Publications-Detail
On the Problem of Acoustic Echo Control in Cellular Networks
- Authors:
- Enzner, G. , Krüger, H. , Vary, P.
- Book Title:
- Proceedings of International Workshop on Acoustic Echo and Noise Control (IWAENC)
- Address:
- Eindhoven, The Netherlands
- Date:
- Sep. 2005
- Language:
- English
Abstract
If acoustic echo cancelers are implemented in cellular networks, e.g., in base stations, the echo attenuation is severely degraded by the nonlinearity and/or unpredictability of the effective echo path. In this contribution, we consider a network model (or rather echo path model) which takes the statistical behavior of speech encoders into account if contained in the echo path. Using this model, we show that the optimum filter structure of network acoustic echo controllers can be derived from the theory of combined acoustic echo and noise control for hands-free telephones.Download
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