2012 Fiscal Year Final Research Report

An investigation of next-generation hearing index by using the ultra-accuracy spectral analysis to satisfy both of the frequency and the time resolution

Research Project

Project/Area Number	23650110
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Multi-year Fund
Research Field	Sensitivity informatics/Soft computing
Research Institution	University of Toyama
Principal Investigator	YOSHIZAWA Toshao 富山大学, 大学院・理工学研究部(工学), 助教 (20262503)
Co-Investigator(Kenkyū-buntansha)	HIROBAYASHI Shigeki 富山大学, 大学院・理工学研究部(工学), 教授 (40272950)
Project Period (FY)	2011 – 2012
Keywords	聴覚指標 / 周波数分析
Research Abstract	Performance of audio equipment is often evaluated subjectively. That of audio cables is also evaluated subjectively. However, there are few studies of them because of being difficult to finding the difference of acoustical characteristics of them.In this study, we were able to visualize the very small frequency changes in the TSP audio signal passed through the audio cables by using the NHA（Non-Harmonic Analysis). From the results, we got new knowledge about the relationship between the electrical characteristic and the subjective evaluation of cables.