Research On Speech Production Model and Phoneme Recognition Using Cooperative Problem Solvers

使用协作问题解决器的语音产生模型和音素识别研究

• 批准号: 01580036
• 负责人: OGAWA Hitoshi
• 金额: $ 0.19万
• 依托单位: Ritsumeikan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01580036/
• 关键词: Cooperative Problem Solving; Agent; Speech Production; Phoneme Recognition; Vocal Tract Model; 問題解決プロトコル

1. A vocal tract model was proposed as a speech production model which is possible to be used for phoneme recognition.(1) For building an articulatory model, the 3-dimensional vocal tract shapes of Japanese vowels were measured by magnetic resonance images (MRIs). Vowels were synthesized by using vocal tract area function estimated by MRIs. Analysis of the first and second formants of the synthesized vowels showed good agreement with the subject's original productions.(2) Based on the measurement of the vocal tract shape, midsagittal shape of vocal tract were estimated from 2 positions on frontal tongue surface by a curvature function model of tongue shape, and vocal tract area functions were estimated by the midsagittal shape of vocal tract.2. A cooperative problem solving was used to produce consecutive phoneme based on vocal tract model mentioned above.Cooperative problem solving was used for interactions between the different vocal tract shapes of the different vowels, because there are constraints of the vocal tract shape change from one vowel to another vowel. The system was constructed using PSAs (Problem Solving Agents) developed by the authors. It consists of three kinds of agents : time agent, vowel agent and unity agent. It can produce the pronunciation (e. g. "ya", "wa" and so on) uttered changing vocal tract shape.

1.提出了一种可用于音素识别的声道模型作为语音产生模型。(1)为了建立发音模型，利用磁共振图像（MRI）测量了日语元音的三维声道形状。元音合成使用由MRI估计的声道面积功能。对合成元音的第一和第二共振峰的分析表明，与受试者的原始作品吻合良好。(2)在测量声道形状的基础上，利用舌面曲率函数模型从舌面2个位置估计出声道中矢状面形状，并根据声道中矢状面形状估计出声道面积函数.在上述声道模型的基础上，采用协同问题求解的方法产生连续音素，由于声道形状从一个元音到另一个元音之间存在变化的约束，因此采用协同问题求解的方法解决不同元音声道形状之间的相互作用。该系统是使用作者开发的PSA（问题解决代理）。它由三种施事构成：时间施事、元音施事和单位施事。它可以产生发音（e）。G.“呀”、“哇”等）发出变化的声道形状。

项目成果

松村 雅史: "舌と下顎の調音運動を用いた発声代行システムーホルマント周波数の推定と連続母音の合成ー" 電子情報通信学会論文誌(A). J73ーA. 725-733 (1990)

Masashi Matsumura：“使用舌头和下颌的发音运动的语音替换系统 - 共振峰频率的估计和连续元音的合成 -”电子、信息和通信工程师学会汇刊 (A) 725-733 (A)。 1990)

松村雅史: "舌と下顎の調音運動を用いた発声代行システム-ホルマント周波数の推定と連続母音の合成-" 電子情報通信学会論文誌(A).

Masashi Matsumura：“利用舌头和下颌的发音运动的语音替换系统 - 共振峰频率的估计和连续元音的合成 -”电子信息和通信工程师学会汇刊（A）。

Masafumi Matsumura: "An Artificial Speech Production System for Voice Disorders Controlled by Jaw and Tongue Movements Estimation of Formant Frequency and Production of Connected Vowels" The Transactions Of The Institute Of Electronics, Information And Co

Masafumi Matsumura：“一种用于由下巴和舌头运动控制的语音障碍的人工语音产生系统，共振峰频率的估计和连接元音的产生”电子信息研究所学报