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Engineering Brief

A Basic Study of the Upmix Method for 22.2 Multichannel Sound

Authors: Kamekawa, Toru; Marui, Atsushi

AES Convention 142 · Paper 350 · May 2017

Abstract

The upmix technique to 22.2 multichannel sound from 9 channel, 5 channel, and 3 channel IRs (impulse responses) were studied. The two upmix techniques were used. One is the IRs made from the original IRs converted to phase randomized signals with the same time envelope to original signal and the other is the IRs obtained by simply adding signals of adjacent channels. The experimental stimuli were obtained from these impulse responses convolved to the sound of a xylophone and a female voice recorded in an anechoic room. From the results, there is a tendency of different impression between these two methods, and it is suggested that the phase randomized method may be effective with the case using from less channels.

Details

Published in
AES Convention 142
AES Convention
142
Paper number
350
Publication date
May 6, 2017
Session subject
Spatial Audio, Listening Tests, Systems
Affiliation
Tokyo University of the Arts, Adachi-ku, Tokyo, Japan (See document for exact affiliation information.)
Type
Engineering Brief