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Related Concept Videos

Design Example01:23

Design Example

348
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
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Types of Reports III: Telephone and Verbal Reports01:26

Types of Reports III: Telephone and Verbal Reports

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Telephone and Verbal Reports in healthcare settings are two communication methods for conveying therapeutic instructions from healthcare providers to nurses or other healthcare staff.
Here's an overview of each type:
Telephone Orders
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Related Experiment Video

Updated: Jul 20, 2025

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
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Introduction of Voice Type Component (VTC) as an Effective Acoustic Voice Analysis Method in Tele-evaluation.

Boquan Liu1, Grace Hao2, Ying Cui3

  • 1School of Humanities, Shanghai Jiao Tong University, Shanghai, China.

Journal of Voice : Official Journal of the Voice Foundation
|August 6, 2023
PubMed
Summary

Voice type component (VTC) analysis using smartphone recordings is a reliable method for remote voice evaluations. This telepractice approach improves access to care for individuals with voice disorders, especially in underserved areas.

Keywords:
Acoustic voice analysisTele-evaluationVoice samplingVoice type component

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Area of Science:

  • Speech-language pathology
  • Acoustic analysis
  • Telehealth

Background:

  • Telepractice is increasingly used for voice therapy, but in-person voice evaluations persist due to limitations in remote acoustic analysis.
  • Developing sensitive and reliable acoustic methods is crucial for effective tele-evaluation of voice disorders.

Purpose of the Study:

  • To investigate the efficacy of various acoustic analysis methods for voice evaluation within a telepractice framework.
  • To assess the reliability of smartphone-collected voice samples for objective acoustic analysis.

Main Methods:

  • Eighteen female teachers with voice disorders provided speech samples via in-person and smartphone collection methods.
  • Voice Type Component (VTC) analysis, measuring chaos and intrinsic dimension, was applied to assess voice samples.
  • Statistical analyses including correlation coefficient, t-tests, and AUC were used to compare data collection methods.

Main Results:

  • The Voice Type Component (VTC) measurement demonstrated high reliability for acoustic analysis using smartphone-collected voice samples.
  • Statistical validation confirmed the accuracy of VTC analysis with remote data compared to traditional methods.
  • VTC emerged as an effective and precise acoustic analysis tool for tele-evaluations.

Conclusions:

  • Smartphone-based voice sampling offers a feasible and accessible method for remote voice evaluations.
  • This approach reduces barriers to accessing voice specialists and lowers healthcare costs.
  • The study enhances the potential of telepractice to deliver effective voice care to remote and underserved populations.