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An Efficient Algorithm to Estimate the Instantaneous SNR of Speech Signals

Authors:
Martin, R.
Book Title:
Proceedings of European Conference on Speech Communication and Technology (EUROSPEECH)
Organization:
ESCA
Pages:
p.p. 1093-1096
Address:
Berlin, Germany
Date:
Sep. 1993
Language:
English

Abstract

This contribution presents an efficient algorithm to estimate the instantaneous signal-to-noise ratio of speech signals. The algorithm is capable to track non stationary noise signals and has a low computational complexity. It does not need a speech activity detector nor histograms to learn signal statistics. The algorithm is based on the observation that a noise power estimate can be obtained using minimum values of a smoothed power estimate. This paper will present this algorithm, its performance, its limits, and some applications.

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