Discriminations of interaural phase differences

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

Listeners were asked to discriminate between two pulsed sinusoids, one presented with an interaural phase delay θ and the other presented with a longer delay θ + δθ. Frequency of the sinusoids ranged from 250 to 4000 Hz. The difference threshold for δθ was defined as the dependent variable. This threshold increased as θ increased from zero degrees to half the period of the sinusoid, then decreased as θ was further increased to a full period of the sinusoid. As θ was increased to half the period of the sinusoid, the lateral image appeared to shift away from midline toward the ear leading in time; but as θ was increased beyond half a period of the sinusoid, the lateral image appeared to shift toward the midline from the ear lagging in time. These results were obtained at 250, 500, and 900 Hz. At 2000 Hz, the value of δθ remained a constant as θ was varied, while at 4000 Hz the lateral image was not moved by any interaural delay. The results imply that (1) for frequencies less than 2000 Hz, lateral discriminations based on interaural phase differences are more acute toward midline than at either side, and (2) for frequencies greater than 2000 Hz, changes in interaural phase are unable to shift the lateral image.

Original languageEnglish (US)
Pages (from-to)1299-1303
Number of pages5
JournalJournal of the Acoustical Society of America
Volume55
Issue number6
DOIs
StatePublished - Jan 1 1974
Externally publishedYes

Fingerprint

sine waves
discrimination
ear
shift
dependent variables
thresholds
Discrimination
Ear

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

Cite this

Discriminations of interaural phase differences. / Yost, William.

In: Journal of the Acoustical Society of America, Vol. 55, No. 6, 01.01.1974, p. 1299-1303.

Research output: Contribution to journalArticle

@article{4c0afb2f47314d38bdad322af636c3ff,
title = "Discriminations of interaural phase differences",
abstract = "Listeners were asked to discriminate between two pulsed sinusoids, one presented with an interaural phase delay θ and the other presented with a longer delay θ + δθ. Frequency of the sinusoids ranged from 250 to 4000 Hz. The difference threshold for δθ was defined as the dependent variable. This threshold increased as θ increased from zero degrees to half the period of the sinusoid, then decreased as θ was further increased to a full period of the sinusoid. As θ was increased to half the period of the sinusoid, the lateral image appeared to shift away from midline toward the ear leading in time; but as θ was increased beyond half a period of the sinusoid, the lateral image appeared to shift toward the midline from the ear lagging in time. These results were obtained at 250, 500, and 900 Hz. At 2000 Hz, the value of δθ remained a constant as θ was varied, while at 4000 Hz the lateral image was not moved by any interaural delay. The results imply that (1) for frequencies less than 2000 Hz, lateral discriminations based on interaural phase differences are more acute toward midline than at either side, and (2) for frequencies greater than 2000 Hz, changes in interaural phase are unable to shift the lateral image.",
author = "William Yost",
year = "1974",
month = "1",
day = "1",
doi = "10.1121/1.1914701",
language = "English (US)",
volume = "55",
pages = "1299--1303",
journal = "Journal of the Acoustical Society of America",
issn = "0001-4966",
publisher = "Acoustical Society of America",
number = "6",

}

TY - JOUR

T1 - Discriminations of interaural phase differences

AU - Yost, William

PY - 1974/1/1

Y1 - 1974/1/1

N2 - Listeners were asked to discriminate between two pulsed sinusoids, one presented with an interaural phase delay θ and the other presented with a longer delay θ + δθ. Frequency of the sinusoids ranged from 250 to 4000 Hz. The difference threshold for δθ was defined as the dependent variable. This threshold increased as θ increased from zero degrees to half the period of the sinusoid, then decreased as θ was further increased to a full period of the sinusoid. As θ was increased to half the period of the sinusoid, the lateral image appeared to shift away from midline toward the ear leading in time; but as θ was increased beyond half a period of the sinusoid, the lateral image appeared to shift toward the midline from the ear lagging in time. These results were obtained at 250, 500, and 900 Hz. At 2000 Hz, the value of δθ remained a constant as θ was varied, while at 4000 Hz the lateral image was not moved by any interaural delay. The results imply that (1) for frequencies less than 2000 Hz, lateral discriminations based on interaural phase differences are more acute toward midline than at either side, and (2) for frequencies greater than 2000 Hz, changes in interaural phase are unable to shift the lateral image.

AB - Listeners were asked to discriminate between two pulsed sinusoids, one presented with an interaural phase delay θ and the other presented with a longer delay θ + δθ. Frequency of the sinusoids ranged from 250 to 4000 Hz. The difference threshold for δθ was defined as the dependent variable. This threshold increased as θ increased from zero degrees to half the period of the sinusoid, then decreased as θ was further increased to a full period of the sinusoid. As θ was increased to half the period of the sinusoid, the lateral image appeared to shift away from midline toward the ear leading in time; but as θ was increased beyond half a period of the sinusoid, the lateral image appeared to shift toward the midline from the ear lagging in time. These results were obtained at 250, 500, and 900 Hz. At 2000 Hz, the value of δθ remained a constant as θ was varied, while at 4000 Hz the lateral image was not moved by any interaural delay. The results imply that (1) for frequencies less than 2000 Hz, lateral discriminations based on interaural phase differences are more acute toward midline than at either side, and (2) for frequencies greater than 2000 Hz, changes in interaural phase are unable to shift the lateral image.

UR - http://www.scopus.com/inward/record.url?scp=0016068295&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0016068295&partnerID=8YFLogxK

U2 - 10.1121/1.1914701

DO - 10.1121/1.1914701

M3 - Article

VL - 55

SP - 1299

EP - 1303

JO - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

SN - 0001-4966

IS - 6

ER -