NDLI: Effect of latency time in high frequencies on sound localization

Content Provider	IEEE Xplore Digital Library
Author	Evelkin, V. Cohen, I.
Copyright Year	2012
Description	Author affiliation: Electrical Engineering Department, Technion - Israel Institute of Technology (Evelkin, V.; Cohen, I.)
Abstract	Tactical military headsets allow hearing protection and communication between soldiers using surround technology. In this paper, we investigate the effect of latency time between low and high frequencies on the ability of a person to correctly identify an external sound source direction with tactical military headsets. The latency time between low and high frequencies results from a digital processing unit. Low frequencies from an external sound source are not processed; therefore, they are received in the ear canal before the digitally processed higher frequencies. Two experiments were conducted using non-individualized Head Related Transfer Function and headphones for trained and untrained volunteers. The experiments were done for two types of sources: human speech and white Gaussian noise, and were performed with latency times of zero, 20msec, and 40msec applied to frequencies below 20Hz. The experimental results show that the errors in sound localization accuracy in both experiments are fewer for signals without latency time, compared to processed signals with latency times between low and high frequencies.
Starting Page	1
Ending Page	4
File Size	448347
Page Count	4
File Format	PDF
ISBN	9781467346825
e-ISBN	9781467346818
DOI	10.1109/EEEI.2012.6376949
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-14
Publisher Place	Israel
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Headphones Speech White noise Time frequency analysis Delay Ear Auditory system
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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