Abstract

People speak more loudly in a noisy room or when momentarily deafened and more softly in a quiet room or when sidetone is artificially increased. The effort to compensate for these changes in the signal-to-noise ratio, or to match directly changes in the intensity of a model, typically falls about halfway short (in decibel units). This is probably because a speaker considers that he has doubled his own vocal level in half as many decibels as it takes to double the loudness of the signal or the noise. More concisely, the Lombard-reflex, sidetone-penalty and cross-modality matching functions have exponents of about one-half because the exponent of the loudness scale is half that of the autophonic scale of voice level. This amounts to saying that the speaker matches changes in signal or in noise to keep the signal-to-noise ratio nearly constant, but he is misled by the disparity in the sensory operating characteristics of speaking and listening.

Notes

The following article appeared in J. Acoust. Soc. Am. Volume 47, Issue 2B, pp. 618-624 (February 1970) and may be found at http://dx.doi.org/10.1121/1.1911937

Keywords

voice regulation, sensory dynamics

Subject Categories

Voice, Loudness

Disciplines

Psychology | Speech and Hearing Science

Publisher

Acoustical Society of America

Publication Date

2-1-1970

Rights Information

This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America.

Rights Holder

©1970 Acoustical Society of America



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