Development and Testing of a Portable Vocal Accumulator This research note describes the design and testing of a device for unobtrusive, long-term ambulatory monitoring of voice use, named the Portable Vocal Accumulator (PVA). The PVA contains a digital signal processor for analyzing input from a neck-placed miniature accelerometer. During its development, accelerometer recordings were obtained from 99 participants ... Research Note
Research Note  |   December 01, 2003
Development and Testing of a Portable Vocal Accumulator
 
Author Affiliations & Notes
  • Harold A. Cheyne
    Massachusetts Eye and Ear Infirmary, Boston
  • Helen M. Hanson
    Massachusetts Institute of Technology, Cambridge
  • Ronald P. Genereux
    Sensimetrics Corporation, Somerville, MA
  • Kenneth N. Stevens
    Massachusetts Institute of Technology, Cambridge
  • Robert E. Hillman
    Massachusetts Eye and Ear Infirmary, Boston
  • Contact author: Harold Cheyne, PhD, Voice and Speech Laboratory, Massachusetts Eye and Ear Infirmary, 243 Charles Street, Boston, MA 02114. E-mail: harold_cheyne@meei.harvard.edu
Article Information
Speech, Voice & Prosodic Disorders / Voice Disorders / Speech, Voice & Prosody / Speech / Research Notes
Research Note   |   December 01, 2003
Development and Testing of a Portable Vocal Accumulator
Journal of Speech, Language, and Hearing Research, December 2003, Vol. 46, 1457-1467. doi:10.1044/1092-4388(2003/113)
History: Received January 6, 2003 , Accepted April 29, 2003
 
Journal of Speech, Language, and Hearing Research, December 2003, Vol. 46, 1457-1467. doi:10.1044/1092-4388(2003/113)
History: Received January 6, 2003; Accepted April 29, 2003
Web of Science® Times Cited: 62

This research note describes the design and testing of a device for unobtrusive, long-term ambulatory monitoring of voice use, named the Portable Vocal Accumulator (PVA). The PVA contains a digital signal processor for analyzing input from a neck-placed miniature accelerometer. During its development, accelerometer recordings were obtained from 99 participants with normal or dysphonic voices. The recordings were used to (a) test the specifications and capabilities of the PVA for monitoring normal and dysphonic voices and (b) explore potentially useful displays for the large quantity of data generated by long-term monitoring. The current prototype PVA is pocket-sized (12 x 8.5 x 2 cm), lightweight (200 g), and capable of sampling 11 hr of voice-use data, including estimates of fundamental frequency, sound pressure level, and phonation duration.

Acknowledgments
Funding for this research was provided by National Institute on Deafness and Other Communication Disorders Grant R44DC02917.
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