Invention Grant
US08462970B2 Audio encoding and decoding method and associated audio encoder, audio decoder and computer programs
有权
音频编码和解码方法及相关音频编码器,音频解码器和计算机程序
- Patent Title: Audio encoding and decoding method and associated audio encoder, audio decoder and computer programs
- Patent Title (中): 音频编码和解码方法及相关音频编码器,音频解码器和计算机程序
-
Application No.: US12599519Application Date: 2008-04-16
-
Publication No.: US08462970B2Publication Date: 2013-06-11
- Inventor: Adil Mouhssine , Abdellatif Benjelloun Touimi
- Applicant: Adil Mouhssine , Abdellatif Benjelloun Touimi
- Applicant Address: FR Paris
- Assignee: France Telecom
- Current Assignee: France Telecom
- Current Assignee Address: FR Paris
- Agency: Drinker Biddle & Reath LLP
- Priority: FR0703347 20070510
- International Application: PCT/FR2008/050672 WO 20080416
- International Announcement: WO2008/145894 WO 20081204
- Main IPC: H04R25/00
- IPC: H04R25/00 ; H04B15/00

Abstract:
The invention relates to a method for ordering spectral parameters of ambisonic components to be encoded (A1, . . . , AQ) originating from an audio scene comprising N signals (Sii=1 to N), in which N>1, comprising the following steps: calculation of the respective influence of at least some spectral parameters, taken from a set of spectral parameters to be ordered, on an angle vector defined as a function of energy and velocity vectors associated with Gerzon's criteria and calculated as a function of a reverse ambisonic transformation in relation to said quantified ambisonic components; and allocation of a precedence order to at least one spectral parameter as a function of the influence calculated for said spectral parameter compared to the other calculated influences.
Public/Granted literature
- US20100198601A1 AUDIO ENCODING AND DECODING METHOD AND ASSOCIATED AUDIO ENCODER, AUDIO DECODER AND COMPUTER PROGRAMS Public/Granted day:2010-08-05
Information query