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 suited to...

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Bibliographic Details
Main Authors: Raj, Bhiksha, Turicchia, Lorenzo, Schmidt-Nielsen, Bent, Sarpeshkar, Rahul
Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2011
Online Access:http://hdl.handle.net/1721.1/67033
https://orcid.org/0000-0003-0384-3786