New speech modification method by signal reconstruction

Masanobu Abe, Shin'ichi Tamura, Hisao Kuwabara

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


The authors propose a new speech modification algorithm using short-time Fourier transform (STFT) synthesis. This algorithm is developed using the criterion that the mean-square-error signals between the STFT spectra of the estimated and the modified should be minimized. The most important and unique ideas of the algorithm are liftering that passes all cepstra except cepstra in the pitch frequency region, and phase control by a signal reconstruction algorithm and window-shift adjustment. Listening tests for uniform and nonuniform pitch modification reveal that the proposed algorithm can synthesize high-quality speech and that it is applicable to a synthesis-by-rule system.

Original languageEnglish
Pages (from-to)592-595
Number of pages4
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Publication statusPublished - Dec 1 1989
Externally publishedYes
Event1989 International Conference on Acoustics, Speech, and Signal Processing - Glasgow, Scotland
Duration: May 23 1989May 26 1989

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering


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