发明名称 |
Coding of acoustic waveforms |
摘要 |
Encoding techniques and devices are based on a sinusoidal speech representation model. In one aspect of the invention, a pitch-adaptive channel encoding technique for amplitude coding varies the channel spacing in accordance with the pitch of the speaker's voice. In another aspect of the invention, a phase synthesis technique locks rapidly-varying phases into synchrony with the phase of the fundamental. Phase coding techniques which introduce a voice-dependent random phase and a pitch-adaptive quadratic phase dispersion are also performed. |
申请公布号 |
US5054072(A) |
申请公布日期 |
1991.10.01 |
申请号 |
US19890456183 |
申请日期 |
1989.12.15 |
申请人 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
MCAULAY, ROBERT J.;QUATIERI, JR., THOMAS F. |
分类号 |
G10L19/02 |
主分类号 |
G10L19/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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