An FFT-Based Companding Front End for Noise-Robust Automatic Speech Recognition

We describe an FFT-based companding algorithm for preprocessing speech before recognition. The algorithm mimics tone-to-tone suppression and masking in the auditory system to improve automatic speech recognition performance in noise. Moreover, it is also very computationally efficient and suite...

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Bibliographic Details
Main Authors: Bhiksha Raj, Lorenzo Turicchia, Bent Schmidt-Nielsen, Rahul Sarpeshkar
Format: Article
Language:English
Published: SpringerOpen 2007-06-01
Series:EURASIP Journal on Audio, Speech, and Music Processing
Online Access:http://dx.doi.org/10.1155/2007/65420