A Dualchannel Acoustic Echo Canceler on Windows Platform

Abstract

Abstract:

Abstract: A dualchannel acoustic echo cancellation (AEC) system on Windows platform is proposed. It involves a highspeed and high sampling rate audio I/O driver model, which can solve the realtime and synchronic audio processing problems through lowlevel interface. To reduce the transmission and computation loads, a resampling technique is used to adjust the sample rate during net transmission and realtime processing. Additionally, the interchannel decorrelation is implemented with frequencydomain resampling technique so as to improve the performance of echo cancellation. The experimental results verified the effectiveness of the proposed system.

Key words:

Key words: acoustic echo canceler, multithread, resample, decorrelation

CLC Number:

TP391

LIU Yang, FU Zhonghua, TANG Ling. A Dualchannel Acoustic Echo Canceler on Windows Platform[J]. Computer and Modernization, 2014, 0(4): 199-202.

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