Technical Field
[0001] The present invention relates to adjustment of timing in which sounds emitted from
a plurality of speaker units arrive to a user.
Background Art
[0002] In Patent Literature 1, speaker units are proposed which are capable of controlling
sound emission timings (delay time) of the respective speaker units according to a
plurality of installation modes such as corner installment in which the speaker units
are backed by the corner of a room and wall installment in which the speaker units
are backed by the wall of the room. Further prior art can be found in Patent Literatures
2 to 4.
Citation List
Patent Literature
Summary of Invention
Technical Problem
[0004] In Patent Literature 1, settings of the corner installment (corner placement) and
the wall installment (wall placement) are performed but settings of the delay times
of the respective speaker units are performed through measurement, and thus a microphone
for separate measurement, a measurement circuit, and the like are necessary. In addition,
in order to perform novel design for a speaker device, it is considered that some
speaker units are provided on a back surface side. However, in Patent Literature 1,
the entirety of speaker units are arranged to face a front side, and the control of
timings, in which speaker units installed to face a back surface and speaker units
installed to face an upper surface or a front surface emit sounds, is not taken into
consideration.
[0005] Here, an object of the present invention is to provide a speaker device, an audio
reproduction system, and a program which are capable of adjusting timings in which
sounds emitted from the back surface and sounds emitted from the front surface or
the upper surface arrive to the user.
Solution to Problem
[0006] A speaker device according to an aspect of the present invention is configured by
including: a housing having an opening section on a back surface, and an opening section
on an upper surface or a front surface; a first speaker unit provided in the opening
section on the back surface; a second speaker unit provided in the opening section
on the upper surface or the front surface; a delay section adapted to delay sounds
emitted from the second speaker unit; manipulation reception means for receiving user
inputs of an installation mode which indicates an arrangement of the housing with
respect to a wall or a corner in a back surface direction of the housing and a back
surface distance which is a distance to the wall or the corner; calculation means
for calculating delay time of the delay section based on the installation mode and
the back surface distance input from the manipulation reception means; and setting
means for setting the delay time calculated by the calculation means into the delay
section.
[0007] An audio reproduction system according to an aspect of the present invention includes
a speaker device and a remote controller. The speaker device includes: a housing having
an opening section on a back surface, and an opening section on an upper surface or
a front surface; a first speaker unit provided in the opening section on the back
surface; a second speaker unit provided in the opening section on the upper surface
or the front surface; a delay section adapted to delay sounds emitted from the second
speaker unit; and a communication unit adapted to communicate with the remote controller.
The remote controller includes: a communication unit adapted to communicate with the
speaker device; manipulation reception means for receiving manipulation of a user
by displaying a manipulation screen which receives inputs of an installation mode
indicating arrangement of the housing with respect to a wall or a corner in a back
surface direction of the housing, and a back surface distance indicating a distance
to the wall or the corner; and transmission means for transmitting the installation
mode and the back surface distance input from the manipulation reception means to
the speaker device. The speaker device further includes: calculation means for calculating
delay time of the delay section based on the installation mode and the back surface
distance received from the remote controller; and setting means for setting the delay
time calculated by the calculation means into the delay section.
[0008] An audio reproduction system according to an aspect of the present invention includes
a speaker device and a remote controller. The speaker device includes: a housing having
an opening section on a back surface, and an opening section on an upper surface or
a front surface; a first speaker unit provided in the opening section on the back
surface; a second speaker unit provided in the opening section on the upper surface
or the front surface; a delay section adapted to delay sounds emitted from the second
speaker unit; and a communication unit adapted to communicate with the remote controller.
The remote controller includes: a communication unit adapted to communicate with the
speaker device; manipulation reception means for receiving manipulation of a user
by displaying a manipulation screen which receives inputs of an installation mode
indicating arrangement of the housing with respect to a wall or a corner in a back
surface direction of the housing, and a back surface distance indicating a distance
to the wall or the corner; calculation means for calculating delay time of the delay
section based on the installation mode and the back surface distance input from the
manipulation reception means; and transmission means for transmitting the delay time
calculated by the calculation means to the speaker device. The speaker device further
includes setting means for setting the delay time received from the remote controller
into the delay section.
[0009] The speaker device may further include: a middle tone range filter adapted to extract
a middle tone range component signal including a human voice from an audible frequency
band of an input audio signal, and to supply the middle tone range component signal
to the second speaker unit; a low tone range filter and a high tone range filter adapted
to extract a low tone range component signal and a high tone range component signal
other than the middle tone range component signal, and to supply the low tone range
component signal and the high tone range component signal to the first component signal
and the high tone range component signal to the first speaker unit; and an equalizer
adapted to independently control respective gains of output signals of the low tone
range filter, the middle tone range filter, and the high tone range filter.
[0010] In this case, a middle tone range speaker, in which sound emission characteristics
of the low tone range are suppressed, may be used as the second speaker unit, and
the middle tone range filter may be a low-pass filter adapted to extract signal components
of the middle tone range and a lower tone range including the low tone range component.
[0011] The remote controller may further include: second manipulation reception means for
receiving manipulation of a user by displaying a manipulation screen which receives
an input of a type of the wall; gain correction means for correcting the plurality
of gains of the equalizer according to the type of the wall input by the second manipulation
reception means; and second transmission means for transmitting the corrected gain
to the speaker device, and the speaker device may set the gain received from the remote
controller into the equalizer.
[0012] The manipulation screen of the remote controller may display a plurality of installation
modes which respectively indicates different arrangements of the housing with respect
to the wall or the corner in the back surface direction of the housing, and the manipulation
reception means may receive the manipulation of the user selecting one installation
mode from among the plurality of installation modes.
[0013] A program according to an aspect of the present invention causes a computer of a
mobile phone capable of communicating with a speaker device to function as: manipulation
reception means for receiving manipulation of a user by displaying a manipulation
screen which receives inputs of an installation mode indicating arrangement of a housing
of the speaker device with respect to a wall or a corner in a back surface direction
of the housing, and a back surface distance indicating a distance to the wall or the
corner; and transmission means for transmitting the installation mode and the back
surface distance input from the manipulation reception means to the speaker device.
[0014] A program according to an aspect of the present invention causes a computer of a
mobile phone capable of communicating with a speaker device installation mode indicating
arrangement of a housing of the speaker device with respect to a wall or a corner
in a back surface direction of the housing, and a back surface distance indicating
a distance to the wall or the corner; calculation means for calculating delay time
of a delay section of the speaker device based on the installation mode and the back
surface distance input from the manipulation reception means; and transmission means
for transmitting the delay time calculated by the calculation means to the speaker
device.
[0015] A program according to an aspect of the present invention causes a computer of a
mobile phone capable of communicating with a speaker device to function as: manipulation
reception means for receiving manipulation of a user by displaying a manipulation
screen which receives inputs of an installation mode indicating arrangement of a housing
of the speaker device with respect to a wall or a corner in a back surface direction
of the housing, and a back surface distance indicating a distance to the wall or the
corner; calculation means for calculating delay time of a delay section of the speaker
device based on the installation mode and the back surface distance input from the
manipulation reception means; transmission means for transmitting the delay time calculated
by the calculation means to the speaker device; second manipulation reception means
for receiving manipulation of a user by displaying a manipulation screen which receives
an input of a type of the wall; gain correction means for correcting a gain of an
equalizer of the speaker device according to the type of the wall input by the second
manipulation reception means; and second transmission means for transmitting the corrected
gain to the speaker device.
Advantageous Effects of Invention
[0016] According to the present invention, the user can set the delay time of a second speaker
unit by only inputting the installation mode and the back surface distance of the
speaker device to the remote controller.
Brief Description of Drawings
[0017]
Fig. 1 is an appearance view illustrating a speaker device according to an embodiment
of the present invention.
Fig. 2 is a perspective view illustrating a head piece which is provided on the upper
end of the speaker device.
Fig. 3 illustrates examples of the installation modes of the speaker device.
Fig. 4 is a block diagram illustrating the electronic circuit of the speaker device.
Fig. 5 is a block diagram illustrating the signal processing unit and the speaker
driver of the speaker device.
Fig. 6 is a graph illustrating the characteristics of the filters which are provided
in the speaker device.
Fig. 7 illustrates a method of calculating delay time of sounds emitted from speaker
units which are provided in the back surface direction.
Fig. 8 is a block diagram illustrating a mobile phone which functions as the remote
controller of the speaker device.
Fig. 9 is a functional block diagram illustrating a remote controller (DTA controller)
which is configured in cooperation with the mobile phone and an application program.
Fig. 10 illustrates the tree structure of the display screen of the remote controller.
Fig. 11 illustrates an option screen and an equalizer screen.
Fig. 12 illustrates a sound environment setting screen.
Fig. 13 illustrates a wall selection screen.
Fig. 14 illustrates a gain correction table.
Description of Embodiments
[0018] A speaker device according to an embodiment of the present invention will be described
with reference to the accompanying drawings. Fig. 1 is an appearance view illustrating
a speaker device 1, in which Fig. 1(A) is a front view, Fig. 1(B) is a right side
view, and Fig. 1(C) is a back side view.
