Based on different physical and psychoacoustic considerations, there are various Ambisonics decoding methods. The perceived performances of reproduction depend on the order and decoding method of Ambisonics. The present paper analyzes and compares the timbre coloration in horizontal Ambisonics with basic, maximize energy location vector (max-rE) and in-phase decoding methods, respectively. The binaural loudness level spectra (BLLS) for Ambisonics reproduction are calculated by using Moore’s revised binaural loudness model and then used as the criterion to evaluate the timbre coloration. Results indicate that, overall, the basic decoding method is superior to the other two methods in terms of the deviation of BLLS. This conclusion is valid for Ambisonics with various orders as well as in the central and off-central listening position.

Authors: Liu, Yang; Xie, Bosun
Affiliations: South China University of Technology, Guangzhou, China; Guoguang Electric Company Limited, Guangzhou, China(See document for exact affiliation information.)
AES Convention: 141 (September 2016) Paper Number: 9677
Publication Date: September 20, 2016
Subject: Spatial Audio and Recording & Production

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