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Two stage iterative wiener filtering for speech enhancement

Nand, Krishna K and Sreenivas, TV (2008) Two stage iterative wiener filtering for speech enhancement. In: INTERSPEECH,9th Annual Conference of the International Speech Communication Association, Brisbane, Australia.

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Official URL: http://www.isca-speech.org/archive/interspeech_200...

Abstract

We formulate a two-stage Iterative Wiener filtering (IWF) approach to speech enhancement, bettering the performance of constrained IWF, reported in literature. The codebook constrained IWF (CCIWF) has been shown to be effective in achieving convergence of IWF in the presence of both stationary and non-stationary noise. To this, we include a second stage of unconstrained IWF and show that the speech enhancement performance can be improved in terms of average segmental SNR (SSNR), Itakura-Saito (IS) distance and Linear Prediction Coefficients (LPC) parameter coincidence. We also explore the tradeoff between the number of CCIWF iterations and the second stage IWF iterations.

Item Type: Conference Paper
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 19 Sep 2011 08:51
Last Modified: 19 Sep 2011 08:51
URI: http://eprints.iisc.ernet.in/id/eprint/40585

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