[0019] The speaker device 1 includes a housing 11 in which a plurality of speakers is accommodated,
a disk shaped base 14 which supports the housing 11 from a floor surface, and a stick
shaped pillow 13 which connects the housing 11 to the base 14. The housing 11 is supported
by the pillow 13 and the base 14, and is founded in the vertical direction.
[0020] The housing 11 has an approximately quadrangular prism form, and has a width which
is slightly narrow on the front side in the upper direction. That is, the housing
11 accurately has a square pyramid form (form acquired by cutting the side of the
apex (head) of a quadrangular pyramid by a surface which is parallel to the bottom
surface). The side surface of the housing 11 is 2 percent inclined to a vertical line.
The speaker device 1 is installed in such a way that a ridge line section 19 interposed
between two-side surfaces becomes the front (user direction). In the description below,
a front surface direction is called the front side and a back surface direction is
called the back side. In addition, the direction when the user in the front direction
views the speaker device 1 is used as the left and right direction.
[0021] In the speaker device 1, speaker units 210L and 210R are provided to face backward,
and a speaker grill 12 is provided on the back surface side of the housing 11, as
illustrated in Figs. 1(B) and 1(C). Therefore, it is not necessary to provide the
speaker grill 12 on the front side of the speaker device 1.
[0022] The inside of the housing 11 is partitioned by two partition plates, and has a structure
which has three spaces in the vertical direction. The housing 11 is used as a speaker
box 30 for a middle tone range, in which an upper space accommodates a speaker unit
211C, a stereo speaker box 31 in which a central space accommodates speaker units
210L and 210R, and a circuit box 32 in which a lower space accommodates an electronic
circuit 15.
[0023] In addition, the speaker box 30 for the middle tone range includes an upper surface
which has an opening, and the speaker unit 211C is attached to the opening section
to face upward. A head piece 10, which reflects sounds emitted from the speaker unit
211C to the front side, is further provided on the speaker unit 211C.
[0024] The speaker units 210L and 210R are full range speaker units for respective left
and right channels which are in charge of sound emission in the low tone range and
the high tone range. The speaker unit 211C is a middle range speaker unit which is
common to the left and right channels which are in charge of sound emission in the
middle tone range. Here, the middle tone range is a frequency band which mainly covers
a human voice, and corresponds to, for example, a range of 100 Hz to 7000 Hz. Meanwhile,
the middle tone range is not limited thereto, and may be, for example, 300 to 3400
Hz which is a band used for a telephone. The high tone range is a higher frequency
band than the middle tone range, and the low tone range is a lower frequency band
than the middle tone range. Hereinafter, the lower limit frequency of the middle tone
range is referred to as FL, and the upper limit frequency of the middle tone range
is referred to as FH.
[0025] Fig. 2 is a perspective view illustrating the head piece. The head piece 10 includes
an upper part main body section 101 which has a sound emission opening 110, a top
plate 102 which is arranged on the upper surface of the main body section 101, and
a lower part skirt 106. The form of the main body section 101 is approximately a cube.
A circular opening section 103A is formed at the central part of the bottom plate
103 of the head piece 10. The caliber of the opening section 103A is substantially
the same as the caliber of the speaker unit 211C.
[0026] On the inner side of the main body section 101, two reflectors 105 (105A and 105B)
are formed which are triangular surfaces and connect an apex 105C on the lower side
of an edge interposed between two side surfaces 113 and 114 which are back plate 104
and the upper edge of two side surfaces 111 and 112 which correspond to the (cut-out)
sound emission opening 110. Since the main body section 101 is approximately a cube,
the left and right surfaces 105A and 105B of the reflectors 105 form an angle of approximately
45° for horizontal surfaces such as the bottom plate 103.
[0027] The sound emission surface of the speaker unit 211C is disposed upright on the lower
side of the head piece 10 at the same central axis. In addition, the surface of the
reflector 105 of the head piece 10 is arranged to face the sound emission surface
of the speaker unit 211C, and the inclined angle is approximately 45°. Therefore,
sound, which is emitted from the speaker unit 211C in the upper direction, is propagated
to be reflected in the reflector 105 and is propagated in diagonally front sides in
the left and right direction as arrows 130 shown in Fig. 2. Therefore, even when sounds
are emitted upward from the speaker unit 211C, the sounds are reflected in the reflector
105, and thus it is possible to propagate the sounds to the left and right direction
on the front side from the front surface side of the side surfaces of the housing
11 without loss.
[0028] Fig. 3 illustrates examples of the installation modes of the speaker device 1. Fig.
3(A) illustrates an example in which the speaker device 1 is installed while being
backed by the corner of the room (corner) 81. In the installation mode, the left and
right walls 80L and 80R of the corner 81 are located behind the speaker device 1 as
reflection surfaces at an angle of approximately 45° from the forth and back direction
of the speaker device 1. In addition, Fig. 3(B) illustrates an example in which the
speaker device 1 is installed while being backed by a wall 80. In the installation
mode, the wall 80 is located behind the speaker device 1 as a reflection surface at
an angle of approximately 90° from the forth and back direction of the speaker device
1.
[0029] When a sound signal is input to the speaker device 1, sounds of the left and right
channels are respectively emitted from the speaker units 210L and 210R. The speaker
units 210L and 210R are provided in the back surface direction (to face the wall).
Therefore, when the speaker device 1 is installed as shown in Fig. 3, sounds of the
left and right channels, which are emitted from the speaker units 210L and 210R, are
reflected in the wall 80 (L and R) in the back surface direction and are propagated
to the front side (indoor direction). Therefore, the sounds, which are emitted from
the speaker units 210L and 210R, are emitted from the speaker unit 211C on the upper
surface, and thus time in which distance reflected in the wall 80 is late compared
to sounds which are directly propagated to the front side. Here, in the signal processing
unit 201 (refer to Fig. 5) of the speaker device 1, an audio signal which is input
to the speaker unit 211C coincides with timing in which the sounds emitted by the
speaker units 210L and 210R and the speaker unit 211C arrive to the user by delaying
time corresponding to a distance reflected in the wall 80.
[0030] In addition, when the speaker device 1 is installed as shown in Fig. 3, sounds of
the left and right channels, which are emitted from the speaker units 210L and 210R,
are reflected in the wall 80 (L and R) in the back surface direction and are propagated
to the front side (indoor direction). The sounds in the high tone range from among
sounds emitted from the speaker units 210L and 210R have strong straightness, and
thus the sounds in the high tone range excellently reflects in the walls, thereby
contributing to give stereo feeling to a listener. In addition, sounds in the low
tone range do not have strong sense of localization in hearing sense. Therefore, even
when sounds are heard in the vicinity of a wall surface, the sense of incongruity
is small for a user (listener). In contrast, sounds in the middle tone range correspond
to a tone range which includes a talking voice or a singing voice of a person. Therefore,
when sounds are reflected in the wall surface, the sounds are largely attenuated and
become so-called "withdrawal" thereby deteriorating the clarity of sound. Here, the
speaker device 1 extracts components in the middle tone range from the sounds of the
left and right channels, and emits the sounds of the middle tone range from the speaker
unit 211C which faces upward. Although the speaker unit 211C faces upward, the emitted
sounds of the middle tone range are favorably propagated to the front side due to
the head piece 10 which is provided on the speaker unit 211C. Therefore, it is possible
to cause the sounds from the low tone range to the high tone range to be clearly heard
to the user without feeling uncomfortable.
[0031] The electronic circuit 15 is built in the circuit box 32 of the housing 11. Fig.
4 is a block diagram illustrating the main part of the electronic circuit 15. In addition,
Fig. 5 is a block diagram illustrating the details of the signal processing unit 201
and the speaker driver 202 of the electronic circuit 15. In Fig. 4, the electronic
circuit 15 includes a controller 50, a signal processing unit 201, a speaker driver
202, an input selector 53, a Bluetooth (tone ranged trademark) communication circuit
54, and a cable connector 55.
[0032] The controller 50 includes an icon. The Bluetooth communication circuit 54 is connected
to the controller 50. The Bluetooth communication circuit 54 receives inputs of a
command, which is received from a machine, such as a multifunction mobile phone (smart
phone), having a controller function, to the controller 50. The controller 50 performs
the setting of the signal processing unit 201 and selection of a signal which is input
by the input selector 53 based on the command which is input from the Bluetooth communication
circuit 54. The Bluetooth communication circuit 54 and the cable connector 55 are
connected to the input selector 53. The input selector 53 selects any one of the Bluetooth
communication circuit 54 and the cable connector 55 according to a selection signal
which is input from the controller 50, and inputs an audio signal which is input from
the selected circuit to the signal processing unit 201.
[0033] The signal processing unit 201 adjusts the sound quality of the (2 channel stereo)
audio signal which is input from the input selector 53, extracts and composes the
components of the middle tone range from the signals of the left and right channels,
and outputs a resulting signal as the audio signal of a third channel (central channel).
In addition, the signal processing unit 201 makes time, in which sounds emitted from
the respective speaker units 210L, 210R, and 211C arrive to the user, coincide by
delaying the audio signal of the central channel. In Fig. 5, the speaker driver 202
includes amplifiers 226L and 226R and an amplifier 229 of three channels, amplifies
the respective audio signals of a left channel, a right channel, and the middle tone
range, and outputs the amplified signals to the respective speaker units 210L, 210R,
and 211C. The details of the signal processing unit 201 and the speaker driver 202
will be described with reference to Fig. 5.
