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INTERSPEECH
2010

Nonlinear enhancement of onset for robust speech recognition

9 years 5 months ago
Nonlinear enhancement of onset for robust speech recognition
In this paper we present a novel algorithm called Suppression of Slowly-varying components and the Falling edge of the power envelope (SSF) to enhance spectral features for robust speech recognition, especially in reverberant environments. This algorithm is motivated by the precedence effect and by the modulation frequency characteristics of the human auditory system. We describe two slightly different types of processing that differ in whether or not the falling edges of power trajectories are suppressed using a lowpassed power envelope signal. The SSF algorithms can be implemented for online processing. Speech recognition results show that this algorithm provides especially good robustness in reverberant environments.1
Chanwoo Kim, Richard M. Stern
Added 18 May 2011
Updated 18 May 2011
Type Journal
Year 2010
Where INTERSPEECH
Authors Chanwoo Kim, Richard M. Stern
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