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Optimization of spectral warping parameters in a speech modification system

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2 Author(s)
Goncharoff, V. ; Dept. of Electr. Eng. & Comput. Sci., Illinois Univ., Chicago, IL, USA ; Chandran, S.

Previously the authors proposed an adaptive spectral envelope modification method for the purpose of enhancing vocal tract resonance-disordered speech. This approach is to frequency warp abnormal vowel spectral envelope functions nonlinearly to match vowel spectra from a normal speaker; warping functions for nonvowel input spectra are estimated from spectrally similar vowel warping functions. A discussion is presented of attempts at optimizing the spectral warping accuracy and perceived output signal quality of the algorithm when applied to continuous speech modifications

Published in:

Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on

Date of Conference:

23-26 May 1989

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