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Effects of reverberation and binaural sensitivity on spatial release from masking.

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Title: Effects of reverberation and binaural sensitivity on spatial release from masking.
Authors: Momtaz, Sara1 (AUTHOR), Williams, Brittany T.1 (AUTHOR), Miller, Margaret K.1 (AUTHOR), Bologna, William J.2 (AUTHOR), Koerner, Tess K.3,4 (AUTHOR), Lelo de Larrea-Mancera, E. Sebastian5 (AUTHOR), Seitz, Aaron R.5 (AUTHOR), Gallun, Frederick J.4 (AUTHOR), Stecker, G. Christopher1 (AUTHOR) cstecker@spatialhearing.org
Source: Journal of the Acoustical Society of America. Oct2025, Vol. 158 Issue 4, p3592-3604. 13p.
Subjects: Sound reverberation, Interaural time difference, Directional hearing, Noise, Auditory perception
Abstract: The impacts of reverberation and binaural sensitivity on spatial release from masking (SRM) were assessed in an adaptive speech-in-speech recognition task with open-set sentence targets presented in continuous narrative speech maskers. Forty young adults with normal hearing (ages 19–55 years old) completed the speech task. Under anechoic conditions, target speech and two masker streams were presented from a single frontal loudspeaker (co-located) or three loudspeakers separated by 45° (separated). In simulated reverberant conditions, reflections were calculated via a modified source image model (10 m × 10 m; 0.4 s reverberation time) and presented throughout 360° of azimuth. Interaural time difference (ITD) and interaural level difference (ILD) discrimination thresholds were separately measured over headphones using a speech-based two-alternative forced choice task. Reverberation elevated speech reception thresholds (SRTs) and reduced SRM by 5.4 dB on average. Individual ITD thresholds were significantly associated with separated SRT but not with SRM—likely as a result of intercorrelation between co-located and separated scores. The overall results corroborate prior reports of roughly 5 dB SRM reduction in reverberation, and also provide evidence for individual ITD sensitivity as a predictor of spatial speech perception in noise, which may be obscured in analyses that focus only on difference scores such as SRM. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the Acoustical Society of America is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 189039840
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
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  Data: Effects of reverberation and binaural sensitivity on spatial release from masking.
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  Data: <searchLink fieldCode="AR" term="%22Momtaz%2C+Sara%22">Momtaz, Sara</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Williams%2C+Brittany+T%2E%22">Williams, Brittany T.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Miller%2C+Margaret+K%2E%22">Miller, Margaret K.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bologna%2C+William+J%2E%22">Bologna, William J.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Koerner%2C+Tess+K%2E%22">Koerner, Tess K.</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lelo+de+Larrea-Mancera%2C+E%2E+Sebastian%22">Lelo de Larrea-Mancera, E. Sebastian</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Seitz%2C+Aaron+R%2E%22">Seitz, Aaron R.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gallun%2C+Frederick+J%2E%22">Gallun, Frederick J.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Stecker%2C+G%2E+Christopher%22">Stecker, G. Christopher</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> cstecker@spatialhearing.org</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+Acoustical+Society+of+America%22">Journal of the Acoustical Society of America</searchLink>. Oct2025, Vol. 158 Issue 4, p3592-3604. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Sound+reverberation%22">Sound reverberation</searchLink><br /><searchLink fieldCode="DE" term="%22Interaural+time+difference%22">Interaural time difference</searchLink><br /><searchLink fieldCode="DE" term="%22Directional+hearing%22">Directional hearing</searchLink><br /><searchLink fieldCode="DE" term="%22Noise%22">Noise</searchLink><br /><searchLink fieldCode="DE" term="%22Auditory+perception%22">Auditory perception</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The impacts of reverberation and binaural sensitivity on spatial release from masking (SRM) were assessed in an adaptive speech-in-speech recognition task with open-set sentence targets presented in continuous narrative speech maskers. Forty young adults with normal hearing (ages 19–55 years old) completed the speech task. Under anechoic conditions, target speech and two masker streams were presented from a single frontal loudspeaker (co-located) or three loudspeakers separated by 45° (separated). In simulated reverberant conditions, reflections were calculated via a modified source image model (10 m × 10 m; 0.4 s reverberation time) and presented throughout 360° of azimuth. Interaural time difference (ITD) and interaural level difference (ILD) discrimination thresholds were separately measured over headphones using a speech-based two-alternative forced choice task. Reverberation elevated speech reception thresholds (SRTs) and reduced SRM by 5.4 dB on average. Individual ITD thresholds were significantly associated with separated SRT but not with SRM—likely as a result of intercorrelation between co-located and separated scores. The overall results corroborate prior reports of roughly 5 dB SRM reduction in reverberation, and also provide evidence for individual ITD sensitivity as a predictor of spatial speech perception in noise, which may be obscured in analyses that focus only on difference scores such as SRM. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the Acoustical Society of America is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=189039840
RecordInfo BibRecord:
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        Value: 10.1121/10.0039576
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      – Code: eng
        Text: English
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        PageCount: 13
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      – SubjectFull: Sound reverberation
        Type: general
      – SubjectFull: Interaural time difference
        Type: general
      – SubjectFull: Directional hearing
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      – SubjectFull: Noise
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      – SubjectFull: Auditory perception
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      – TitleFull: Effects of reverberation and binaural sensitivity on spatial release from masking.
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              Text: Oct2025
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              Y: 2025
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