The Perceptual Effect of Vertical Interchannel Decorrelation on Vertical Image Spread at Different Azimuth Positions

Christopher Gribben, Hyunkook Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Two subjective experiments have been conducted to investigate the effect of vertical interchannel decorrelation on the perception of vertical image spread (VIS). Pairs of vertically arranged loudspeakers, one at ear level and another elevated by 30°, were positioned at 0°, ±30° and ±110° azimuth to the listener. The first experiment compared octave-band pink noise stimuli, consisting of two decorrelation methods with three levels of interchannel cross-correlation (ICC), a coherent sample and a monophonic sample. The effect of vertical ICC on VIS perception was found to be most effective for frequencies around 500Hz and above, with little effect at lower frequencies. The second experiment judged the absolute lower and upper boundaries of perceived VIS, using stimuli from the first experiment, showing a potential association between VIS and vertical localisation.

Original languageEnglish
Title of host publication142nd Audio Engineering Society International Convention 2017
PublisherAudio Engineering Society
Pages506-515
Number of pages10
ISBN (Print)9781510843523
Publication statusPublished - 11 May 2017
Event142nd Audio Engineering Society International Convention 2017 - Maritim Hotel Berlin, Berlin, Germany
Duration: 20 May 201723 May 2017
Conference number: 142
http://www.aes.org/events/142/ (Link to Conference Website)

Conference

Conference142nd Audio Engineering Society International Convention 2017
Abbreviated titleAES 2017
CountryGermany
CityBerlin
Period20/05/1723/05/17
Internet address

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