发明名称 |
REGENERATION OF WIDEBAND SPEECH |
摘要 |
<p>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.</p> |
申请公布号 |
EP2374126(B1) |
申请公布日期 |
2013.03.27 |
申请号 |
EP20090799076 |
申请日期 |
2009.12.10 |
申请人 |
SKYPE |
发明人 |
ANDERSEN, SOREN VANG;NILSSON, MATTIAS |
分类号 |
G10L21/02 |
主分类号 |
G10L21/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|