Effects of Interaural Level and Time Differences on the Externalization of Sound

Publication: Research - peer-reviewConference abstract for conference – Annual report year: 2012

Standard

Effects of Interaural Level and Time Differences on the Externalization of Sound. / Dau, Torsten; Catic, Jasmina; Santurette, Sébastien; Buchholz, Jörg.

2012. Abstract from 35th MidWinter Meeting of the Association for Research in Otolaryngology, San Diego, CA, United States.

Publication: Research - peer-reviewConference abstract for conference – Annual report year: 2012

Harvard

Dau, T, Catic, J, Santurette, S & Buchholz, J 2012, 'Effects of Interaural Level and Time Differences on the Externalization of Sound' 35th MidWinter Meeting of the Association for Research in Otolaryngology, San Diego, CA, United States, 25/02/12 - 29/02/12,

APA

Dau, T., Catic, J., Santurette, S., & Buchholz, J. (2012). Effects of Interaural Level and Time Differences on the Externalization of Sound. Abstract from 35th MidWinter Meeting of the Association for Research in Otolaryngology, San Diego, CA, United States.

CBE

Dau T, Catic J, Santurette S, Buchholz J. 2012. Effects of Interaural Level and Time Differences on the Externalization of Sound. Abstract from 35th MidWinter Meeting of the Association for Research in Otolaryngology, San Diego, CA, United States.

MLA

Vancouver

Dau T, Catic J, Santurette S, Buchholz J. Effects of Interaural Level and Time Differences on the Externalization of Sound. 2012. Abstract from 35th MidWinter Meeting of the Association for Research in Otolaryngology, San Diego, CA, United States.

Author

Dau, Torsten; Catic, Jasmina; Santurette, Sébastien; Buchholz, Jörg / Effects of Interaural Level and Time Differences on the Externalization of Sound.

2012. Abstract from 35th MidWinter Meeting of the Association for Research in Otolaryngology, San Diego, CA, United States.

Publication: Research - peer-reviewConference abstract for conference – Annual report year: 2012

Bibtex

@misc{f2acc53401ef4d1ab74d125ad1c25bc3,
title = "Effects of Interaural Level and Time Differences on the Externalization of Sound",
author = "Torsten Dau and Jasmina Catic and Sébastien Santurette and Jörg Buchholz",
note = "ARO Abstracts, Volume 35, p. 229, 2012",
year = "2012",
type = "ConferencePaper <importModel: ConferenceImportModel>",

}

RIS

TY - ABST

T1 - Effects of Interaural Level and Time Differences on the Externalization of Sound

A1 - Dau,Torsten

A1 - Catic,Jasmina

A1 - Santurette,Sébastien

A1 - Buchholz,Jörg

AU - Dau,Torsten

AU - Catic,Jasmina

AU - Santurette,Sébastien

AU - Buchholz,Jörg

PY - 2012

Y1 - 2012

N2 - Distant sound sources in our environment are perceived as <br/>externalized and are thus properly localized in both <br/>direction and distance. This is due to the acoustic filtering <br/>by the head, torso, and external ears, which provides <br/>frequency dependent shaping of binaural cues, such as <br/>interaural level differences (ILDs) and interaural time <br/>differences (ITDs). Further, the binaural cues provided by <br/>reverberation in an enclosed space may also contribute to <br/>externalization. While these spatial cues are available in <br/>their natural form when listening to real-world sound <br/>sources, hearing-aid signal processing - such as wide <br/>dynamic range compression - affects the ILDs and thereby <br/>potentially reduces the perceived degree of <br/>externalization. In the present study, the effect of room <br/>reverberation on the spectro-temporal behavior of ILDs <br/>was investigated. This was done by analyzing speech <br/>played at different distances and recorded on a head-andtorso <br/>simulator in a standard IEC 268-13 listening room. <br/>Next, the effect of ILD fluctuations on the degree of <br/>externalization was investigated in a listening experiment <br/>with normal-hearing listeners. The experiment was <br/>performed in the same standard listening room and a <br/>distant speech source was simulated via headphones <br/>using individual binaural impulse responses. The speech <br/>signal was then processed such that the naturally <br/>occurring ILD fluctuations were compressed. This <br/>manipulation reduced the perceived degree of <br/>externalization in the listening experiment, which <br/>is consistent with the physical analysis that showed that a <br/>decreased distance to the sound source also reduced the <br/>fluctuations in ILDs.

AB - Distant sound sources in our environment are perceived as <br/>externalized and are thus properly localized in both <br/>direction and distance. This is due to the acoustic filtering <br/>by the head, torso, and external ears, which provides <br/>frequency dependent shaping of binaural cues, such as <br/>interaural level differences (ILDs) and interaural time <br/>differences (ITDs). Further, the binaural cues provided by <br/>reverberation in an enclosed space may also contribute to <br/>externalization. While these spatial cues are available in <br/>their natural form when listening to real-world sound <br/>sources, hearing-aid signal processing - such as wide <br/>dynamic range compression - affects the ILDs and thereby <br/>potentially reduces the perceived degree of <br/>externalization. In the present study, the effect of room <br/>reverberation on the spectro-temporal behavior of ILDs <br/>was investigated. This was done by analyzing speech <br/>played at different distances and recorded on a head-andtorso <br/>simulator in a standard IEC 268-13 listening room. <br/>Next, the effect of ILD fluctuations on the degree of <br/>externalization was investigated in a listening experiment <br/>with normal-hearing listeners. The experiment was <br/>performed in the same standard listening room and a <br/>distant speech source was simulated via headphones <br/>using individual binaural impulse responses. The speech <br/>signal was then processed such that the naturally <br/>occurring ILD fluctuations were compressed. This <br/>manipulation reduced the perceived degree of <br/>externalization in the listening experiment, which <br/>is consistent with the physical analysis that showed that a <br/>decreased distance to the sound source also reduced the <br/>fluctuations in ILDs.

ER -