EP 2360684 A1 20110824 - AUDIO REPRODUCING DEVICE AND AUDIO REPRODUCING METHOD
Title (en)
AUDIO REPRODUCING DEVICE AND AUDIO REPRODUCING METHOD
Title (de)
AUDIOABSPIELVORRICHTUNG UND AUDIOABSPIELVERFAHREN
Title (fr)
DISPOSITIF ET PROCÉDÉ DE LECTURE AUDIO
Publication
Application
Priority
- JP 2009005311 W 20091013
- JP 2008298809 A 20081121
Abstract (en)
This invention prevents occurrence of abnormal sounds without significantly increasing calculation amount even for multi-channel signals. An audio reproducing device (100) decodes and reproduces a stream including basic codec. The audio reproducing device (100) includes: a stream separating unit (101) which separates the stream into basic codec and bandwidth extension data; a basic codec analyzing unit (102) which analyzes the basic codec; a basic codec decoding unit (103) which decodes the basic codec in accordance with basic codec analysis information; a bandwidth extension data analyzing unit (104) which analyzes bandwidth extension data; a first bandwidth extension processing unit (106) which extends a decoded basic codec signal by using the bandwidth extension information; a second bandwidth extension processing unit (107) which extends a decoded basic codec signal by using the bandwidth extension information with an accuracy higher than an accuracy of the first bandwidth extension processing unit (106); and a switching unit (109) which switches between the first bandwidth extension processing unit (106) and the second bandwidth extension processing unit (107) based on the basic codec analysis information.
IPC 8 full level
G10L 19/02 (2013.01); G10L 21/038 (2013.01); G10L 19/24 (2013.01)
CPC (source: EP)
G10L 19/24 (2013.01); G10L 21/038 (2013.01); G10L 19/005 (2013.01); G10L 19/008 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2010058518 A1 20100527; BR PI0921067 A2 20151215; BR PI0921067 B1 20200218; EP 2360684 A1 20110824; EP 2360684 A4 20120912; EP 2360684 B1 20130529; EP 2610867 A1 20130703; EP 2610867 B1 20150311; JP 2010122640 A 20100603; JP 5629429 B2 20141119
DOCDB simple family (application)
JP 2009005311 W 20091013; BR PI0921067 A 20091013; EP 09827300 A 20091013; EP 13161700 A 20091013; JP 2008298809 A 20081121