Acoustical Science and Technology
Online ISSN : 1347-5177
Print ISSN : 1346-3969
ISSN-L : 0369-4232
PAPERS
Implementation of realtime STRAIGHT speech manipulation system: Report on its first implementation
Hideki BannoHiroaki HataMasanori MoriseToru TakahashiToshio IrinoHideki Kawahara
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JOURNAL FREE ACCESS

2007 Volume 28 Issue 3 Pages 140-146

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Abstract

A very high quality speech analysis, modification and synthesis system—STRAIGHT—has now been implemented in C language and operated in realtime. This article first provides a brief summary of STRAIGHT components and then introduces the underlying principles that enabled realtime operation. In STRAIGHT, the built-in extended pitch synchronous analysis, which does not require analysis window alignment, plays an important role in realtime implementation. A detailed description of the processing steps, which are based on the so-called “just-in-time” architecture, is presented. Further, discussions on other issues related to realtime implementation and performance measures are also provided. The software will be available to researchers upon request.

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© 2007 by The Acoustical Society of Japan
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