EP 1836699 B1 20110629 - Method and device for carrying out optimized audio coding between two long-term prediction models
Title (en)
Method and device for carrying out optimized audio coding between two long-term prediction models
Title (de)
Verfahren und Vorrichtung zur Ausführung einer optimalizierten Audiokodierung zwischen zwei Langzeitvorhersagemodellen
Title (fr)
Procédé et dispositif de codage audio optimisé entre deux modèles de prediction à long terme
Publication
Application
Priority
- FR 2006000038 W 20060109
- FR 0500272 A 20050111
Abstract (en)
[origin: WO2006075078A1] The invention relates to a method for coding according to a second format from items of information obtained by using a coding according to a first format. These first and second formats use, particularly for coding a speech signal, a search for long-term prediction parameters LTP by searching a dictionary containing candidate parameters. The method comprises the following steps: a) defining (25b) the orderings of a dictionary (25) that uses the second coding format; b) retrieving (23) an item of a priori information obtained following the determination of the parameters LTP during the coding according to the first format for selecting (26) an ordering of said dictionary; c) applying (27) the selected ordering to the candidates of the dictionary for choosing (29) a limited number of first candidates, and; d) for carrying out the second coding, carrying out the LTP search solely among this limited number of candidates (30).
IPC 8 full level
G10L 19/08 (2006.01); G10L 19/16 (2013.01)
CPC (source: EP US)
G10L 19/08 (2013.01 - EP US); G10L 19/173 (2013.01 - EP US)
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 2880724 A1 20060714; AT E515019 T1 20110715; CN 101124625 A 20080213; CN 101124625 B 20120229; EP 1836699 A1 20070926; EP 1836699 B1 20110629; US 2008306732 A1 20081211; US 8670982 B2 20140311; WO 2006075078 A1 20060720
DOCDB simple family (application)
FR 0500272 A 20050111; AT 06709052 T 20060109; CN 200680003179 A 20060109; EP 06709052 A 20060109; FR 2006000038 W 20060109; US 79508506 A 20060109