2010 Fiscal Year Final Research Report

Development of next-generation binaural speech enhancement system by wavelet transform and new electromagnetic eardrum exciter

Research Project

Project/Area Number	20500496
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Rehabilitation science/Welfare engineering
Research Institution	Miyagi National College of Technology
Principal Investigator	HONGO Satoshi Miyagi National College of Technology, 専攻科, 教授 (80271881)
Co-Investigator(Kenkyū-buntansha)	HAMANISHI Shinji 仙台高等専門学校, 機械システム工学科, 准教授 (00374968)
Project Period (FY)	2008 – 2010
Keywords	補聴器 / ウェーブレット変換 / 鼓膜加振デバイス / FEM / TS-BASE / WT
Research Abstract	We have studied the next-generation binaural speech enhancement system by wavelet transform and new electromagnetic eardrum exciter. It was found that Meyer type wavelet and PTI-CWT were best mother wavelet for this application. TS-BASE/WT which provide almost the same performance by objective or subjective evaluation as conventional methods with few bands was proposed. Furthermore, sound propagation around head, eardrum, and auditory ossicle were investigated for performance evaluation test by FEM and measurements of plaster figure.

(5 results)