EP 1933596 A4 20080910 - MULTI-CHANNEL AUDIO SIGNAL CORRECTION DEVICE
Title (en)
MULTI-CHANNEL AUDIO SIGNAL CORRECTION DEVICE
Title (de)
MEHRKANAL-AUDIOSIGNAL-KORREKTUREINRICHTUNG
Title (fr)
DISPOSITIF DE CORRECTION DE SIGNAL AUDIO MULTICANAL
Publication
Application
Priority
- JP 2006316556 W 20060824
- JP 2005253679 A 20050901
Abstract (en)
[origin: EP1933596A1] The present invention provides a multi-channel audio signal correction capable of preventing an increase in the number of steps for installing a speaker or/and an amplifier, which is/are connected to a multi-channel audio reproduction apparatus. The multi-channel audio signal correction device 3 transmits a predetermined measurement signal to a speaker module 2 connected through a network 4 to the multi-channel audio signal correction device 3 and receives a sound output from the speaker module 2. The multi-channel audio signal correction device 3 measures a propagation delay time of each of the received sounds and estimates the position of a speaker 21 provided in the target speaker module 2, in accordance with each of the measured propagation delay times. The multi-channel audio signal correction device 3 assigns an output channel to the target speaker module 2 in accordance with the estimated position of the speaker 21. The multi-channel audio signal correction device 3 generates a correction value used to correct an output of the target speaker module 2 and transmits the correction value to the target speaker module 2.
IPC 8 full level
H04S 5/02 (2006.01)
CPC (source: EP)
H04S 7/301 (2013.01); H04R 5/027 (2013.01)
Citation (search report)
- [Y] JP 2000354300 A 20001219 - ACCUPHASE LAB
- [Y] JP 2001025085 A 20010126 - TOSHIBA CORP
- [A] JP H08179786 A 19960712 - ONKYO KK
- [A] JP H10248098 A 19980914 - SONY CORP
- See references of WO 2007029507A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1933596 A1 20080618; EP 1933596 A4 20080910; CN 101263743 A 20080910; JP 2007068021 A 20070315; WO 2007029507 A1 20070315
DOCDB simple family (application)
EP 06782960 A 20060824; CN 200680033465 A 20060824; JP 2005253679 A 20050901; JP 2006316556 W 20060824