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Engineering Brief

Vertical Localization of Noise Bands Pairs by Time-Separation and Frequency Separation

Authors: Zhang, Tao; Kamekawa, Toru; Marui, Atsushi

AES Convention 146 · Paper 514 · March 2019

Abstract

This study investigates how the vertical localization of the low-frequency is released from the domination of the high-frequency sound. Four different noise band pairs were used. They consist of a low-frequency band and a high-frequency band with different cut off frequency, and the low-frequency band was reproduced with a delay time of 25 ms to 200 ms to the high-frequency band. These stimuli were presented from one of five full-range speakers with different elevation set in the median plane. The speakers cover an upper vertical angle of 30 degrees and a lower vertical angle of 30 degrees. The subjects answered both the vertical sound image localization and the sound image width of the low-frequency band and the high-frequency band, respectively. As a result, while the high-frequency band was localized at the actual reproduction position, the low-frequency band showed a tendency of different vertical localization depending on the reproduction position. This tendency of the low-frequency band depending on the reproduction position was shown: in 30°, 15°, and 30°. As the delay time increased, the offset (deviation from the reproducing position) also increased, but the direction of deviation was different.

Details

Published in
AES Convention 146
AES Convention
146
Paper number
514
Publication date
March 6, 2019
Session subject
E-Brief Poster Session 2
Affiliation
Tokyo University of the Arts, Adachi-ku, Tokyo, Japan (See document for exact affiliation information.)
Type
Engineering Brief