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Convention Paper

Voiced/Unvoiced/Silence Classification of Noisy Speech in Real Time Audio Signal Processing

Authors: Cao, Yuchang; Sridharan, Sridha; Moody, Miles

AES Convention 5r · Paper 4045 · March 1995

Abstract

The classification of noisy speech signal into voiced, unvoiced, and silence provides a preliminary acoustic segmentation for audio signal processing applications, such as digital coding, speech enhancement, and identification. The proposed technique employs a two-staged structure and uses the normalized segmental energy, normalized partial sum of autocorrelation coefficients, and spectral envelope pattern matching as the measurement criteria to classify the voiced and unvoiced speech segments from background noise. The reference noise pattern is updated by incoming silent segments and the classifier can work in real time. Simulation results have shown that this technique is robust even if the audio signal is corrupted by heavy broadband noise.

Details

Published in
AES Convention 5r
AES Convention
5r
Paper number
4045
Publication date
March 6, 1995
Affiliation
Signal Processing Research Centre, Queensland University Of Technology, Brisbane,QLD. (See document for exact affiliation information.)
Type
Convention Paper