Conversion of a head-mounted microphone signal into calibrated SPL units

A method is reviewed for conversion of a microphone signal into calibrated Sound Pressure Level (SPL) units. The method follows American National Standards Institute (ANSI) standard for S1.4 SPL meters and requires an accurate SPL meter and an accurate calibration sound source for conversion. Accura...

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Bibliographic Details
Published in:Journal of voice Vol. 11; no. 4; pp. 417 - 421
Main Authors: Winholtz, W S, Titze, I R
Format: Journal Article
Language:English
Published: United States 01-12-1997
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Summary:A method is reviewed for conversion of a microphone signal into calibrated Sound Pressure Level (SPL) units. The method follows American National Standards Institute (ANSI) standard for S1.4 SPL meters and requires an accurate SPL meter and an accurate calibration sound source for conversion. Accuracy and validation data from test signals and human phonation are provided. The results indicate that under typical speech conditions, an absolute accuracy of plus or minus 1.6 dB (type 1 SPL meter) can be obtained with a miniature head-mounted microphone.
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ISSN:0892-1997
DOI:10.1016/S0892-1997(97)80037-9