Issue |
Acta Acust.
Volume 5, 2021
|
|
---|---|---|
Article Number | 43 | |
Number of page(s) | 16 | |
Section | Hearing, Audiology and Psychoacoustics | |
DOI | https://doi.org/10.1051/aacus/2021035 | |
Published online | 14 October 2021 |
Scientific Article
A notched-noise precursor affects both diotic and dichotic notched-noise masking
1
Department of Experimental Audiology, Otto von Guericke University, Leipziger Str. 44, 39120 Magdeburg, Germany
2
Department of Computer Science, University College London, Gower Street, London WC1E 6EA, United Kingdom
* Corresponding author: jesko.verhey@med.ovgu.de
Received:
18
November
2020
Accepted:
2
September
2021
The present study investigates how diotic and dichotic masked thresholds, in a notched-noise masking paradigm, are affected by activation of the Medial OlivoCochlear (MOC) reflex. Thresholds were obtained for a 500-Hz pure tone diotic or a dichotic signal, S (S0 or Sπ respectively), in the presence of a simultaneous or forward diotic masker (bandpass noise with no notch or a 400-Hz notch). A diotic precursor sound (bandpass noise with a 400- or 800-Hz notch) was presented prior to the signal and masker to activate the MOC reflex. For simultaneous- and forward-masking conditions, the decrease in masked thresholds as a notch was introduced in the masker was larger for the diotic than for the dichotic condition. This resulted in a reduced binaural masking level difference (BMLD) for the masker with a notch. The precursor augmented these two effects. The results indicate that the effect of the precursor, eliciting the MOC reflex, is less pronounced when binaural cues are processed.
Key words: Binaural / Masking / Suppression / Auditory frequency selectivity
© F. Dymel et al., Published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.