Development of Real-Time Adaptive Noise Canceller and Echo Canceller
نویسندگان
چکیده
منابع مشابه
Post-processing for Noise and Echo Canceller Using Adaptive Filter
A new post-processing method for acoustic echo canceler is proposed to reduce the residual echo and ambient noise. The method is based on the correlation of the desired signal and the estimation error signal of adaptive filter. The residual echoes are attenuated as proportional to the correlation of the desired signal and estimation error signal plays a role as Wiener filter for residual echo. ...
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| Acoustic echo cancellation is an essential signal enhancement tool for teleconferencing applications such as hands-free telephony, tele-classing and video-conferencing. However, loudspeaker signals are picked up by a microphone and are fed back to the correspondent, resulting in an unde-sired echo. Nowadays, adaptive ltering techniques are typically employed to suppress this echo. In acoustic...
متن کاملReal-Time Implementation of an Acoustic Echo Canceller
Acoustic echo cancellation is an essential signal enhancement tool in hands-free communication. Loudspeaker signals are picked up by a microphone and are fed back to the correspondent, resulting in an undesired echo. Nowadays, adaptive filtering techniques are typically employed to suppress this echo. In acoustic applications long filters need to be adapted for sufficient echo suppression. Clas...
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ژورنال
عنوان ژورنال: GSTF Journal of Engineering Technology
سال: 2014
ISSN: 2251-3701,2251-371X
DOI: 10.5176/2251-3701_2.4.96