发明申请
US20120089389A1 Flexible and Scalable Combined Innovation Codebook for Use in CELP Coder and Decoder
有权
灵活可扩展的组合创新代码用于CELP编码器和解码器
- 专利标题： Flexible and Scalable Combined Innovation Codebook for Use in CELP Coder and Decoder
- 专利标题（中）： 灵活可扩展的组合创新代码用于CELP编码器和解码器
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申请号： US13083900申请日： 2011-04-11
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公开(公告)号： US20120089389A1公开(公告)日： 2012-04-12
- 发明人: Bruno Bessette
- 申请人： Bruno Bessette
- 主分类号： G10L19/12
- IPC分类号： G10L19/12
摘要：
In a CELP coder, a combined innovation codebook coding device comprises a pre-quantizer of a first, adaptive-codebook excitation residual, and a CELP innovation-codebook search module responsive to a second excitation residual produced from the first, adaptive-codebook excitation residual. In a CELP decoder, a combined innovation codebook comprises a de-quantizer of pre-quantized coding parameters into a first excitation contribution, and a CELP innovation-codebook structure responsive to CELP innovation-codebook parameters to produce a second excitation contribution.
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