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Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
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Real-Time Acoustic Voice Analysis Using a Handheld Device Running Android Operating System.

Shintaro Fujimura1, Tsuyoshi Kojima1, Yusuke Okanoue1

  • 1Department of Otolaryngology, Tenri Hospital, Tenri, Nara, Japan.

Journal of Voice : Official Journal of the Voice Foundation
|June 30, 2019
PubMed
Summary
This summary is machine-generated.

A new handheld acoustic voice analysis system (VArt) shows high reliability for assessing voice disorders. This accessible technology offers real-time analysis, improving clinical feasibility for speech therapy and phonosurgery.

Keywords:
Acoustic voice analysisHarmonics-to-Noise ratioReal-timeSmartphoneTabletVoice disorder

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Area of Science:

  • Medical Technology
  • Speech Science
  • Acoustic Analysis

Background:

  • Conventional acoustic voice analysis systems can be cumbersome and less accessible.
  • There is a need for reliable, real-time voice analysis tools usable in diverse clinical settings.

Purpose of the Study:

  • To develop and evaluate a highly accessible acoustic voice analysis system (VArt) on a handheld Android device.
  • To introduce a new real-time hoarseness index (Rart) derived from harmonics-to-noise ratio.
  • To assess the reliability and clinical feasibility of VArt compared to existing software.

Main Methods:

  • Modified fundamental frequency (F0) extraction and developed an intuitive user interface with the real-time Rart index.
  • Measured F0, harmonics-to-noise ratio (Ra2), and Rart in sustained vowel phonations from healthy volunteers and patients with voice disorders.
  • Compared measurements from VArt on handheld devices with a Windows-based acoustic analysis software (VA) in different room conditions.

Main Results:

  • All comparisons between the VArt system and the VA system showed high correlation.
  • The newly developed VArt system demonstrated high consistency with the established VA system.

Conclusions:

  • The VArt system is highly reliable for acoustic voice analysis.
  • The VArt system significantly increases the clinical feasibility of voice analysis, offering real-time insights for interventions like phonosurgery and speech therapy.