发明授权
- 专利标题: Transmitter with an improved harmonic speech encoder
- 专利标题(中): 具有改进的谐波语音编码器的发射机
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申请号: US114749申请日: 1998-07-13
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公开(公告)号: US6078879A公开(公告)日: 2000-06-20
- 发明人: Rakesh Taori , Robert J. Sluijter , Andreas J. Gerrits
- 申请人: Rakesh Taori , Robert J. Sluijter , Andreas J. Gerrits
- 申请人地址: NY New York
- 专利权人: U.S. Philips Corporation
- 当前专利权人: U.S. Philips Corporation
- 当前专利权人地址: NY New York
- 优先权: EPX97202163 19970711
- 主分类号: G10L25/12
- IPC分类号: G10L25/12 ; G10L19/04 ; G10L19/10 ; G10L21/02 ; G10L25/90 ; G10L19/00 ; G10L19/08
摘要:
In a harmonic speech encoder (16) a speech signal to be encoded is represented by a plurality of LPC parameters which are determined by a LPC parameter computer (30), a pitch value and a gain value. The speech encoder comprises a (coarse) pitch estimator (38) for determining a coarse pitch, and a refined pitch computer (32) to determine a refined pitch from the coarse pitch value. The refined pitch value is determined in an analysis by synthesis way, in which a refined pitch value is selected which results in a minimum error measure between a representation of a synthesized speech signal and a representation of the original speech signal.
公开/授权文献
- USD431829S Camera 公开/授权日:2000-10-10
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