发明名称 |
Interchangeable noise feedback coding and code excited linear prediction encoders |
摘要 |
A system and method for encoding and decoding speech signals that includes a specially-designed Code Excited Linear Prediction (CELP) encoder and a vector quantization (VQ) based Noise Feedback Coding (NFC) decoder or that includes a specially-designed VQ-based NFC encoder and a CELP decoder. The VQ based NFC decoder may be a VQ based two-stage NFC (TSNFC) decoder. The specially-designed VQ-based NFC encoder may be a specially-designed VQ based TSNFC encoder. In each system, the encoder receives an input speech signal and encodes it to generate an encoded bit stream. The decoder receives the encoded bit stream and decodes it to generate an output speech signal. A system and method is also described in which a single decoder receives and decodes both CELP-encoded audio signals as well as VQ-based NFC-encoded audio signals. |
申请公布号 |
US8335684(B2) |
申请公布日期 |
2012.12.18 |
申请号 |
US20070773039 |
申请日期 |
2007.07.03 |
申请人 |
THYSSEN JES;CHEN JUIN-HWEY;BROADCOM CORPORATION |
发明人 |
THYSSEN JES;CHEN JUIN-HWEY |
分类号 |
G10L19/12 |
主分类号 |
G10L19/12 |
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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