[0034] Fig. 5 is a block diagram illustrating the signal processing unit 201 and the speaker
driver 202 of the speaker device 1. In the block diagram, the signal processing unit
201 includes low-pass filters 220L, 220R, 227L, and 227R, high-pass filters 221L and
221R, gain adjustment sections 223L, 223R, 224L, 224R, 228L, and 228R, adders 225L,
225R, and 230C, and a delay section 231C. In addition, the speaker driver 202 includes
the amplifiers 226L, 226R, and 229C.
[0035] The left channel audio signal input section 212L inputs the audio signal of the left
channel and supplies the audio signal of the left channel to the low-pass filters
220L and 227L and the high-pass filter 221L. The low-pass filter 220L is a filter
which causes a signal that is equal to or lower than the lower limit frequency FL
in the middle tone range to pass. The frequency characteristics of the low-pass filter
220L are illustrated in Fig. 6(B). A left-side curved line LPF indicates the characteristics
of the low-pass filter 220L. The gain of the audio signal of the low tone range which
passes through the low-pass filter 220L is adjusted at the gain adjustment section
223L, and the audio signal is input to the adder 225L. The high-pass filter 221L is
a filter which causes a signal that is equal to or higher than the upper limit frequency
FH in the middle tone range to pass. The frequency characteristics of the high-pass
filter 221L are shown in Fig. 6(B). A right-side curved line HPF indicates the characteristics
of the high-pass filter 221L. The gain of the audio signal of the high tone range
which passes through the high-pass filter 221L is adjusted at the gain adjustment
section 224L, and the audio signal is input to the adder 225L. The adder 225L adds
and composes the audio signals of the low tone range and the high tone range of the
left channel. An audio signal, which is acquired through addition and composition,
is amplified by the amplifier 226L and supplied to the speaker unit 210L. Meanwhile,
the gain adjustment sections 223L and 224L may be included in the low-pass filter
220L and the high-pass filter 221L, respectively.
[0036] The audio signal of the right channel is input to the right channel audio signal
input section 212R, and the right channel audio signal input section 212R supplies
the audio signal of the right channel to the low-pass filters 220R and 227R and the
high-pass filter 221R.
[0037] The low-pass filter 220R is a filter which causes a signal that is equal to or lower
than the lower limit frequency FL in the middle tone range to pass. The frequency
characteristics of the low-pass filter 220R are also shown in the left side of Fig.
6(B) similarly to the low-pass filter 220L. The gain of the audio signal of the low
tone range which passes through the low-pass filter 220R is adjusted at the gain adjustment
section 223R, and the audio signal is input to the adder 225R. The high-pass filter
221R is a filter which causes a signal that is equal to or higher than the upper limit
frequency FH in the middle tone range to pass. The frequency characteristics of the
high-pass filter 221R are also shown in the right side of Fig. 6(B) similarly to the
high-pass filter 221L. The gain of the audio signal of the high tone range which passes
through the high-pass filter 221R is adjusted at the gain adjustment section 224R,
and the audio signal is input to the adder 225R. The adder 225R adds and composes
the audio signals of the low tone range and the high tone range of the right channel.
An audio signal, which is acquired through addition and composition, is amplified
by the amplifier 226R and supplied to the speaker unit 210R. Meanwhile, the gain adjustment
sections 223R and 224R may be included in the low-pass filter 220R and the high-pass
filter 221R, respectively.
[0038] In addition, the low-pass filter 227L of the left channel is a filter which causes
a signal that is equal to or lower than the upper limit frequency FH in the middle
tone range to pass. The frequency characteristics of the low-pass filter 227L are
also shown in Fig. 6(A). The gain of the audio signal, which passes through the low-pass
filter 227L, is adjusted at the gain adjustment section 228L, and the audio signal
is input to the adder 230C. The low-pass filter 227R of the right channel is a filter
which causes a signal that is equal to or lower than the upper limit frequency FH
in the middle tone range to pass. The frequency characteristics of the low-pass filter
227R are also shown in Fig. 6(A) similarly to the low-pass filter 227L. The gain of
the audio signal, which passes through the low-pass filter 227R, is adjusted at the
gain adjustment section 228R, and the audio signal is input to the adder 230C. The
adder 230C adds and composes the audio signals of the middle tone range of the left
and right channels.
[0039] An audio signal, which is acquired through addition and composition, is input to
the delay section 231C. The delay section 231C delays the audio signal for only predetermined
delay time and outputs the audio signal. The delay time is set to time in which sounds
emitted from the speaker units 210L and 210R are reflected in the wall 80 and returns
to the vicinity of the location where the speaker device 1 is installed. Therefore,
it is possible to cause timing in which the sounds emitted from the speaker units
210L and 210R arrive to the user to coincide with timing in which the sounds emitted
from the speaker unit 211C arrive to the user. The audio signal, which is delayed
by the delay section 231C, is amplified by the amplifier 229C and supplied to the
speaker unit 211C. Meanwhile, the gain adjustment sections 228L and 228R may be included
in the low-pass filter 227L and the low-pass filter 227R, respectively.
[0040] The components of the low tone range are included in the audio signals which are
output from the low-pass filters 227L and 227R. However, the speaker unit 211C is
a midrange speaker unit and has a characteristic in that sounds in the low tone range
are not emitted, and thus the sounds emitted from the speaker unit 211C become sounds
in only the middle tone range, which are acquired by correcting the above-described
filter characteristics in Fig. 2(A) by speaker characteristics expressed by dotted
line. Meanwhile, the low-pass filters 227L and 227R may be band-pass filters of the
middle tone range.
[0041] Meanwhile, the delay amount (delay time) of the delay section 231C and the gains
of the gain adjustment sections 223L, 223R, 224L, 224R, 228L, and 228R are set by
the controller 50. When the gains of the gain adjustment sections 223L and 223R which
adjust the gain of the low tone range, the gain adjustment sections 224L and 224R
which adjusts the gain of the high tone range, and the gains of the gain adjustment
sections 228L and 228R which adjust the gain of the middle tone range are independently
controlled, it is possible to cause the gain adjustment sections 223L and 223R, the
gain adjustment sections 224L and 224R, and the gain adjustment sections 228L and
228R to function as an equalizer. Sounds of adjacent tone ranges are emitted from
individual speaker units. Therefore, when the gains of the high tone range, the middle
tone range and the low tone range are adjusted, sounds in which the gains are adjusted
are independently emitted without affecting the adjacent tone ranges.
[0042] As described above, when the component signal of the low tone range and the component
signal of the high tone range are amplified by the same amplifier and emitted from
the same speaker units 210 and when the component signal of the middle tone range
and the component signal of the low tone range are amplified by separate amplifiers
and emitted from separate speaker units, it is possible to separate the high tone
range, the middle tone range, and the low tone range by a two-way speaker device,
and thus it is easy to independently adjust gains. In addition, in a speaker device
according to the related art which divides a system into a middle-low tone and a high
tone, when, for example, the low tone range is boosted, the middle tone range is affected
by the boosting of the low tone range, with the result that the gain increases and
the sound quality of the middle tone range changes, and thus loads are applied to
an amplifier which amplifies a middle-low tone. However, in the speaker device 1 according
to the embodiment, even when the low tone range is boosted, the middle tone range
is not affected, and thus the sound quality is not changed and loads are not applied
to the speaker units.
[0043] Fig. 7 illustrates a method of calculating the delay amount (delay time) which is
set in the delay section 231C. Fig. 7(A) illustrates a method of calculating the delay
amount when the installation mode is "corner placement" and Fig. 7(B) illustrates
a method of calculating the delay amount when the installation mode is "wall placement".
Here, reference symbol A indicates a length of 1/2 of a diagonal line of a plane form
(approximately square) of the speaker device 1, reference B indicates a length from
the center of the plane form of the speaker device 1 to the speaker unit 210(L/R),
and B=A
∗cos40°. That is, the speaker unit 210 is provided toward a direction which is inclined
by 40° from the diagonal line of the forth and back direction of the housing 11.
[0044] The plane sizes A and B of the speaker device 1 are stored in advance. In addition,
a distance L to the wall 80 (corner 81) behind the speaker device 1 and the installation
mode are input by the user. When the installation mode and the distance L to the wall
80 are input, a distance X between the speaker unit 210 and the wall surface is calculated
using an operation equation below. Equation 1 is an operation equation used in a case
of the corner placement and Equation 2 is an operation equation in a case of the wall
placement. The distance X corresponds to a distance until sounds emitted from the
speaker unit 210 arrive to the wall 80.


[0045] Further, in the embodiment, it is assumed that twice (2X) the calculated distance
X is approximately distance difference between a path until the sounds emitted from
the speaker unit 210 arrives to the user and a path until the sounds emitted from
the speaker units 211 arrives to the user, and delay time D which is taken to cancel
the distance difference 2X is calculated and is set in the delay section 231C. Meanwhile,
a method of calculating delay time to cancel "the distance difference between the
path until the sounds emitted from the speaker unit 210 arrives to the user and the
path until the sounds emitted from the speaker units 211 arrives to the user" is not
limited to the method described with reference to Fig. 7.
