Title :
Optimization of a two-sensor noise reduction technique
Author :
Ehrmann, Frédérique ; Le Bouquin-Jeannès, Régine ; Faucon, Géard
Author_Institution :
Lab. Traitement du Signal et de l´´Image, Rennes I Univ., France
fDate :
6/1/1995 12:00:00 AM
Abstract :
This letter deals with the problem of speech enhancement for mobile radio communications when two noisy observations are available. The basic idea consists of using the coherence function as a pertinent criterion to distinguish the useful signal from the disturbing noises when noises are decorrelated. There, we propose an optimization of a noise-reduction method based on the coherence function and compare the two methods objectively and by listening tests.<>
Keywords :
acoustic noise; interference suppression; land mobile radio; optimisation; radiofrequency interference; sensors; speech enhancement; coherence function; decorrelation; disturbing noises; listening tests; mobile radio communications; noisy observations; optimization; speech enhancement; two-sensor noise reduction technique; Additive noise; Distortion; Filtering; Land mobile radio; Microphones; Mobile communication; Noise reduction; Optimization methods; Speech enhancement; Testing;
Journal_Title :
Signal Processing Letters, IEEE
