Publications-Detail

New Speech Enhancement Techniques for Low Bit Rate Speech Coding

Authors:
Martin, R. ,  Cox, R. V.
Book Title:
Proceedings of IEEE Workshop on Speech Coding (SCW)
Pages:
p.p. 165-167
Address:
Porvoo, Finland
Date:
Jun. 1999
Language:
English

Abstract

In this paper we present novel solutions for preprocessing noisy speech prior to low bit rate speech coding. We strive especially to improve the estimation of spectral parameters and to reduce the additional algorithmic delay caused by the enhancement preprocessor. While the former is achieved using a new adaptive limiting algorithm for the a priori signal-to-noise ratio (SNR) estimate, the latter makes use of a novel overlap/add scheme. Our enhancement techniques were evaluated in conjunction with the 2400 bps MELP coder by means of formal and informal listening tests.

Download

BibTeX

Copyright © by IKS
martin99b.pdf
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.