[0046] The installation mode and the distance L to the wall 80 are input by the user using
a remote controller which communicates with the speaker device 1 through Bluetooth.
For example, a multifunction mobile phone (smart phone), in which a controller application
program is installed, is used as the remote controller. Based on the installation
mode and the distance L which are input by the user, the calculation of the distance
X and the delay time D may be performed by the remote controller or may be performed
by the controller 50 of the speaker device 1. In addition, the operations may be shared
by the remote controller and the controller 50.
[0047] Fig. 8 is a block diagram illustrating a mobile phone 300 in which a DTA controller
application program 350 is executed that communicates with a multifunction mobile
phone (hereinafter, simply referred to as a mobile phone) speaker device 1 having
a remote control function through Bluetooth and that performs sound setting. Meanwhile,
the mobile phone 300 in which the DTA controller application program 350 is executed
functionally forms a DTA controller 400 shown in Fig. 9.
[0048] The mobile phone 300 includes a controller 320, a manipulator 330, a media interface
331, a 3G/4G communication circuit 332, a Bluetooth communication circuit 333, and
a Wi-Fi communication circuit 334 on a bus 326. The controller 320 includes a CPU
321, a ROM (flash memory) 322, a RAM 323, an image processor 324 and a sound processor
325. The image processor 324 is connected to a Video RAM (VRAM) 340, and the VRAM
340 is connected to a display part 341. The display part 341 includes a liquid crystal
display, and displays a standby screen, a telephone number, and the like. In addition,
the screen of the DTA controller 400 is also displayed on the display part 341. The
sound processor 325 is connected to an amplifier 342 which includes a D/A converter,
and the amplifier 342 is connected to a speaker 316.
[0049] The image processor 324 includes a Graphics Processing Unit (GPU) which generates
various images such as the standby screen and the telephone number. When the DTA controller
application program 350 starts, the image processor 324 generates an image of the
DTA controller as shown in Figs. 11 to 13 according to an instruction of the CPU 321,
and deploys the image on the VRAM 340. The image which is deployed on the VRAM 340
is displayed on the display part 341.
[0050] The sound processor 325 has a Digital Signal Processor (DSP) which encodes/decodes
telephone call sound. The sound processor 325 outputs decoded/generated sounds to
the amplifier 342. The amplifier 342 amplifies the sound signal and outputs a resulting
sound signal to the speaker 316.
[0051] The 3G/4G communication circuit 332 performs voice communication and data communication
through a mobile telephone communication network. The application program of the DTA
controller or the like is downloaded through the data communication. Meanwhile, the
application program may be acquired through Wi-Fi communication or an interface, such
as a USB, in addition to the downloading in the 3G/4G communication.
[0052] The Bluetooth communication circuit 333 communicates with a machine which is selected
and set (paired) as an opposite party apparatus. The DTA controller application program
350 (DTA controller 400) communicates with the speaker device 1, and transmits the
above-described installation mode and the distance L.
[0053] The Wi-Fi communication circuit 334 performs wireless communication with a wireless
access point in conformity with IEEE802.11g standard. The communication with the speaker
device 1 may be performed in a Digital Living Network Alliance (DLNA).
[0054] The manipulator 330 includes a touch panel which is formed on the display part 341,
and detects touch manipulation and click manipulation on the touch panel. The media
interface 331 is connected to a memory card 315. The memory card 315 is, for example,
a micro SD card. The application program, which is downloaded from a server by the
3G/4G communication circuit 332, is maintained in the memory card 315 or the ROM 322.
In the mobile phone 300, the DTA controller application program 350 is maintained
in the memory card 315, as shown in Fig. 8. Meanwhile, the DTA controller application
program 350 includes data, which is necessary to execute the program, in addition
to a program body. The data which is necessary to execute the program includes, for
example, image data for displaying the screen shown in Figs. 11 to 13 and a gain correction
table shown in Fig. 14.
[0055] In the ROM 322, a basic program for executing the telephone call and the application
program of the mobile phone 300 is stored. In addition, the ROM 322 is a flash memory,
and is capable of storing a downloaded application program in addition to the basic
program. In the RAM 323, a work area which is used when the DTA controller application
program 350 is executed by the CPU 320 is set.
[0056] The mobile phone 300 forms the DTA controller 400 as shown in Fig. 9 by cooperating
with the DTA controller application program 350 which is maintained in the memory
card 315, and controls the speaker device 1 by transmitting a message to the speaker
device 1 through Bluetooth.
[0057] The DTA controller 400, which is realized in such a way that the DTA controller application
program 350 is read by the mobile phone 300 (hardware), will be described with reference
to the functional block diagram of Fig. 9. The DTA controller 400 includes a manipulation
screen display part 410, a manipulation detection section 420, a message edit and
transmission section 430, and a state acquisition section 440.
[0058] The manipulation screen display part 410 is realized by the cooperation of the controller
320, the VRAM 340, display part 341, and the DTA controller application program 350,
and displays various manipulation screens on the display part 341 of the mobile phone
300. In addition, the manipulation detection section 420 is realized by the cooperation
of the controller 320, the manipulator 330, and the DTA controller application program
350, and detects manipulation (for example, selection manipulation of the installation
mode and input manipulation of the distance L) for the manipulation screen which is
displayed on the display part 341. The detected manipulation information is input
to the manipulation screen display part 410, the message edit and transmission section
430, and the like.
[0059] The message edit and transmission section 430 is realized by the cooperation of the
controller 320, the Bluetooth communication circuit 333, and the DTA controller application
program 350. The message edit and transmission section 430 edits a message corresponding
to the manipulation information based on the manipulation information such as the
installation mode and the distance L which are input from the manipulation detection
section 420. Further, the message edit and transmission section 430 transmits the
message to the speaker device 1. When the DTA controller 400 performs an operation
on the distance X and the delay time D based on the installation mode and the distance
L, the message includes the delay time D (and the distance X). When the operation
is performed by the controller 50 of the speaker device 1, the message includes the
installation mode and the distance L.
[0060] The state acquisition section 440 is realized by the cooperation of the controller
320, the Bluetooth communication circuit 333, and the DTA controller application program
350. The state acquisition section 440 inquires of the speaker device 1, and acquires
the operation state of the speaker device 1. The operation state includes the installation
mode, the distance L, and content which are set by the equalizer which includes the
above-described gain adjustment sections 223L and 223R, the gain adjustment sections
224L and 224R, and the gain adjustment sections 228L and 228R. The acquired operation
state is reflected into the initial value of the manipulation screen shown in Fig.
12 or the like.
[0061] Fig. 10 illustrates the tree structure of the display screen of the DTA controller
400. Figs. 11 to 13 are views illustrating examples of option screens of the display
screen.
[0062] In Fig. 10, when the DTA controller 400 starts, a top screen 501 is formed on the
display part 341 by the manipulation screen display part 410. On the top screen 501,
a reproduction button 502, a schedule button 503, and a setting button 504 are displayed.
When the reproduction button 502 is tapped (briefly push-down manipulation) on the
top screen 501, a screen which is formed on the display part 341 is transitioned from
the top screen 501 to a reproduce screen 510. On the reproduce screen 510, a source
machine selection window 511 and a manipulation button group 512 are displayed. In
the source machine selection window 511, a plurality of source machines (for example,
a machine selected through Bluetooth and a machine which is connected through a cable
connector 55) are displayed. The user taps and selects a desired machine from among
the machines. If so, the manipulation button group 512 for manipulating the selected
machine is displayed on the display part 341.
[0063] In addition, an option button 513 is also displayed on the reproduce screen 510.
The option button 513 is a button for transitioning the screen to an option screen
530 for inputting the above-described installation mode and the distance L. When the
option button 513 is tapped, a screen which is formed on the display part 341 is transitioned
from the reproduce screen 510 to the option screen 530.
[0064] Meanwhile, when the schedule button 503 is tapped on the top screen 501, the screen
which is formed on the display part 341 is transitioned from the top screen 501 to
a schedule screen 520 in which the reproduction and illumination schedule of the speaker
device 1 are set by the week. In addition, when the setting button 504 is tapped on
the top screen 501, the screen which is formed on the display part 341 is transitioned
from the top screen 501 to the setting screen 521 for performing a pairing process
of Bluetooth and synchronization of clocks.
[0065] Fig. 11(A) illustrates the option screen 530 which is formed on the display part
341. On the option screen 530, a sound environment button 531, an EQ (sound adjustment)
button 532, and a return button 533 are displayed. The sound environment button 531
is a button for transitioning the screen formed on the display part 341 to a sound
environment setting screen 540 shown in Fig. 12. The sound environment setting screen
540 is a screen for inputting the above-described installation mode and the distance
L. The EQ button 532 is a button for transitioning the screen formed on the display
part 341 to an equalizer screen 560 shown in Fig. 11(B). In addition, the return button
533 is a button for returning the screen formed on the display part 341 to the reproduce
screen 510.
