Investigation on the influence of the interau-ral phase difference on the sound localization and auditory source width at different frequency bands
- Publication Type:
- Conference Proceeding
- 25th International Congress on Sound and Vibration 2018, ICSV 2018: Hiroshima Calling, 2018, 6 pp. 3668 - 3673
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Copyright © (2018) by International Institute of Acoustics & Vibration. All rights reserved. The phase adjustment method is popular to broaden auditory source width (ASW), however, the influence of the interaural phase difference on the changes of sound image at different frequency bands has attracted less attention in recent years. In this paper, the influence of phase adjustment on the sound localization and the ASW at different frequency bands was investigated, the performance of phase adjustment on the sound localization below 1600 Hz was obtained and the variation of the ASW above 1600 Hz was verified. Experimental results show that the sound image moves to one side as the interaural phase difference shifts from 0° to 90° at frequency bands below 1600 Hz, and the ASW broadens at frequency bands above 1600 Hz as the interaural phase difference shifts from 0° to 90°. The maximum angle offset appears at 200-400 Hz and the ASW broadens about 20° at frequency bands above 6400 Hz.
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