ベクトル量子化による小規模規則音声合成器の開発

URI http://repository.lib.tottori-u.ac.jp/Repository/metadata/79
File
Title
ベクトル量子化による小規模規則音声合成器の開発
Title Transcription
ベクトル リョウシカ ニヨル ショウキボ キソク オンセイ ゴウセイキ ノ カイハツ
Title Alternative
Development of Small-scale Speech Synthesizer based on Vector Qantization
Author
著者 清水 忠昭
著者読み シミズ タダアキ
著者英語Author Shimizu Tadaaki
所属Affiliation 鳥取大学工学部知能情報工学科
Subject
Speech Synthesis
LSP analysis
Vector Qantization
phonemic environment
NDC
Description

A new scheme of speech synthesis by rule was presented which could be implemented in ROM less than 4M bytes. The features of our scheme are consist in the use of the vector quantization of LSP parameters for VCV instance. We proposed two synthesis unit selection methods, 1) selection method by using phonemic environmental resemblance score (PER method), and 2) selection method by searching minimal connective distortion path (MLD method), for small scale speech synthesis system. PER method requires phonemic environmental information for each VCV instance in a VCV unit dictionary. This paper investigated experimentally to what extent we can reduce the phonemic environmental information with keeping high quality of synthesized speech. We verified that two phonemes frontward and one phoneme rearward range to a current VCV instance is enough to synthesize similar quality of speech as five phonemes frontward and five phonemes rearward. This result gives an experimental basis on minimizing a size of VCV unit dictionary.

Publisher
鳥取大学大学院工学研究科研究報告編集委員会
NiiType
Departmental Bulletin Paper
Link
ISSN/ISBN
NCID
Journal Title
鳥取大学大学院工学研究科/工学部研究報告
Volume
38
Issue
Start Page
55
End Page
65
Date of Issued
2007-12
DOI
Text Version
publisher
Rights
鳥取大学大学院工学研究科
Citation

鳥取大学大学院工学研究科/工学部研究報告. 2008, 38, 55-65

Set Type
工学研究科・工学部
Language
Japanese
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