[0066] In Fig. 11(B), on the equalizer screen 560, a low tone range gain adjustment section
561, a middle tone range gain adjustment section 562, a high tone range gain adjustment
section 563, and a flat button 564 are displayed. The low tone range gain adjustment
section 561 includes a bar graph 561A which indicates the set gain, an up button 561U,
and a down button 561D. When the push-down manipulation is performed on the up button
561U by the user, the gain of the low tone range increase according to manipulation
time or the number of times of manipulation, and thus the colored parts of the bar
graph 561A extend in a upward direction or the colored parts which extend in a downward
direction are shrank. When the push-down manipulation is performed on the down button
561D by the user, the gain of the low tone range decreases according to manipulation
time or the number of times of manipulation, and thus the colored parts of the bar
graph 561A extend in the downward direction or the colored parts which extend in the
upward direction are shrank. The configurations and operations of the middle tone
range gain adjustment section 562 and the high tone range gain adjustment section
563 are the same as those of the low tone range gain adjustment section 561. In addition,
when the flat button 564 is tapped, all the gains of the low tone range, the middle
tone range, and the high tone range are reset to 0 dB (center of the graph). When
the equalizer screen is manipulated by the user, the message edit and transmission
section 430 transmits the gains, which are set through the manipulation, to the speaker
device 1 in real time.
[0067] In Fig. 12, on the sound environment setting screen 540, arrangement selection buttons
541 (541A, 541B, and 541C), a distance input section 542, a wall selection button
544, and a return button 545 are displayed. The arrangement selection buttons 541
(541A, 541B, 541C) are buttons for inputting the installation mode of the speaker
device 1, and are displayed by, for example, predetermined icons. The button 541A
is tapped by the user in the case of corner placement of the speaker device 1 shown
in Fig. 7(A). The button 541C is tapped by the user in the case of wall placement
of the speaker device 1 shown in Fig. 7(B). In addition, the button 541B is a button
which is tapped when the speaker device 1 is installed in a case of middle placement
between the corner placement and the wall placement, that is, backed by the wall at
the corner of a room. When any one of the arrangement selection buttons 541 are tapped,
the manipulation screen display part 410 displays a plane view 543 of the selected
installation mode on the sound environment setting screen 540. The plane view 543
of Fig. 12 illustrates an example displayed when the button 541A of the corner placement
is tapped.
[0068] In Fig. 12, the plane view 543 indicates the distance L from the speaker device 1
to a certain location of the wall 80 (corner 81). The distance input section 542 includes
a bar graph 542A, a +button 542U, and a -button 542D which indicate the distance L.
When the push-down manipulation is performed on the +button 542U by the user, the
distance L increases according to the manipulation time or the number of times of
manipulation, and thus the colored part of the bar graph 542A extends in the right
direction. In addition, when the push-down manipulation is performed on the -button
542D by the user, the distance L decreases according to the manipulation time or the
number of times of manipulation, and thus the colored part of the bar graph 542A is
shrank in the left direction. When the screen formed on the display part 341 is separated
from the sound environment setting screen 540 through the manipulation performed by
the user, the installation mode and the distance L which are input on the sound environment
setting screen 540 are determined.
[0069] When the DTA controller 400 calculates the distance X and the delay time D, the manipulation
detection section 420 calculates the distance X and the delay time D based on the
input installation mode and the distance L, and the message edit and transmission
section 430 transmits the delay time D to the speaker device 1. In the speaker device
1, the Bluetooth communication circuit 54 receives the delay time D and inputs the
delay time D to the controller 50, and the controller 50 sets the delay time D in
the delay section 231C of the signal processing unit 201.
[0070] When the controller 50 of the speaker device 1 calculates the distance X and the
delay time D, the message edit and transmission section 430 of the DTA controller
400 transmits the input installation mode and the distance L as a message to the speaker
device 1 without change. In the speaker device 1, the Bluetooth communication circuit
54 receives the installation mode and the distance L and inputs the installation mode
and the distance L to the controller 50, and the controller 50 calculates the distance
X and the delay time D and sets the delay time D in the delay section 231C of the
signal processing unit 201.
[0071] In addition, when the wall selection button 544 is tapped on the sound environment
setting screen 540, the screen formed on the display part 341 performs transition
from the sound environment setting screen 540 to the wall selection screen 550 shown
in Fig. 13. On the wall selection screen 550, a wall selection button 551 and a low
tone range gain adjustment section 552 are displayed. Since sound reflection efficiency
differs according to the type of the wall, the wall selection screen 550 is a screen
for causing the user to input the type of the wall 80 behind the speaker device 1,
thereby correcting the equalizer. For example, the wall selection screen 550 is a
screen for causing the speaker device 1 to perform a process of emphasizing low sounds
when the selected wall is formed of a material of low reflectance and suppressing
the emphasis of the low sounds when the wall is formed of a material of high reflectance.
[0072] The wall selection button 551 is a button for selecting the type (material) of the
wall behind the speaker device 1, and includes 4 types of buttons below, that is,
a "dividing wall and door" button 551A which indicates a hollow wall, a "concrete
wall" button 551B which indicates a solid hard wall, a "fusuma (Japanese style sliding
door) and shoji (papered sliding door)" button 551C which indicates a partition formed
of paper or cloth, and an etc button 551D which is manipulated in a case of the other
walls or an unclear case.
[0073] Further, the DTA controller 400 (message edit and transmission section 430 or the
state acquisition section 440) stores the gain correction table as shown in Fig. 14.
In the gain correction table, the correction values of the gains of the low tone range,
the middle tone range, and the high tone range of the equalizer are written according
to the type of the wall 80 behind the speaker device 1. When the wall selection button
551 is manipulated by the user and the type of the wall is selected, the DTA controller
400 reads the gain correction value according to the type of the wall, performs correction
by adding the gain correction value to the set value of the equalizer screen 560 in
Fig. 11(B), and transmits the corrected set value to the speaker device 1.
[0074] In addition, the low tone range gain adjustment section 552 is a manipulator for
further adjusting the gain of the low tone range according to the preference of the
user, and is the same as the low tone range gain adjustment section 561 of the equalizer
screen in Fig. 11(B). The low tone range gain adjustment section 552 includes a bar
graph 552A, a +button 552U, and a -button 552D which indicates the gain of the low
tone range. When the push-down manipulation is performed on the +button 552U by the
user, the gain of the low tone range increases according to the manipulation time
or the number of times of manipulation, and the colored part of the bar graph 552A
extends in the right direction. In addition, when the push-down manipulation is performed
on the -button 552D by the user, the gain of the low tone range decreases according
to the manipulation time or the number of times of manipulation, and the colored part
of the bar graph 552A is shrank in the left direction. When the equalizer screen is
manipulated by the user, the message edit and transmission section 430 transmits the
gain, which is set through the manipulation, to the speaker device 1 in real time.
[0075] Meanwhile, the form of the housing 11 of the speaker device 1 is not limited to the
square pyramid form. The housing 11 may have a general columnar shape, such as a truncated
cone form, a columnar shape or a polygonal pillar shape, and may have any form if
a necessary part, such as a speaker unit, is assembled. Any of the components of the
embodiment may be freely modified in a range which does not damage the gist of the
present invention. Meanwhile, the speaker unit 211C for the middle tone range may
be provided to face the front surface instead of facing upward.
Reference Signs List
[0077]
- 1:
- speaker device
- 10:
- head piece
- 11:
- housing
- 15:
- electronic circuit
- 201:
- signal processing unit
- 202:
- speaker driver
- 210L, 210R, 211C:
- speaker unit
- 300:
- mobile phone
- 400:
- DTA controller
1. A speaker device (1) comprising:
a housing (11) having an opening section on a back surface, and an opening section
on an upper surface or a front surface;
a first speaker unit (210) provided in the opening section on the back surface;
a second speaker unit (211C) provided in the opening section on the upper surface
or the front surface;
a delay section (231C) adapted to delay sounds emitted from the second speaker unit;
manipulation reception means for receiving user inputs of an installation mode which
indicates an arrangement of the housing with respect to a wall (80) or a corner (81)
in a back surface direction of the housing and a back surface distance which is a
distance to the wall or the corner;
calculation means for calculating delay time of the delay section based on the installation
mode and the back surface distance input from the manipulation reception means; and
setting means for setting the delay time calculated by the calculation means into
the delay section.
2. An audio reproduction system which includes a speaker device (1) and a remote controller,
wherein the speaker device includes:
a housing (11) having an opening section on a back surface, and an opening section
on an upper surface or a front surface;
a first speaker unit (210) provided in the opening section on the back surface;
a second speaker unit (211C) provided in the opening section on the upper surface
or the front surface;
a delay section (231C) adapted to delay sounds emitted from the second speaker unit;
and
a communication unit adapted to communicate with the remote controller,
wherein the remote controller includes:
a communication unit adapted to communicate with the speaker device;
manipulation reception means for receiving manipulation of a user by displaying a
manipulation screen which receives inputs of an installation mode indicating arrangement
of the housing with respect to a wall (80) or a corner (81) in a back surface direction
of the housing, and a back surface distance indicating a distance to the wall or the
corner; and
transmission means for transmitting the installation mode and the back surface distance
input from the manipulation reception means to the speaker device, and
wherein the speaker device includes:
calculation means for calculating delay time of the delay section based on the installation
mode and the back surface distance received from the remote controller; and
setting means for setting the delay time calculated by the calculation means into
the delay section.
