TY - JOUR
T1 - Speech induced binaural beats
T2 - Electrophysiological assessment of binaural interaction
AU - Schroeer, Andreas
AU - Corona-Strauss, Farah I.
AU - Ozdamar, Ozcan
AU - Bohorquez, Jorge
AU - Strauss, Daniel J.
N1 - Funding Information:
This study was supported by German Federal Ministry of Education and Research Grant No. BMBF-FZ 03FH016PX5. The authors declare no conflict of interest. The authors would like to thank Ilay Caliskan, Fatihan Pinarlik, and Richard Morsch for assisting in data acquisition. Photocopy and color blind friendly color schemes in Figs. 1, 3, and 8 were adapted from Harrower and Brewer (2003).
Publisher Copyright:
© 2021 Acoustical Society of America.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/2/1
Y1 - 2021/2/1
N2 - This paper introduces and evaluates a speech signal manipulation scheme that generates transient speech induced binaural beats (SBBs). These SBBs can only be perceived when different signals are presented dichotically (to both ears). Event-related potentials were recorded in 22 normal-hearing subjects. Dichotic stimulus presentation reliably evoked auditory late responses (ALRs) in all subjects using such manipulated signals. As control measurements, diotic stimulation modalities were presented to confirm that the ALRs were not evoked by the speech signal itself or that the signal manipulation scheme created audible artifacts. Since diotic measurements evoked no ALRs, responses from dichotic stimulation are a pure correlate of binaural interaction. While there are several auditory stimuli (mostly modulated sinusoids or noise) that share this characteristic, none of them are based on running speech. Because SBBs can be added to any arbitrary speech signal, they could easily be combined with psychoacoustic tests, for example speech reception thresholds, adding an objective measure of binaural interaction.
AB - This paper introduces and evaluates a speech signal manipulation scheme that generates transient speech induced binaural beats (SBBs). These SBBs can only be perceived when different signals are presented dichotically (to both ears). Event-related potentials were recorded in 22 normal-hearing subjects. Dichotic stimulus presentation reliably evoked auditory late responses (ALRs) in all subjects using such manipulated signals. As control measurements, diotic stimulation modalities were presented to confirm that the ALRs were not evoked by the speech signal itself or that the signal manipulation scheme created audible artifacts. Since diotic measurements evoked no ALRs, responses from dichotic stimulation are a pure correlate of binaural interaction. While there are several auditory stimuli (mostly modulated sinusoids or noise) that share this characteristic, none of them are based on running speech. Because SBBs can be added to any arbitrary speech signal, they could easily be combined with psychoacoustic tests, for example speech reception thresholds, adding an objective measure of binaural interaction.
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U2 - 10.1121/10.0003442
DO - 10.1121/10.0003442
M3 - Article
C2 - 33639814
AN - SCOPUS:85100408845
VL - 149
SP - 788
EP - 799
JO - Journal of the Acoustical Society of America
JF - Journal of the Acoustical Society of America
SN - 0001-4966
IS - 2
ER -