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Performance Analysis of Cross-band Adaptation for Subband Acoustic Echo Cancellation
- Author(s)
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- Yekutiel Avargel, (Department of Electrical Engineering, Technion)
- Israel Cohen, (Department of Electrical Engineering, Technion)
- Topics
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- Adaptive filtering algorithms and structures for echo and noise control
- Multirate filter banks and subband systems
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Abstract
In this paper, we analyze the performance of cross-band adaptation in the short-time Fourier transform (STFT) domain for the application of acoustic echo cancellation. The band-to-band filters and the cross-band filters considered in each frequency-band are all estimated by adaptive filters, which are updated by the LMS algorithm. We derive explicit expressions for the transient and steady-state mean-square error (MSE) in subbands for both correlated and white Gaussian processes.
The theoretical analysis is supported by experimental results.
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