3. An audio reproduction system which includes a speaker device (1) and a remote controller,
wherein the speaker device includes:
a housing (11) having an opening section on a back surface, and an opening section
on an upper surface or a front surface;
a first speaker unit (210) provided in the opening section on the back surface;
a second speaker unit (211C) provided in the opening section on the upper surface
or the front surface;
a delay section (231C) adapted to delay sounds emitted from the second speaker unit;
and
a communication unit adapted to communicate with the remote controller,
wherein the remote controller includes:
a communication unit adapted to communicate with the speaker device;
manipulation reception means for receiving manipulation of a user by displaying a
manipulation screen which receives inputs of an installation mode indicating arrangement
of the housing with respect to a wall (80) or a corner (81) in a back surface direction
of the housing, and a back surface distance indicating a distance to the wall or the
corner;
calculation means for calculating delay time of the delay section based on the installation
mode and the back surface distance input from the manipulation reception means; and
transmission means for transmitting the delay time calculated by the calculation means
to the speaker device, and
wherein the speaker device includes setting means for setting the delay time received
from the remote controller into the delay section.
4. The audio reproduction system according to claim 2 or 3, wherein
the speaker device further includes:
a middle tone range filter adapted to extract a middle tone range component signal
including a human voice from an audible frequency band of an input audio signal, and
to supply the middle tone range component signal to the second speaker unit;
a low tone range filter and a high tone range filter adapted to extract a low tone
range component signal and a high tone range component signal other than the middle
tone range component signal, and to supply the low tone range component signal and
the high tone range component signal to the first speaker unit; and
an equalizer adapted to independently control respective gains of output signals of
the low tone range filter, the middle tone range filter, and the high tone range filter.
5. The audio reproduction system according to claim 4, wherein
a middle tone range speaker, in which sound emission characteristics of the low tone
range are suppressed, is used as the second speaker unit, and
the middle tone range filter is a low-pass filter adapted to extract signal components
of the middle tone range and a lower tone range including the low tone range component.
6. The audio reproduction system according to claim 4 or 5, wherein
the remote controller further includes:
second manipulation reception means for receiving manipulation of a user by displaying
a manipulation screen which receives an input of a type of the wall;
gain correction means for correcting the plurality of gains of the equalizer according
to the type of the wall input by the second manipulation reception means; and
second transmission means for transmitting the corrected gain to the speaker device,
and
the speaker device sets the gain received from the remote controller into the equalizer.
7. The audio reproduction system according to any one of claims 4 to 6, wherein
the manipulation screen of the remote controller displays a plurality of installation
modes which respectively indicates different arrangements of the housing with respect
to the wall or the corner in the back surface direction of the housing, and the manipulation
reception means receives the manipulation of the user selecting one installation mode
from among the plurality of installation modes.
8. A program causing a computer of a mobile phone (300) capable of communicating with
a speaker device (1) to function as:
manipulation reception means for receiving manipulation of a user by displaying a
manipulation screen which receives inputs of an installation mode indicating arrangement
of a housing of the speaker device with respect to a wall (80) or a corner (81) in
a back surface direction of the housing, and a back surface distance indicating a
distance to the wall or the corner; and
transmission means for transmitting the installation mode and the back surface distance
input from the manipulation reception means to the speaker device.
9. A program causing a computer of a mobile phone (300) capable of communicating with
a speaker device (1) to function as:
manipulation reception means for receiving manipulation of a user by displaying a
manipulation screen which receives inputs of an installation mode indicating arrangement
of a housing of the speaker device with respect to a wall (80) or a corner (81) in
a back surface direction of the housing, and a back surface distance indicating a
distance to the wall or the corner;
calculation means for calculating delay time of a delay section of the speaker device
based on the installation mode and the back surface distance input from the manipulation
reception means; and
transmission means for transmitting the delay time calculated by the calculation means
to the speaker device.
10. A program causing a computer of a mobile phone (300) capable of communicating with
a speaker device (1) to function as:
manipulation reception means for receiving manipulation of a user by displaying a
manipulation screen which receives inputs of an installation mode indicating arrangement
of a housing of the speaker device with respect to a wall (80) or a corner (81) in
a back surface direction of the housing, and a back surface distance indicating a
distance to the wall or the corner;
calculation means for calculating delay time of a delay section of the speaker device
based on the installation mode and the back surface distance input from the manipulation
reception means;
transmission means for transmitting the delay time calculated by the calculation means
to the speaker device;
second manipulation reception means for receiving manipulation of a user by displaying
a manipulation screen which receives an input of a type of the wall;
gain correction means for correcting a gain of an equalizer of the speaker device
according to the type of the wall input by the second manipulation reception means;
and
second transmission means for transmitting the corrected gain to the speaker device.
1. Lautsprechervorrichtung (1), umfassend:
ein Gehäuse (11), das einen Öffnungsabschnitt an einer hinteren Oberfläche und einen
Öffnungsabschnitt an einer oberen Oberfläche oder einer vorderen Oberfläche aufweist;
eine erste Lautsprechereinheit (210), die in dem Öffnungsabschnitt an der hinteren
Oberfläche bereitgestellt ist;
eine zweite Lautsprechereinheit (211C), die in dem Öffnungsabschnitt an der oberen
Oberfläche oder der vorderen Oberfläche bereitgestellt ist;
einen Verzögerungsabschnitt (231C), der angepasst ist, um Klänge, die von der zweiten
Lautsprechereinheit emittiert werden, zu verzögern;
ein Manipulationsempfangsmittel zum Empfangen von Nutzereingaben eines Installationsmodus,
der eine Anordnung des Gehäuses in Bezug auf eine Wand (80) oder eine Ecke (81) in
Richtung einer hinteren Oberfläche des Gehäuses angibt, und eines Abstands einer hinteren
Oberfläche, der ein Abstand zu der Wand oder der Ecke ist;
ein Berechnungsmittel zum Berechnen einer Verzögerungszeit des Verzögerungsabschnitts
basierend auf dem Installationsmodus und dem Abstand der hinteren Oberfläche, die
von dem Manipulationsempfangsmittel eingegeben werden; und
ein Einstellmittel zum Einstellen der Verzögerungszeit, die durch das Berechnungsmittel
berechnet wird, in den Verzögerungsabschnitt.
2. Tonwiedergabesystem, das eine Lautsprechervorrichtung (1) und eine Fernsteuerung beinhaltet,
wobei die Lautsprechervorrichtung beinhaltet:
ein Gehäuse (11), das einen Öffnungsabschnitt an einer hinteren Oberfläche und einen
Öffnungsabschnitt an einer oberen Oberfläche oder einer vorderen Oberfläche aufweist;
eine erste Lautsprechereinheit (210), die in dem Öffnungsabschnitt an der hinteren
Oberfläche bereitgestellt ist;
eine zweite Lautsprechereinheit (211C), die in dem Öffnungsabschnitt an der oberen
Oberfläche oder der vorderen Oberfläche bereitgestellt ist;
einen Verzögerungsabschnitt (231C), der angepasst ist, um Klänge, die von der zweiten
Lautsprechereinheit emittiert werden, zu verzögern; und
eine Kommunikationseinheit, die angepasst ist, um mit der Fernsteuerung zu kommunizieren,
wobei die Fernsteuerung beinhaltet:
eine Kommunikationseinheit, die angepasst ist, um mit der Lautsprechervorrichtung
zu kommunizieren;
ein Manipulationsempfangsmittel zum Empfangen einer Manipulation eines Nutzers durch
Anzeigen eines Manipulationsbildschirms, der Eingaben eines Installationsmodus, der
eine Anordnung des Gehäuses in Bezug auf eine Wand (80) oder eine Ecke (81) in Richtung
einer hinteren Oberfläche des Gehäuses angibt, und eines Abstands einer hinteren Oberfläche,
der einen Abstand zu der Wand oder der Ecke angibt, empfängt; und
ein Übertragungsmittel zum Übertragen des Installationsmodus und des Abstands der
hinteren Oberfläche, die von dem Manipulationsempfangsmittel eingegeben werden, an
die Lautsprechervorrichtung, und
wobei die Lautsprechervorrichtung beinhaltet:
ein Berechnungsmittel zum Berechnen einer Verzögerungszeit des Verzögerungsabschnitts
basierend auf dem Installationsmodus und dem Abstand der hinteren Oberfläche, die
von der Fernsteuerung empfangen werden; und
ein Einstellmittel zum Einstellen der Verzögerungszeit, die durch das Berechnungsmittel
berechnet wird, in den Verzögerungsabschnitt.
