METHOD AND APPARATUS FOR REDUCING ECHO IN A COMMUNICATION SYSTEM
摘要
<p>A method and apparatus for reducing echo in a communication system are provided. A first signal including a voice component associated to a speaker is received. The first signal is processed to derive a harmonic feature of the voice component. A second signal including an echo component correlated to the first signal is also received. The second signal is processed at least in part on the basis of the harmonic feature of the voice component to remove at least in part the echo component such as to derive an echo reduced signal. The echo reduced signal is then released. In specific implementations, the harmonic feature of the voice component is an estimate of the pitch associated to the voice component.</p>
申请公布号
WO2005050622(A1)
申请公布日期
2005.06.02
申请号
WO2004CA01985
申请日期
2004.11.18
申请人
OCTASIC INC.;AWAD, THOMAS JEFFERSON;LAURENCE, MARTIN;GERVAIS, PASCAL MARCEL
发明人
AWAD, THOMAS JEFFERSON;LAURENCE, MARTIN;GERVAIS, PASCAL MARCEL