The development of bone conducted microphone using direct bone conducted sound for esophageal speaker

2015 Fiscal Year Final Research Report

• Project/Area Number: 25350675
• 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: Health Sciences University of Hokkaido
• Principal Investigator: Maeda Hidehiko 北海道医療大学, リハビリテーション科学部, 助教 (90632604)
• Co-Investigator(Kenkyū-buntansha): NISHIZAWA noriko 北海道医療大学, リハビリテーション科学部言語聴覚療法学科, 教授 (10374266)
• Co-Investigator(Renkei-kenkyūsha): YONEMOTO kiyoshi 岩手県立大学, 社会福祉学部人間福祉学科, 教授 (90305277)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 福祉工学 / 骨導マイクロホン / 直接骨導音 / 食道音声 / 発生支援機器 / 経皮骨導マイクロホン / 喉頭摘出者 / 音声QOL

Outline of Final Research Achievements

In this study, We constructed a detection system of direct bone conducted sound using a titanium implant of bone anchored hearing aid with skin penetration and clarified the following things; 1) In non-noisy condition, the high frequencies sound power in the direct bone conducted sound did not decrease. Therefore, those vowels distortion also decreased. However, in auditory psychological examination, there were no significant differences for the clarity and the easy listening of monosyllables between the direct and the non-direct bone conducted sound. 2) In comparison with air conducted sound, the clarity of the direct bone conducted sound for monosyllables and words task showed significant differences in noisy condition, especially strong noisy condition (95dB).

Free Research Field

リハビリテーション科学・福祉工学