发明名称 |
Method and device for the spectral reconstruction of an audio signal |
摘要 |
The method involves coding a part of a frequency spectrum of an audio signal with a core coder. A complementary part of the frequency spectrum of the audio signal is coded with an extension coder. A part of the spectrum coded with the core encoder is also encoded with the extension encoder. A cut-off frequency of the core coder is determined and is transferred with a coded digital signal on a network. Independent claims are also included for the following: (a) a method of spectral reconstruction of a coded audio signal (b) a device for coding an audio signal (c) a device for spectral reconstruction of a coded audio signal (d) a data signal representing a coded audio signal (e) a computer program stored on a computer medium comprising instruction enabling to implement coding method (f) a computer program stored on a computer medium comprising instruction enabling to implement a spectral reconstruction method. |
申请公布号 |
EP1599868(A1) |
申请公布日期 |
2005.11.30 |
申请号 |
EP20040716626 |
申请日期 |
2004.03.03 |
申请人 |
FRANCE TELECOM |
发明人 |
PHILIPPE, PIERRICK;RAULT, JEAN-BERNARD |
分类号 |
G10L19/005;G10L19/02;G10L19/24;(IPC1-7):G10L19/02;G10L19/14 |
主分类号 |
G10L19/005 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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