| 发明名称 |
Method for encoding and decoding audio at a variable rate |
| 摘要 |
A maximum of Nmax bits for encoding is defined for a set of parameters which may be calculated from a signal frame. The parameters for a first sub-set are calculated and encoded with N0 bits, where N0<Nmax. The allocation of Nmax-N0 encoding bits for the parameters of a second sub-set are determined and the encoding bits allocated to the parameters for the second sub-set are classified. The allocation and/or order of classification of the encoding bits are determined as a function of the encoding parameters for the first sub-set. For a total of N available bits for the encoding of the total parameters (N0<N=Nmax), the parameters for the second sub-set allocated the N-N0 encoding bits classified the first in said order are selected. Said selected parameters are calculated and encoded to give the N-N0 bits. The N0 encoding bits for the first sub-set and the N-N0 encoding bits for the selected parameters for the second sub-set are finally introduced into the output sequence of the encoder.
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| 申请公布号 |
US2006036435(A1) |
申请公布日期 |
2006.02.16 |
| 申请号 |
US20050541340 |
申请日期 |
2005.07.01 |
| 申请人 |
FRANCE TELECOM |
发明人 |
KOVESI BALAZS;MASSALOUX DOMINIQUE |
| 分类号 |
G10L21/00;G10L19/00;G10L19/002;G10L19/14;G10L19/18 |
主分类号 |
G10L21/00 |
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