Difference in Voice Analysis Result by Pre and Post Processing of Telephone Line

Naoki Hagiwara1, Yasuhiro Omiya1, Shuji Shinohara2, Mitsuteru Nakamura2, Masakazu Higuchi2, Shunji Mitsuyoshi3, Shinichi Tokuno2

  • 1PST Inc.
  • 2The University of Tokyo
  • 3Dept. of Verbal Analysis of Pathophysiology Graduate School of M

Details

15:20 - 15:35 | Wed 12 Jul | Schmitt Room | WeBT10.5

Session: Voice Frequency Analysis: Expectation for the Convenient but Powerful Diagnostic Tool for Neuropsychiatric Disorders

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Abstract

The purpose of this study is to verify the impact of a deterioration of the sound quality of voice by a telephone line on estimating Vitality as the extent of depressive tendency based on voice analysis using MIMOSYS. First, the voices of about 1,000 people recorded using a recorder were prepared. Next, each voice was coded and resampled in preparation for transmission over a phone line. Vitalities obtained by analyzing the voices before and after these processes were compared. The results showed high correlation between the Vitality after coding and Vitality before coding, revealing that using a telephone would be an effective way to obtain voices.