Modulation detection interference with two-component masker modulators

Stanley Sheft, William Yost

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Thresholds were measured for detecting amplitude modulation of a single tonal carrier in the presence of modulated maskers. The masker modulator contained either one or two sinusoidal components. As found in previous studies, there was a detrimental effect of masker modulation on the detection of probe modulation. Interference was obtained with a 4-Hz separation between the two components of the masker modulator with the probe modulated at the 4- Hz beat rate. The amount of interference obtained with the two-component masker modulator was greater than that produced by the individual components of the masker modulator. The amount of interference increased with the depth of the masker-modulator beating and the number of masker carders. The interference due to beating of the masker-modulator components was reduced when the beat rate was increased from 4 to 10 Hz. Results obtained with two- component masker modulators indicate a masking effect not predicted by a spectral representation of the probe and masker envelopes.

Original languageEnglish (US)
Pages (from-to)1106-1112
Number of pages7
JournalJournal of the Acoustical Society of America
Volume102
Issue number2
DOIs
StatePublished - Aug 1 1997
Externally publishedYes

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modulators
interference
modulation
probes
synchronism
masking
Interference
Modulation
envelopes
thresholds

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Modulation detection interference with two-component masker modulators. / Sheft, Stanley; Yost, William.

In: Journal of the Acoustical Society of America, Vol. 102, No. 2, 01.08.1997, p. 1106-1112.

Research output: Contribution to journalArticle

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