发明授权
US08260621B2 Speech coding method and apparatus for coding an input speech signal based on whether the input speech signal is wideband or narrowband
有权
基于输入语音信号是宽带还是窄带来编码输入语音信号的语音编码方法和装置
- 专利标题： Speech coding method and apparatus for coding an input speech signal based on whether the input speech signal is wideband or narrowband
- 专利标题（中）： 基于输入语音信号是宽带还是窄带来编码输入语音信号的语音编码方法和装置
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申请号： US12751421申请日： 2010-03-31
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公开(公告)号： US08260621B2公开(公告)日： 2012-09-04
- 发明人: Kimio Miseki
- 申请人： Kimio Miseki
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- 优先权： JP2003-101422 20030404; JP2004-071740 20040312
- 主分类号： G10L19/00
- IPC分类号： G10L19/00 ; G10L19/10
摘要：
A wideband speech coding apparatus comprises a wideband speech coding unit configured to code an input speech signal at a bit rate which is set in advance in accordance with a wideband speech signal. The apparatus further comprises an identification unit configured to identify whether the input speech signal is a wideband speech signal or a narrowband speech signal. The apparatus further comprises a control unit configured to cause the wideband speech coding unit to code the input speech signal, when the identification unit identifies that the input speech signal is the wideband speech signal, and to cause the wideband speech coding unit to raise the bit rate to code the input speech signal, when the identification unit identifies that the input speech signal is the narrowband speech signal. The apparatus further comprises an output unit to output the input speech signal coded by the wideband speech coding unit.
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