Enhancement of hearing-impaired Mandarin speech

Chen Long Lee, Ya Ru Yang, Wen-Whei Chang, Yuan Chuan Chiang

Research output: Contribution to conferencePaperpeer-review


This paper presents a new voice conversion system that modifies misarticulations prosodic deviations of the hearingimpaired Mandarin speech. The basic strategy is the detection and exploitation of characteristic features that distinguish the impaired speech from the normal speech at segmental and prosodic levels. For spectral conversion, cepstral coefficients were characterized under the form of a Gaussian mixture model with parameters converted using a mapping function that minimizes the spectral distortion between the impaired normal speech. We also proposed a VQ-based approach to prosodic conversion that involves modifying the features extracted from the pitch contour by orthogonal polynomial transform. Experimental results indicate that the proposed system appears useful in enhancing the hearing-impaired Mandarin speech.

Original languageEnglish
Number of pages4
StatePublished - 1 Jan 2003
Event8th European Conference on Speech Communication and Technology, EUROSPEECH 2003 - Geneva, Switzerland
Duration: 1 Sep 20034 Sep 2003


Conference8th European Conference on Speech Communication and Technology, EUROSPEECH 2003

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