Multi-Microphone Noise Reduction - Theoretical Optimum and Practical Realization

Authors:

Abstract:

In speech processing systems with large speaker to microphone distance such as hearing aids or hands-free telephony the recorded speech signal is often heavily corrupted by additive acoustic background noise. Microphone arrays can significantly improve the received speech quality by extracting the desired speech source and suppressing disturbing bachground noise and reverberation. High performance array processing algorithms exploit the spatial characteristics of the sound field as well as the time and frequency dependent SNR.

Document type:

Conference Paper

Publication:

Aachen, Germany, 18. - 20. March 2003

Conference:

29. Jahrestagung fuer Akustik (DAGA 03)

Index:

211

Files:

Paper