JNDS of interaural time delay (ITD) of selected frequency bands in speech and music signals

JNDS of interaural time delay (ITD) of selected frequency bands in the presence of other frequency bands have been reported for noiseband stimuli [Zurek (1985); Trahiotis and Bernstein (1990)]. Similar measurements will be reported for speech and music signals. When stimuli are synthesized with band...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2002-05, Vol.111 (5_Supplement), p.2356-2356
Main Authors: Aliphas, Avner, Colburn, H. Steven, Ghitza, Oded
Format: Article
Language:English
Online Access:Get full text
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Summary:JNDS of interaural time delay (ITD) of selected frequency bands in the presence of other frequency bands have been reported for noiseband stimuli [Zurek (1985); Trahiotis and Bernstein (1990)]. Similar measurements will be reported for speech and music signals. When stimuli are synthesized with bandpass/band-stop operations, performance with complex stimuli are similar to noisebands (JNDS in tens or hundreds of microseconds); however, the resulting waveforms, when viewed through a model of the auditory periphery, show distortions (irregularities in phase and level) at the boundaries of the target band of frequencies. An alternate synthesis method based upon group-delay filtering operations does not show these distortions and is being used for the current measurements. Preliminary measurements indicate that when music stimuli are created using the new techniques, JNDS of ITDs are increased significantly compared to previous studies, with values on the order of milliseconds.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4777913