Two experiments on the spectral boundary conditions for nonlinear additivity of simultaneous masking

L. E. Humes, L. W. Lee, Walt Jesteadt

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The present paper describes the results from two experiments which explored the spectral boundaries for the nonlinear additivity of simultaneous masking. The first experiment measured the threshold for detection of a 2-kHz tone in the presence of two 800-Hz-wide bands of noise that had varying degrees of spectral overlap with each other and the 2-kHz signal. Results revealed an abrupt transition from linear to nonlinear additivity of masking as the spectral separation between the two maskers varied from some overlap to none. The second experiment examined alternative explanations for the data. Explanations based on restricted-listening or distortion-product- detection hypotheses were not supported by the results of this experiment. These data indicate that nonlinear additivity of simultaneous masking holds for maskers that do not overlap within the critical band centered on the signal frequency. This interpretation is also consistent with a large body of data on the monaural and binaural summation (additivity) of loudness.

Original languageEnglish (US)
Pages (from-to)2598-2606
Number of pages9
JournalJournal of the Acoustical Society of America
Volume92
Issue number5
DOIs
StatePublished - Nov 26 1992

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masking
boundary conditions
loudness
broadband
thresholds
products
Experiment
Additivity
Spectrality
Boundary Conditions
Masking
Overlap

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Two experiments on the spectral boundary conditions for nonlinear additivity of simultaneous masking. / Humes, L. E.; Lee, L. W.; Jesteadt, Walt.

In: Journal of the Acoustical Society of America, Vol. 92, No. 5, 26.11.1992, p. 2598-2606.

Research output: Contribution to journalArticle

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