Invention Grant
US08321230B2 Method and device for the hierarchical coding of a source audio signal and corresponding decoding method and device, programs and signals
有权
用于源音频信号的分层编码的方法和装置以及相应的解码方法以及装置，程序和信号
- Patent Title: Method and device for the hierarchical coding of a source audio signal and corresponding decoding method and device, programs and signals
- Patent Title (中): 用于源音频信号的分层编码的方法和装置以及相应的解码方法以及装置，程序和信号
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Application No.: US12278547Application Date: 2007-02-05
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Publication No.: US08321230B2Publication Date: 2012-11-27
- Inventor: Pierrick Philippe , Patrice Collen , Christophe Veaux
- Applicant: Pierrick Philippe , Patrice Collen , Christophe Veaux
- Applicant Address: FR Paris
- Assignee: France Telecom
- Current Assignee: France Telecom
- Current Assignee Address: FR Paris
- Agency: Cozen O'Connor
- Priority: FR0601067 20060206
- International Application: PCT/FR2007/050751 WO 20070205
- International Announcement: WO2007/090988 WO 20070816
- Main IPC: G10L19/00
- IPC: G10L19/00
Abstract:
Hierarchical coding of a source audio signal in the form of a data stream including a base level and at least two hierarchical enhancement levels, each of the levels being organized in successive frames. At least one frame of at least one enhancement level has a duration less than the duration of at least one frame of the base level. At least one indication representative of an order used for a set of enhancement level frames corresponding to the duration of at least one frame of the base level is inserted into the data stream.
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