1988 Fiscal Year Final Research Report Summary

Development of a device for evaluating fitness of a hearin aid

Research Project

Project/Area Number	61870069
Research Category	Grant-in-Aid for Developmental Scientific Research
Allocation Type	Single-year Grants
Research Field	Otorhinolaryngology
Research Institution	Teikyo University
Principal Investigator	TANAKA Yoshisato Fuculty of Literature, Teikyo University, 文学部, 教授 (70082013)
Co-Investigator(Kenkyū-buntansha)	鳥山稔国立病院医療センター耳鼻咽喉科, 科長 OOTA Fumihiko Department of Otolaryngol., Kinki University School of Medicine, 医学部, 教授 (50088530) OKAMOTO Michinari Department of Otolaryngol.,Showa Univ. School of Medicine, 医学部, 教授 (90053751) IMAI Hideo The National Institute for Special Education, 部長 (30000285) SHIMIZU Yasuo Department of School Education, Tsukuba University (60015873) NAKANISHI Yasuko Institute for Special Ed., The Tokyo Gakugei University (50014725)
Project Period (FY)	1986 – 1988
Keywords	A device for evaluating fitness of a hearing aid / speech hearing tests / コンパクトディスク
Research Abstract	The present investigation was undertaken to develop a method and a device for evaluating fitness of a hearing aid in terms of speech recognition scores through a hearing aid. Test materials including monosyllables, two-syllables words, three-syllables words, short sentences used in a daily life, digits, multitalker noises, traffic noises, etc. were collected mainly from the literatures. Based on these materials, a test battery including the following seven speech tests and two kinds of noises was made: 1) A discrimination test for monosyllables, 2) and 3) Recognition tests for two-syllables words applied to young children and abults, respectively, 4) and 5) Recognition tests for three-syllables words applied to young children and abults, respectively, 6) A recognition test for short sentences, 7) A recognition test for unnatural sentences, 8) Multi-talker noises produced by male and female adults, 9) Traffic noises recorded on a crossing. Lists of the speech materials employed for these tests were pronounced by five NHK radio announcers and recorded on a magnetic digital audiotape.