AJSLP
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

American Journal of Speech-Language Pathology Vol.7 91-96 February 1998.
© American Speech-Language-Hearing Association
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow My Folders
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Ingrisano, D. R-S
Right arrow Articles by Jepson, K. R.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Ingrisano, D. R-S
Right arrow Articles by Jepson, K. R.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Facebook   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Environmental Noise

A Threat to Automatic Voice Analysis

Dennis R-S Ingrisano 1
Cecyle K. Perry 2

Kairsten R. Jepson 3
1 University of Northern Colorado, Greeley
2 University of Wyoming, Laramie
3 American Therapy Services, Casper, WY

DIngrisa{at}HHS.UNCo.edu

The effects of environmental noise were estimated from automatic computer-assisted analyses of voice samples. Signals consisted of a live voice sample and a synthesized triangular waveform. Noise was generated from a personal computer fan. Six different A-weighted signal-to-noise [S/N(A)] conditions were created for the live voice and synthetic signal— 25, 20, 15, 10, 5, and 0 dB. Results revealed that automatic estimates were systematically affected by different S/N levels. As the noise floor increased, baseline estimates of jitter and shimmer also increased in value. Results are discussed with reference to safeguards and standards in voice recording and analysis.

Key Words: noise, perturbation, jitter, shimmer, voice analysis

Submitted on September 17, 1997
Accepted on November 26, 1997


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Facebook Facebook   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
All ASHA Journals AJA AJSLP JSLHR LSHSS
Copyright © 1998 by the American Speech-Language-Hearing Association.