Anti-channel error code protection method for 1.2kb/s SELP low-speed sound coder |
Title: |
Anti-channel error code protection method for 1.2kb/s SELP low-speed sound coder |
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Application Number: |
200710063062 |
Application Date: |
2007/01/26 |
Announcement Date: |
2007/08/01 |
Pub. Date: |
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Publication Number: |
101009097 |
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 19/14G10L 19/12G10L 13/00G10L 11/06G10L 21/02 |
Applicant(s): |
Tsinghua University |
Inventor(s): |
Tang Kun, Cui Huijuan, Peng Tan, Gong Chen, Li Ye, Hong Kan |
Key Words: |
Anti-channel error code, low-speed, sound coder |
Abstract: |
This invention relates to low speed rate sound anti-error coding technique, which is characterized by the following steps: re-aligning weight and labeling distance on blur parameters on coding on edit end adopting two sets of BCH codes and odd and even test to protect blur sound and its parameters on decode end according to signal channel property by use of branch to determine blur sound by use of maximum test possibility for clear sound by use of BCH codes to restore relative parameters to decode out spectrum to restore anti-error code formula. |
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