Pitch perception for mixtures of spectrally overlapping harmonic complex tones.

The Journal of the Acoustical Society of America
Christophe MicheylAndrew J Oxenham

Abstract

This study measured difference limens for fundamental frequency (DLF0s) for a target harmonic complex in the presence of a simultaneous spectrally overlapping harmonic masker. The resolvability of the target harmonics was manipulated by bandpass filtering the stimuli into a low (800-2400 Hz) or high (1600-3200 Hz) spectral region, using different nominal F0s for the targets (100, 200, and 400 Hz), and different masker F0s (0, +9, or -9 semitones) relative to the target. Three different modes of masker presentation, relative to the target, were tested: ipsilateral, contralateral, and dichotic, with a higher masker level in the contralateral ear. Ipsilateral and dichotic maskers generally caused marked elevations in DLF0s compared to both the unmasked and contralateral masker conditions. Analyses based on excitation patterns revealed that ipsilaterally masked F0 difference limens were small (<2%) only when the excitation patterns evoked by the target-plus-masker mixture contained several salient (>1 dB) peaks at or close to target harmonic frequencies, even though these peaks were rarely produced by the target alone. The findings are discussed in terms of place- or place-time mechanisms of pitch perception.

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Citations

May 2, 2013·Journal of the Association for Research in Otolaryngology : JARO·Heather A KreftAndrew J Oxenham
Sep 28, 2012·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Andrew J Oxenham
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Dec 3, 2015·The Journal of the Acoustical Society of America·Robert P Carlyon, John M Deeks
Jan 19, 2017·PLoS Computational Biology·Oded BarzelayOmri Barak
Feb 13, 2020·Journal of the Association for Research in Otolaryngology : JARO·Anahita H MehtaAndrew J Oxenham
Jun 4, 2019·The Journal of the Acoustical Society of America·Daniel R Guest, Andrew J Oxenham
May 3, 2019·The Journal of the Acoustical Society of America·Jackson E Graves, Andrew J Oxenham
Aug 3, 2017·The Journal of the Acoustical Society of America·Dorothée ArzounianAlain de Cheveigné
Jul 25, 2017·Journal of the Association for Research in Otolaryngology : JARO·Anahita H Mehta, Andrew J Oxenham
Oct 27, 2021·Trends in Hearing·Alain de Cheveigné

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