Robust Noise Reduction and Echo Cancellation
نویسندگان
چکیده
منابع مشابه
Robust Early Echo Cancellation and Late Echo Suppression in the Stft Domain
Acoustic echo arises due to acoustic coupling between the loudspeaker and the microphone of a communication device. Acoustic echo cancellation and suppression techniques are used to reduce the acoustic echo. In this work we propose to first cancel the early echo, which is related to the early part of the echo path, and subsequently suppress the late echo, which is related to the later part of t...
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A novel adaptive echo cancellation scheme, using an accurate and reliable two-stage identification scheme and an adaptive Kalman filter (KF), is proposed. The novel scheme estimates a desired waveform from the received signal which is corrupted by an undesired echo and noise. It is assumed that the desired waveform and the echo are uncorrelated with each other, and that the reference waveform i...
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A new acoustic echo cancellation method for noisy environment is proposed and a real-time system is built. Different from the conventional acoustic echo cancellers, the proposed has a novel structure and can remove the echo effectively at low SNR. In our system, the speech with stationary noise is processed in order to separate the echo from the noise before updating the adaptive filter which i...
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