CUED Publications database

Model-based approaches to handling additive noise in reverberant environments

Gales, MJF and Wang, Y-Q (2011) Model-based approaches to handling additive noise in reverberant environments. 2011 Joint Workshop on Hands-free Speech Communication and Microphone Arrays, HSCMA'11. pp. 121-126.

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Abstract

Model-based approaches to handle additive and convolutional noise have been extensively investigated and used. However, the application of these schemes to handling reverberant noise has received less attention. This paper examines the extension of two standard additive/convolutional noise approaches to handling reverberant noise. The first is an extension of vector Taylor series (VTS) compensation, reverberant VTS, where a mismatch function including reverberant noise is used. The second scheme modifies constrained MLLR to allow a wide-span of frames to be taken into account and projected into the required dimensionality. To allow additive noise to be handled, both these schemes are combined with standard VTS. The approaches are evaluated and compared on two tasks, MC-WSJ-AV, and a reverberant simulated version of AURORA-4. © 2011 IEEE.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div F > Machine Intelligence
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:59
Last Modified: 08 Dec 2014 02:35
DOI: 10.1109/HSCMA.2011.5942377