发明名称 |
Method And Device For The Artificial Extension Of The Bandwidth Of Speech Signals |
摘要 |
A method for the artificial extension of the bandwidth of speech signals involves: a) Provision of a wideband input speech signal (s<SUB>wb</SUB><SUP>i</SUP>(k)); b) Determination of the signal components (s<SUB>eb</SUB>(k)) of the wideband input speech signal (s<SUB>wb</SUB><SUP>i</SUP>(k)) required for the bandwidth extension from an extension band from the wideband input speech signal (s<SUB>wb</SUB><SUP>i</SUP>(k)); c) Determination of the temporal envelopes of the signal components (s<SUB>eb</SUB>(k)) determined for the bandwidth extension; d) Determination of the spectral envelopes of the signal components (s<SUB>eb</SUB>(k)) determined for bandwidth extension; e) Encoding of the information for the temporal envelopes and the spectral envelopes, and provision of the encoded information by carrying out the extension of the bandwidth; f) Decoding of the encoded information and generation of the temporal envelopes and the spectral envelopes from the encoded information for the production of a bandwidth-extended output speech signal (s<SUB>wb</SUB><SUP>o</SUP>(k)).
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申请公布号 |
US2008126081(A1) |
申请公布日期 |
2008.05.29 |
申请号 |
US20060662592 |
申请日期 |
2006.06.30 |
申请人 |
SIEMANS AKTIENGESELLSCHAFT |
发明人 |
GEISER BERND;JAX PETER;SCHANDL STEFAN;TADDEI HERVE;TELLE AULIS;VARY PETER |
分类号 |
G10L19/00;G10L21/02;G10L21/038 |
主分类号 |
G10L19/00 |
代理机构 |
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主权项 |
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地址 |
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