A study on the relationship between psychoacoustic evaluation proficiency and acoustic parameters of pathological voice

2015 Fiscal Year Final Research Report

• Project/Area Number: 25350617
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Rehabilitation science/Welfare engineering
• Research Institution: Chiba Institute of Technology
• Principal Investigator: SEKI HIDEAKI 千葉工業大学, 情報科学部, 准教授 (60226636)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 病的音声 / 音声障害 / 嗄声 / 構音障害 / 聴覚心理的評価 / GRBAS尺度 / 音響分析 / 病的音声評価・訓練プログラム

Outline of Final Research Achievements

The results of acoustic analysis and the psychoacoustic evaluation of hoarse voice showed that the main clue of psychoacoustic evaluation of hoarse voice were acoustic parameters PPQ, JP, HNR and NNEa. A beginner of psychoacoustic evaluation of hoarse voice was mainly using PPQ and JP for the clue of evaluation. As compared with this, an expert of psychoacoustic evaluation of hoarse voice was considered to use and evaluate other acoustic parameters (HNR, NNEa) at the clue of evaluation in addition to PPQ and JP. On the other hand, it was thought that the acoustical clue of the evaluation of lateral articulation voice were an intensity difference of first and second formant frequency, a Q value which indicate sharpness of second formant and a noise level of a consonant.
Furthermore,　the psychoacoustic evaluation training and learning program which based on this study were developed, and a validity of the program was affirmed.

Free Research Field

総合領域