Abstract
Most teleconferencing conversations are conducted in the presence of Acoustic echoes. Typically, an adaptive filter is used to cancel the echo, with a control device called the doubletalk detector which controls the adaptation. We derive a novel test statistic for the doubletalk detection based on the cross-correlation between the microphone signal and the cancellation error for the frequency domain adaptive algorithm. the main advantage of the proposed algorithm is its simplicity and computational efficiency. We compare our results with the normalized cross-correlation based doubletalk detector proposed in [2]. We also generalize the idea of the proposed doubletalk detector (single channel) to the matrix case (multi-channel). © 2009 IEEE.
Recommended Citation
M. A. Iqbal et al., "A Frequency Domain Doubletalk Detector based on Cross-correlation and Extension to Multi-channel Case," Conference Record - Asilomar Conference on Signals, Systems and Computers, pp. 638 - 641, article no. 5469918, Institute of Electrical and Electronics Engineers, Dec 2009.
The definitive version is available at https://doi.org/10.1109/ACSSC.2009.5469918
Department(s)
Electrical and Computer Engineering
International Standard Book Number (ISBN)
978-142445827-1
International Standard Serial Number (ISSN)
1058-6393
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Dec 2009
