Auditory detection of infrapitch signals for several spatial configurations of pink noise maskers

Gregory H. Wakefield, Agnieszka Roginska, Thomas Santoro

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Listening for engine sounds in an underwater environment is modeled using spatialized infrapitch signals and pink noise maskers. Detection thresholds for such signals were measured for various spatial configurations of maskers. All stimuli were delivered over headphones, and rendered using individually measured Head-Related Transfer Functions. In single-masker environments, no significant effect of signal bearing in azimuth or elevation on detection threshold was observed. In multi-masker environments, the largest detection threshold increase was observed when increasing the number of maskers from 1 to 2. Thereafter, a linear increase in threshold detection (in dB) for every doubling of maskers, up to 32 maskers was observed. Randomizing the spatial presentation of the signal and maskers for each trial did not affect thresholds. Results suggest that prior knowledge of the spatial configuration of the signal and maskers does not appear to be necessary in performing such detection tasks.

Original languageEnglish (US)
Title of host publication41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012
Pages4446-4456
Number of pages11
StatePublished - 2012
Event41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012 - New York, NY, United States
Duration: Aug 19 2012Aug 22 2012

Publication series

Name41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012
Volume6

Other

Other41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012
CountryUnited States
CityNew York, NY
Period8/19/128/22/12

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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