EP 1989705 B1 20120815 - METHOD FOR LIMITING ADAPTIVE EXCITATION GAIN IN AN AUDIO DECODER
Title (en)
METHOD FOR LIMITING ADAPTIVE EXCITATION GAIN IN AN AUDIO DECODER
Title (de)
VERFAHREN ZUR BEGRENZUNG DER ADAPTIVEN ERREGUNGSVERSTÄRKUNG BEI EINEM AUIDODECODER
Title (fr)
PROCEDE DE LIMITATION DE GAIN D'EXCITATION ADAPTATIVE DANS UN DECODEUR AUDIO
Publication
Application
Priority
- FR 2007050779 W 20070213
- FR 0650688 A 20060228
Abstract (en)
[origin: FR2897977A1] The method involves establishing an error indication function that provides values representing error accumulated on an adaptive excitation, during decoding, following loss of a transmission frame, where an arbitrary value is assigned to an adaptive excitation gain for the lost frame. Values of the error indication function are calculated during decoding. An error indication parameter is calculated from the calculated values of the function. The parameter is compared to a given threshold. A limitation is applied to the excitation gain if the excitation gain is greater than a given value. Independent claims are also included for the following: (1) a computer program comprising instructions stored on a computer readable medium for implementing stages of a method for limiting an adaptive excitation gain in a coded audio signal decoder (2) a decoder for an audio signal coded by an encoder.
IPC 8 full level
G10L 19/00 (2006.01); G10L 19/005 (2013.01); G10L 19/08 (2006.01); G10L 19/083 (2013.01)
CPC (source: EP KR US)
G10L 19/005 (2013.01 - EP US); G10L 19/08 (2013.01 - KR); G10L 19/083 (2013.01 - EP KR US); G10L 19/12 (2013.01 - KR)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2897977 A1 20070831; CN 101395659 A 20090325; CN 101395659 B 20121107; EP 1989705 A2 20081112; EP 1989705 B1 20120815; JP 2009528563 A 20090806; JP 4988774 B2 20120801; KR 101372460 B1 20140311; KR 20080102262 A 20081124; US 2009204412 A1 20090813; US 8180632 B2 20120515; WO 2007099244 A2 20070907; WO 2007099244 A3 20071025
DOCDB simple family (application)
FR 0650688 A 20060228; CN 200780007107 A 20070213; EP 07731604 A 20070213; FR 2007050779 W 20070213; JP 2008556824 A 20070213; KR 20087023810 A 20070213; US 22456607 A 20070213