3. Tonwiedergabesystem, das eine Lautsprechervorrichtung (1) und eine Fernsteuerung beinhaltet,
wobei die Lautsprechervorrichtung beinhaltet:
ein Gehäuse (11), das einen Öffnungsabschnitt an einer hinteren Oberfläche und einen
Öffnungsabschnitt an einer oberen Oberfläche oder einer vorderen Oberfläche aufweist;
eine erste Lautsprechereinheit (210), die in dem Öffnungsabschnitt an der hinteren
Oberfläche bereitgestellt ist;
eine zweite Lautsprechereinheit (211C), die in dem Öffnungsabschnitt an der oberen
Oberfläche oder der vorderen Oberfläche bereitgestellt ist;
einen Verzögerungsabschnitt (231C), der angepasst ist, um Klänge, die von der zweiten
Lautsprechereinheit emittiert werden, zu verzögern; und
eine Kommunikationseinheit, die angepasst ist, um mit der Fernsteuerung zu kommunizieren,
wobei die Fernsteuerung beinhaltet:
eine Kommunikationseinheit, die angepasst ist, um mit der Lautsprechervorrichtung
zu kommunizieren;
ein Manipulationsempfangsmittel zum Empfangen einer Manipulation eines Nutzers durch
Anzeigen eines Manipulationsbildschirms, der Eingaben eines Installationsmodus, der
eine Anordnung des Gehäuses in Bezug auf eine Wand (80) oder eine Ecke (81) in Richtung
einer hinteren Oberfläche des Gehäuses angibt, und eines Abstands einer hinteren Oberfläche,
der einen Abstand zu der Wand oder der Ecke angibt, empfängt;
ein Berechnungsmittel zum Berechnen einer Verzögerungszeit des Verzögerungsabschnitts
basierend auf dem Installationsmodus und dem Abstand der hinteren Oberfläche, die
von dem Manipulationsempfangsmittel eingegeben werden; und
ein Übertragungsmittel zum Übertragen der Verzögerungszeit, die durch das Berechnungsmittel
berechnet wird, an die Lautsprechervorrichtung, und
wobei die Lautsprechervorrichtung ein Einstellmittel zum Einstellen der Verzögerungszeit,
die von der Fernsteuerung empfangen wird, in den Verzögerungsabschnitt beinhaltet.
4. Tonwiedergabesystem nach Anspruch 2 oder 3, wobei die Lautsprechervorrichtung weiter
beinhaltet:
ein Mitteltonbereichsfilter, das angepasst ist, um ein Signal einer Mitteltonbereichskomponente,
die eine menschliche Stimme beinhaltet, aus einem hörbaren Frequenzband eines Eingabeaudiosignals
zu extrahieren und das Signal der Mitteltonbereichskomponente der zweiten Lautsprechereinheit
zuzuführen;
ein Tieftonbereichsfilter und ein Hochtonbereichsfilter, die angepasst sind, um ein
Signal einer Tieftonbereichskomponente und ein Signal einer Hochtonbereichskomponente
außer dem Signal der Mitteltonbereichskomponente zu extrahieren und das Signal der
Tieftonbereichskomponente und das Signal der Hochtonbereichskomponente der ersten
Lautsprechereinheit zuzuführen; und
einen Equalizer, der angepasst ist, um unabhängig jeweilige Verstärkungen von Ausgabesignalen
des Tieftonbereichsfilters, des Mitteltonbereichsfilters und des Hochtonbereichsfilters
zu steuern.
5. Tonwiedergabesystem nach Anspruch 4, wobei
ein Mitteltonbereichslautsprecher, in dem Klangemissionseigenschaften des Tieftonbereichs
unterdrückt werden, als die zweite Lautsprechereinheit verwendet wird, und
das Mitteltonbereichsfilter ein Tiefpassfilter ist, das angepasst ist, um Signalkomponenten
des Mitteltonbereichs und eines tieferen Tonbereichs, der die Tieftonbereichskomponente
beinhaltet, zu extrahieren.
6. Tonwiedergabesystem nach Anspruch 4 oder 5, wobei
die Fernsteuerung weiter beinhaltet:
ein zweites Manipulationsempfangsmittel zum Empfangen einer Manipulation eines Nutzers
durch Anzeigen eines Manipulationsbildschirms, der eine Eingabe eines Typs der Wand
empfängt;
ein Verstärkungskorrekturmittel zum Korrigieren der Vielzahl von Verstärkungen des
Equalizers entsprechend dem Typ der Wand, der von dem zweiten Manipulationsempfangsmittel
eingegeben wird; und
ein zweites Übertragungsmittel zum Übertragen der korrigierten Verstärkung an die
Lautsprechervorrichtung, und
die Lautsprechervorrichtung die Verstärkung, die von der Fernsteuerung empfangen wird,
in den Equalizer einstellt.
7. Tonwiedergabesystem nach einem der Ansprüche 4 bis 6, wobei
der Manipulationsbildschirm der Fernsteuerung eine Vielzahl von Installationsmodi
anzeigt, die jeweils unterschiedliche Anordnungen des Gehäuses in Bezug auf die Wand
oder die Ecke in Richtung der hinteren Oberfläche des Gehäuses angeben, und das Manipulationsempfangsmittel
die Manipulation des Nutzers empfängt, der einen Installationsmodus aus der Vielzahl
von Installationsmodi auswählt.
8. Programm, das einen Computer eines Mobiltelefons (300), der imstande ist, mit einer
Lautsprechervorrichtung (1) zu kommunizieren, veranlasst, zu fungieren als:
ein Manipulationsempfangsmittel zum Empfangen einer Manipulation eines Nutzers durch
Anzeigen eines Manipulationsbildschirms, der Eingaben eines Installationsmodus, der
eine Anordnung eines Gehäuses der Lautsprechervorrichtung in Bezug auf eine Wand (80)
oder eine Ecke (81) in Richtung einer hinteren Oberfläche des Gehäuses angibt, und
eines Abstands einer hinteren Oberfläche, der einen Abstand zu der Wand oder der Ecke
angibt, empfängt; und
ein Übertragungsmittel zum Übertragen des Installationsmodus und des Abstands der
hinteren Oberfläche, die von dem Manipulationsempfangsmittel eingegeben werden, an
die Lautsprechervorrichtung.
9. Programm, das einen Computer eines Mobiltelefons (300), der imstande ist, mit einer
Lautsprechervorrichtung (1) zu kommunizieren, veranlasst, zu fungieren als:
ein Manipulationsempfangsmittel zum Empfangen einer Manipulation eines Nutzers durch
Anzeigen eines Manipulationsbildschirms, der Eingaben eines Installationsmodus, der
eine Anordnung eines Gehäuses der Lautsprechervorrichtung in Bezug auf eine Wand (80)
oder eine Ecke (81) in Richtung einer hinteren Oberfläche des Gehäuses angibt, und
eines Abstands einer hinteren Oberfläche, der einen Abstand zu der Wand oder der Ecke
angibt, empfängt;
ein Berechnungsmittel zum Berechnen einer Verzögerungszeit eines Verzögerungsabschnitts
der Lautsprechervorrichtung basierend auf dem Installationsmodus und dem Abstand der
hinteren Oberfläche, die von dem Manipulationsempfangsmittel eingegeben werden; und
Übertragungsmittel zum Übertragen der Verzögerungszeit, die durch das Berechnungsmittel
berechnet wird, an die Lautsprechervorrichtung.
10. Programm, das einen Computer eines Mobiltelefons (300), der imstande ist, mit einer
Lautsprechervorrichtung (1) zu kommunizieren, veranlasst, zu fungieren als:
ein Manipulationsempfangsmittel zum Empfangen einer Manipulation eines Nutzers durch
Anzeigen eines Manipulationsbildschirms, der Eingaben eines Installationsmodus, der
eine Anordnung eines Gehäuses der Lautsprechervorrichtung in Bezug auf eine Wand (80)
oder eine Ecke (81) in Richtung einer hinteren Oberfläche des Gehäuses angibt, und
eines Abstands einer hinteren Oberfläche, der einen Abstand zu der Wand oder der Ecke
angibt, empfängt;
ein Berechnungsmittel zum Berechnen einer Verzögerungszeit eines Verzögerungsabschnitts
der Lautsprechervorrichtung basierend auf dem Installationsmodus und dem Abstand der
hinteren Oberfläche, die von dem Manipulationsempfangsmittel eingegeben werden;
ein Übertragungsmittel zum Übertragen der Verzögerungszeit, die durch das Berechnungsmittel
berechnet wird, an die Lautsprechervorrichtung;
ein zweites Manipulationsempfangsmittel zum Empfangen einer Manipulation eines Nutzers
durch Anzeigen eines Manipulationsbildschirms, der eine Eingabe eines Typs der Wand
empfängt;
ein Verstärkungskorrekturmittel zum Korrigieren einer Verstärkung eines Equalizers
der Lautsprechervorrichtung entsprechend dem Typ der Wand, der von dem zweiten Manipulationsempfangsmittel
eingegeben wird; und
ein zweites Übertragungsmittel zum Übertragen der korrigierten Verstärkung an die
Lautsprechervorrichtung.
1. Dispositif de haut-parleur (1) comprenant :
un boîtier (11) présentant une section d'ouverture sur une surface arrière, et une
section d'ouverture sur une surface supérieure ou une surface avant ;
une première unité de haut-parleur (210) prévue dans la section d'ouverture sur la
surface arrière ;
une seconde unité de haut-parleur (211C) prévue dans la section d'ouverture sur la
surface supérieure ou la surface avant ;
une section de retard (231C) adaptée pour retarder des sons émis à partir de la seconde
unité de haut-parleur ;
un moyen de réception de manipulation permettant de recevoir des entrées d'utilisateur
d'un mode d'installation qui indique un agencement du boîtier par rapport à une paroi
(80) ou un coin (81) dans une direction de surface arrière du boîtier et d'une distance
de surface arrière qui est une distance jusqu'à la paroi ou au coin ;
un moyen de calcul permettant de calculer un temps de retard de la section de retard
sur la base du mode d'installation et de la distance de surface arrière entrés à partir
du moyen de réception de manipulation ; et
un moyen de réglage permettant de régler le temps de retard calculé par le moyen de
calcul dans la section de retard.
