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This paper proposes a dereverberation method that delivers clear sound even in reverberant environments and discuss its implementation in a hands-free audio conferencing prototype unit. The proposed method is a cost-effective single-channel algorithm; it estimates a power spectrum of reverberation based on a linear regression model in the power spectral domain and suppresses the reverberation components...
An acoustic echo cancellation (AEC) method developed for voice over IP (VoIP) hands-free applications is proposed. This method can effectively reduce undesired acoustic echo arriving at a microphone from a loudspeaker and emphasize the target talker???s voice when near-end and far-end talkers speak simultaneously (i.e. double-talk), irrespective of smartphone/tablet device models. This method mainly...
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