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IEICE TRANSACTIONS on Fundamentals

Spectrum Broadening of Telephone Band Signals Using Multirate Processing for Speech Quality Enhancement

Hiroshi YASUKAWA

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Summary :

This paper describes a system that can enchance the speech quality degradation due to severe band limitation during speech transmission. We have already proposed a spectrum widening method that utilizes aliasing in sampling rate conversion and digital filtering for spectrum shaping. This paper proposes a new method that offers improved performance in terms of the spectrum distortion characteristics. Implementation procedures are clarified, and its performance is discussed. The proposed method can effectively enhance speech quality.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E78-A No.8 pp.996-998
Publication Date
1995/08/25
Publicized
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DOI
Type of Manuscript
Special Section LETTER (Special Section on Digital Signal Processing)
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