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Temporal and Spectral Processing Methods for Processing of Degraded Speech: A Review

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Author(s): Krishnamoorthy P | Mahadeva Prasanna S

Journal: IETE Technical Review
ISSN 0256-4602

Volume: 26;
Issue: 2;
Start page: 137;
Date: 2009;
Original page

Keywords: Multi-speaker speech | Noisy speech | Reverberant speech | Speech enhancement | Temporal processing and spectral processing.

ABSTRACT
This paper presents an overview of several most commonly used temporal and spectral processing -methods for the enhancement of degraded speech. Three major sources of degradation, namely, background noise, reverberation and speech from the competing speakers, have been considered. Temporal processing refers to processing the degraded speech in the time domain, for enhancing the speech components. Spectral processing refers to processing the degraded speech in the frequency domain. After the review, the paper concludes with a summation that considers the possibility of combined Temporal and Spectral Processing (TSP) approach for the enhancement of degraded speech.
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