@inproceedings{tashev2005reverberation,
author = {Tashev, Ivan and Allred, Daniel},
title = {Reverberation Reduction for Better Speech Recognition},
booktitle = {Joint Workshop on Hands-Free Speech Communication and Microphone Arrays (HSCMA)},
year = {2005},
month = {March},
abstract = {In this paper we present a dereverberation algorithm for improving automatic speech recognition (ASR) results with minimal CPU overhead. As the reverberation tail hurts ASR the most, late reverberation is reduced via gain-based spectral subtraction. We use a multi-band decay model with an efficient method to update it in realtime. In reverberant environments the multi-channel version of the proposed algorithm reduces word error rates (WER) up to one half of the way between those of a microphone array only and a close-talk microphone. The four channel implementation requires less than 2% of the CPU power of a modern computer.},
url = {http://approjects.co.za/?big=en-us/research/publication/reverberation-reduction-for-better-speech-recognition/},
}