2. Système de reproduction audio qui inclut un dispositif de haut-parleur (1) et un dispositif
de commande à distance,
dans lequel le dispositif de haut-parleur inclut :
un boîtier (11) présentant une section d'ouverture sur une surface arrière, et une
section d'ouverture sur une surface supérieure ou une surface avant ;
une première unité de haut-parleur (210) prévue dans la section d'ouverture sur la
surface arrière ;
une seconde unité de haut-parleur (211C) prévue dans la section d'ouverture sur la
surface supérieure ou la surface avant ;
une section de retard (231C) adaptée pour retarder des sons émis à partir de la seconde
unité de haut-parleur ; et
une unité de communication adaptée pour communiquer avec le dispositif de commande
à distance,
dans lequel le dispositif de commande à distance inclut :
une unité de communication adaptée pour communiquer avec le dispositif de haut-parleur
;
un moyen de réception de manipulation permettant de recevoir une manipulation d'un
utilisateur en affichant un écran de manipulation qui reçoit des entrées d'un mode
d'installation indiquant un agencement du boîtier par rapport à une paroi (80) ou
un coin (81) dans une direction de surface arrière du boîtier, et d'une distance de
surface arrière indiquant une distance jusqu'à la paroi ou au coin ; et
un moyen de transmission permettant de transmettre le mode d'installation et la distance
de surface arrière entrés à partir du moyen de réception de manipulation au dispositif
de haut-parleur, et
dans lequel le dispositif de haut-parleur inclut :
un moyen de calcul permettant de calculer un temps de retard de la section de retard
sur la base du mode d'installation et de la distance de surface arrière reçus à partir
du dispositif de commande à distance ; et
un moyen de réglage permettant de régler le temps de retard calculé par le moyen de
calcul dans la section de retard.
3. Système de reproduction audio qui inclut un dispositif de haut-parleur (1) et un dispositif
de commande à distance,
dans lequel le dispositif de haut-parleur inclut :
un boîtier (11) présentant une section d'ouverture sur une surface arrière, et une
section d'ouverture sur une surface supérieure ou une surface avant ;
une première unité de haut-parleur (210) prévue dans la section d'ouverture sur la
surface arrière ;
une seconde unité de haut-parleur (211C) prévue dans la section d'ouverture sur la
surface supérieure ou la surface avant ;
une section de retard (231C) adaptée pour retarder des sons émis à partir de la seconde
unité de haut-parleur ; et
une unité de communication adaptée pour communiquer avec le dispositif de commande
à distance,
dans lequel le dispositif de commande à distance inclut :
une unité de communication adaptée pour communiquer avec le dispositif de haut-parleur
;
un moyen de réception de manipulation permettant de recevoir une manipulation d'un
utilisateur en affichant un écran de manipulation qui reçoit des entrées d'un mode
d'installation indiquant un agencement du boîtier par rapport à une paroi (80) ou
un coin (81) dans une direction de surface arrière du boîtier, et d'une distance de
surface arrière indiquant une distance jusqu'à la paroi ou au coin ;
un moyen de calcul permettant de calculer un temps de retard de la section de retard
sur la base du mode d'installation et de la distance de surface arrière entrés à partir
du moyen de réception de manipulation ; et
un moyen de transmission permettant de transmettre le temps de retard calculé par
le moyen de calcul au dispositif de haut-parleur, et
dans lequel le dispositif de haut-parleur inclut un moyen de réglage permettant de
régler le temps de retard reçu à partir du dispositif de commande à distance dans
la section de retard.
4. Système de reproduction audio selon la revendication 2 ou 3, dans lequel
le dispositif de haut-parleur inclut en outre :
un filtre de plage de tons intermédiaires adapté pour extraire un signal à composante
de plage de tons intermédiaires incluant une voix humaine d'une bande de fréquences
audibles d'un signal audio d'entrée, et pour fournir le signal à composante de plage
de tons intermédiaires à la seconde unité de haut-parleur ;
un filtre de plage de tons bas et un filtre de plage de tons élevés adaptés pour extraire
un signal à composante de plage de tons bas et un signal à composante de plage de
tons élevés autres que le signal à composante de plage de tons intermédiaires, et
pour fournir le signal à composante de plage de tons bas et le signal à composante
de plage de tons élevés à la première unité de haut-parleur ; et
un égaliseur adapté pour commander de manière indépendante des gains respectifs de
signaux de sortie du filtre de plage de tons bas, du filtre de plage de tons intermédiaires,
et du filtre de plage de tons élevés.
5. Système de reproduction audio selon la revendication 4, dans lequel
un haut-parleur à plage de tons intermédiaires, dans lequel des caractéristiques d'émission
sonore de la plage de tons bas sont supprimées, est utilisé comme seconde unité de
haut-parleur, et
le filtre de plage de tons intermédiaires est un filtre passe-bas adapté pour extraire
des composantes de signal de la plage de tons intermédiaires et d'une plage de tons
plus bas incluant la composante de plage de tons bas.
6. Système de reproduction audio selon la revendication 4 ou 5, dans lequel
le dispositif de commande à distance inclut en outre :
un second moyen de réception de manipulation permettant de recevoir une manipulation
d'un utilisateur en affichant un écran de manipulation qui reçoit une entrée d'un
type de la paroi ;
un moyen de correction de gain permettant de corriger la pluralité de gains de l'égaliseur
selon le type de la paroi entré par le second moyen de réception de manipulation ;
et
un second moyen de transmission permettant de transmettre le gain corrigé au dispositif
de haut-parleur, et
le dispositif de haut-parleur règle le gain reçu à partir du dispositif de commande
à distance dans l'égaliseur.
7. Système de reproduction audio selon l'une quelconque des revendications 4 à 6, dans
lequel
l'écran de manipulation du dispositif de commande à distance affiche une pluralité
de modes d'installation qui indiquent respectivement différents agencements du boîtier
par rapport à la paroi ou au coin dans la direction de surface arrière du boîtier,
et le moyen de réception de manipulation reçoit la manipulation de l'utilisateur sélectionnant
un mode d'installation parmi la pluralité de modes d'installation.
8. Programme amenant un ordinateur d'un téléphone mobile (300) capable de communiquer
avec un dispositif de haut-parleur (1) à fonctionner comme :
un moyen de réception de manipulation permettant de recevoir une manipulation d'un
utilisateur en affichant un écran de manipulation qui reçoit des entrées d'un mode
d'installation indiquant un agencement d'un boîtier du dispositif de haut-parleur
par rapport à une paroi (80) ou un coin (81) dans une direction de surface arrière
du boîtier, et d'une distance de surface arrière indiquant une distance jusqu'à la
paroi ou au coin ; et
un moyen de transmission permettant de transmettre le mode d'installation et la distance
de surface arrière entrés à partir du moyen de réception de manipulation au dispositif
de haut-parleur.
9. Programme amenant un ordinateur d'un téléphone mobile (300) capable de communiquer
avec un dispositif de haut-parleur (1) à fonctionner comme :
un moyen de réception de manipulation permettant de recevoir une manipulation d'un
utilisateur en affichant un écran de manipulation qui reçoit des entrées d'un mode
d'installation indiquant un agencement d'un boîtier du dispositif de haut-parleur
par rapport à une paroi (80) ou un coin (81) dans une direction de surface arrière
du boîtier, et d'une distance de surface arrière indiquant une distance jusqu'à la
paroi ou au coin ;
un moyen de calcul permettant de calculer un temps de retard d'une section de retard
du dispositif de haut-parleur sur la base du mode d'installation et de la distance
de surface arrière entrés à partir du moyen de réception de manipulation ; et
un moyen de transmission permettant de transmettre le temps de retard calculé par
le moyen de calcul au dispositif de haut-parleur.
10. Programme amenant un ordinateur d'un téléphone mobile (300) capable de communiquer
avec un dispositif de haut-parleur (1) à fonctionner comme :
un moyen de réception de manipulation permettant de recevoir une manipulation d'un
utilisateur en affichant un écran de manipulation qui reçoit des entrées d'un mode
d'installation indiquant un agencement d'un boîtier du dispositif de haut-parleur
par rapport à une paroi (80) ou un coin (81) dans une direction de surface arrière
du boîtier, et d'une distance de surface arrière indiquant une distance jusqu'à la
paroi ou au coin ;
un moyen de calcul permettant de calculer un temps de retard d'une section de retard
du dispositif de haut-parleur sur la base du mode d'installation et de la distance
de surface arrière entrés à partir du moyen de réception de manipulation ;
un moyen de transmission permettant de transmettre le temps de retard calculé par
le moyen de calcul au dispositif de haut-parleur ;
un second moyen de réception de manipulation permettant de recevoir une manipulation
d'un utilisateur en affichant un écran de manipulation qui reçoit une entrée d'un
type de la paroi ;
un moyen de correction de gain permettant de corriger un gain d'un égaliseur du dispositif
de haut-parleur selon le type de la paroi entré par le second moyen de réception de
manipulation ; et
un second moyen de transmission permettant de transmettre le gain corrigé au dispositif
de haut-parleur.