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Engineering Brief

A Simple Evaluating Method of a Reproduced Sound Field by a Measurement of Sound Intensities Using Virtual Source Visualizer

Authors: Nakahara, Masataka; Omoto, Akira; Nagatomo, Yasuhiko

AES Convention 143 · Paper 362 · October 2017

Abstract

Recently, many kinds of technologies for restoring/reproducing 3D sound fields are proposed. However, it is little opportunity to compare these acoustic performances under a common condition. Though a subjective evaluation is one of the most effective methods for evaluating reproduced sound fields, it requires careful effort. Therefore, the authors propose an alternative method which requires only a physical measurement of sound intensities. Because the method is based on the intensity analysis, “sound images” are assumed to be “amplitude-based phantom sound sources” here. In order to verify effectiveness of the method, various types of reproduced fields were measured and analyzed. As a result, it is ascertained that the method can evaluate proper features of reproduced sound fields, regardless of their restoring techniques.

Details

Published in
AES Convention 143
AES Convention
143
Paper number
362
Publication date
October 6, 2017
Session subject
Posters—Part 1
Affiliation
ONFUTURE Ltd., Tokyo, Japan; SONA Corp., Tokyo, Japan; Kyushu University, Fukuoka, Japan; Onfuture Ltd., Tokyo, Japan; Evixar Inc., Tokyo, Japan (See document for exact affiliation information.)
Type
Engineering Brief