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Convention Paper

Perception of Phase Changes in the Context of Musical Audio Source Separation

Authors: Kim, Chungeun; Grais, Emad M.; Mason, Russell; Plumbley, Mark D.

AES Convention 145 · Paper 10031 · October 2018

Abstract

This study investigates into the perceptual consequence of phase change in conventional magnitude-based source separation. A listening test was conducted, where the participants compared three different source separation scenarios, each with two phase retrieval cases: phase from the original mix or from the target source. The participants’ responses regarding their similarity to the reference showed that (1) the difference between the mix phase and the perfect target phase was perceivable in the majority of cases with some song-dependent exceptions, and (2) use of the mix phase degraded the perceived quality even in the case of perfect magnitude separation. The findings imply that there is room for perceptual improvement by attempting correct phase reconstruction in addition to achieving better magnitude-based separation.

Details

Published in
AES Convention 145
AES Convention
145
Paper number
10031
Publication date
October 6, 2018
Session subject
Perception – Part 1
Affiliation
University of Surrey, Guildford, Surrey, UK (See document for exact affiliation information.)
Type
Convention Paper