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Recording techniques and their effect on sound quality at off-center listening positions in 5.0 surround environments

By Nils Peters, Jonas Braasch and Stephen McAdams

Abstract

Assessments of listener preferences for different multichannel recording techniques typically focus on thesweet spot, the spatial area where the listener maintains optimal perception of the reproduced sound field.The purpose of this study is to explore how multichannel recording techniques affect the sound quality atoff-center (non-sweet spot) listening positions in medium-sized rooms. Listening impressions of two musicalexcerpts created by three different multichannel recording techniques for multiple off-center positions arecompared with the impression at the sweet spot in two different listening room environments. The choice ofa recording technique significantly affects the sound quality at off-center positions relative to the sweet spot,and this finding depends on the type of listening environment. In the studio grade listening room environmentfeaturing a standard loudspeaker configuration, the two tested spaced microphone techniques were ratedbetter at off-center positions compared to the coincident Ambisonics technique. For the less controlled roomenvironment, the interaction between recording technique and musical excerpt played a significant role inlistener preference

Topics: Music
Publisher: Canadian Acoustical Association
Year: 2018
OAI identifier: oai:digitool.library.mcgill.ca:149672
Provided by: eScholarship@McGill
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