Behav Res Methods. 2009 May;41(2):318-24.

Standardization of pitch-range settings in voice acoustic analysis.

Vogel AP, Maruff P, Snyder PJ, Mundt JC.

Source

University of Melbourne, Melbourne, Victoria, Australia. avogel@cogstate.com

Abstract

Voice acoustic analysis is typically a labor-intensive, time-consuming process that requires the application of idiosyncratic parameters tailored to individual aspects of the speech signal. Such processes limit the efficiency and utility of voice analysis in clinical practice as well as in applied research and development. In the present study, we analyzed 1,120 voice files, using standard techniques (case-by-case hand analysis), taking roughly 10 work weeks of personnel time to complete. The results were compared with the analytic output of several automated analysis scripts that made use of preset pitch-range parameters. After pitch windows were selected to appropriately account for sex differences, the automated analysis scripts reduced processing time of the 1,120 speech samples to less than 2.5 h and produced results comparable to those obtained with hand analysis. However, caution should be exercised when applying the suggested preset values to pathological voice populations.

PMID:: 19363172; [PubMed - indexed for MEDLINE]
PMCID:: PMC2669687

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