发明名称 |
Regeneration of wideband speech |
摘要 |
A system and method for processing a narrowband speech signal comprising speech samples in a first range of frequencies. the method comprises: generating from the narrowband speech signal a highband speech signal in a second range of frequencies above the first range of frequencies; determining a pitch of the highband speech signal; using the pitch to generate a pitch-dependent tonality measure from samples of the highband speech signal; and filtering the speech samples using a gain factor derived from the tonality measure and selected to reduce the amplitude of harmonics in the highband speech signal.
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申请公布号 |
US8332210(B2) |
申请公布日期 |
2012.12.11 |
申请号 |
US20090456012 |
申请日期 |
2009.06.10 |
申请人 |
NILSSON MATTIAS;ANDERSEN SOREN VANG;SKYPE |
发明人 |
NILSSON MATTIAS;ANDERSEN SOREN VANG |
分类号 |
G10L11/00;G06F15/00;G10L11/04;G10L19/00;G10L19/14;G10L21/02;G10L21/038 |
主分类号 |
G10L11/00 |
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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