发明名称 |
Scalable Encoding Apparatus and Scalable Encoding Method |
摘要 |
A scalable encoding apparatus wherein stereo audio signals can be scalable encoded by use of a CELP encoding to improve the encoding efficiency. In the apparatus, an adder and a multiplier obtain an average of first and second channel signals as a monophonic signal. A CELP encoding part performs a CELP encoding of the monophonic signal. A first channel difference information encoding part performs an encoding of the first channel signal in conformance with the CELP encoding and obtains a difference between a resulting encoded parameter and an encoded parameter outputted from the CELP encoding part. The first channel difference information encoding part then encodes this difference and outputs the resulting encoded parameter.
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申请公布号 |
US2008255832(A1) |
申请公布日期 |
2008.10.16 |
申请号 |
US20050576004 |
申请日期 |
2005.09.26 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
GOTO MICHIYO;YOSHIDA KOJI |
分类号 |
G10L21/00 |
主分类号 |
G10L21/00 |
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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