Time-varying allpass filters using spectral-shaped noise for signal decorrelation in stereophonic acoustic echo cancellation
نویسندگان
چکیده
• This is a conference paper [ c © IEEE]. It is also available from: http://ieeexplore.ieee.org/servlet/opac?punumber=7978. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
منابع مشابه
Stereophonic acoustic echo cancellation system using time-varying all-pass filtering for signal decorrelation
This paper describes a novel technique for decorrelating the stereo signals in stereophonic acoustic echo cancellation (AEC) systems. At present, most teleconferencing systems use a single full-duplex audio channel for voice communications. However, in order to introduce spatial realism, future teleconferencing systems are expected to have more than one channel (at least stereo with two channel...
متن کاملA Spectral Dominance Decorrelation Met- Hod for Stereo Acoustic Echo Cancellation
In stereophonic acoustic echo cancellation, the two stereophonic channels are usually strongly correlated, which leads to non-unique solution of adaptive filters. Therefore, the filter misalignment gets large and the tracking capability is poor. In this paper, a novel decorrelation method based on psychoacoustic effect is proposed for stereo acoustic echo cancellation. Spectral dominance effect...
متن کاملChannel Decorrelation For Stereo Acoustic Echo Cancellation In High-Quality Audio Communication
In this paper, we address an important problem in high-quality audio communication systems. Acoustic echo cancellation with stereo signals is generally an under-determined problem because of the generally important correlation that exists between the left and right channels. In this paper, we present a novel method of significantly reducing that correlation without affecting the audio quality. ...
متن کاملStereophonic Acoustic Echo Cancellation: Theory and Implementation
The thesis treats theory and implementation aspects for stereophonic acoustic echo cancellation. In Paper I a complete implementation of a stereophonic acoustic echo canceler based on the two-channel fast recursive least-squares algorithm is presented. An analysis of the system calculation complexity is also given, in addition to simulation results on recorded real-life data. Paper II presents ...
متن کاملLow Complexity -nlms Algorithms and Subband Structures for Stereophonic Acoustic Echo Cancellation
FOR STEREOPHONIC ACOUSTIC ECHO CANCELLATION Tetsuya Hoya, Jonathon A. Chambers, and Patrick A. Naylor Communications and Signal Processing Group, Department of Electrical and Electronic Engineering, Imperial College of Science, Technology, and Medicine, University of London SW7 2BT, U.K. e-mail: [email protected] ABSTRACT One of the fundamental problems in Stereophonic Acoustic Echo Cancellation ...
متن کامل