发明名称 |
METHOD FOR PREDICTIVE-LINKED QUANTIZATION FOR SPLIT LSF VECTORS |
摘要 |
PURPOSE: A method for predictive-linked quantization for split LSF vectors is provided to realize a low mean SD(Spectral Distortion) and improve an outlier percentage. CONSTITUTION: A first quantizer(30) quantizes middle LSF(Line Spectrum Frequencies) vectors for generating the quantized middle LSF vectors and an index 1. A first classifier(32) inputs the first middle LSF vector for deciding an appropriate codebook out of three COLs. A second classifier(34) inputs the first middle LSF vector for deciding an appropriate codebook out of three COUs. A second quantizer(36) encodes lower LSF vectors by using the codebook decided by the first classifier for generating an index 2. A third quantizer(38) encodes upper LSFs by using the codebook decided by the second classifier for generating an index 3.
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申请公布号 |
KR100389897(B1) |
申请公布日期 |
2003.06.20 |
申请号 |
KR19960051445 |
申请日期 |
1996.10.31 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM, MU YEONG;CHO, YONG DEOK;KIM, HONG GUK |
分类号 |
G10L19/04;G10L19/038;(IPC1-7):G10L19/00 |
主分类号 |
G10L19/04 |
代理机构 |
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代理人 |
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地址 |
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