发明名称 |
Scalable coder and decoder performing amplitude flattening for error spectrum estimation |
摘要 |
A down-sampler 101 down-samples the sampling rate of an input signal from sampling rate FH to sampling rate FL. A base layer coder 102 encodes the sampling rate FL acoustic signal. A local decoder 103 decodes coding information output from base layer coder 102. An up-sampler 104 raises the sampling rate of the decoded signal to FH. A subtracter 106 subtracts the decoded signal from the sampling rate FH acoustic signal. An enhancement layer coder 107 encodes the signal output from subtracter 106 using a decoding result parameter output from local decoder 103.
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申请公布号 |
US7752052(B2) |
申请公布日期 |
2010.07.06 |
申请号 |
US20040512407 |
申请日期 |
2004.10.25 |
申请人 |
PANASONIC CORPORATION |
发明人 |
OSHIKIRI MASAHIRO |
分类号 |
G10L19/00;G10L11/06;G10L19/02;G10L19/14;G10L19/24;H04N11/02 |
主分类号 |
G10L19/00 |
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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