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Convention Paper

Single Channel Noise Reduction for Hands Free Operation in Automotive Environments

Authors: Schmitt, Stefan; Sandrock, Malte; Cronemeyer, Jochen

AES Convention 112 · Paper 5543 · April 2002

Abstract

The objective of this work is to establish a single channel noise reduction algorithm for speech enhancement integrated in DSP systems. The main emphasis is on spectral subtraction. The chosen algorithm is based on a Minimum Mean Square Error Log Spectral Amplitude (MMSE-LSA) approach. One of the crucial tasks for good results, i.e. natural and intelligible speech in combination with well attenuated noise and low spectral distortion, is a balanced estimation and weighting of the noise magnitude spectrum.

Details

Published in
AES Convention 112
AES Convention
112
Paper number
5543
Publication date
April 6, 2002
Session subject
Automotive Audio
Affiliation
DSPecialists GmbH, Berlin, Germany (See document for exact affiliation information.)
Type
Convention Paper