Anti channel error code method of line spectrum pair parameter of voice coder |
Title： |
| Anti channel error code method of line spectrum pair parameter of voice coder |
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Application Number： |
200710062865 |
Application Date： |
2007/01/19 |
Announcement Date： |
2007/07/25 |
Pub. Date： |
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Publication Number： |
101004916 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G10L 19/00G10L 19/08G10L 19/14G10L 11/06G10L 13/00 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Tang Kun, Cui Huijuan, Peng Tan, Li Ye |
Key Words： |
Anti channel error code, line spectrum, parameter, voice coder |
Abstract： |
A parameter channel error code resisting method of vocoder line spectrum includes carrying out odd-even calibration on parameter and writing calibration bit into most non-important parameter bit of vocoder at coding end, picking light voiced sound parameters and integrating said parameters with maximum post verification probability algorithm to carry out recovery estimation for raising parameter recovery accuracy by line spectrum then picking line spectrum to make relevant odd-even calibration on parameters at decoding end. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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