WHAM: To Asymmetry and Beyond!

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Dring, M. and Wiggins, Bruce 2021. WHAM: To Asymmetry and Beyond! Institute of Acoustics.
AuthorsDring, M. and Wiggins, Bruce
Abstract

Auralisation of acoustic spaces is a tool used in many industries. To provide a truly representative result, the systems used must capture and deliver critical, dynamic, psychoacoustic cues that react to the listeners head position. The WHAM (Webcam Head-tracked Ambisonics) website (www.brucewiggins.co.uk/WHAM) utilises webcams to provide auralisation that reacts to head rotation via the browser using standard HRTF data; visitors to the site can experience very high order horizontal only Ambisonic to binaural presentation of room responses. In its initial inception, orders were limited to 7th order asymmetry for the final binaural presentation, which previous research has shown to fall below a transparent perceptual threshold compared to orders up to 31st. This paper documents the developments to deliver beyond 7th order and improvements in functionality made to the WHAM website and open-source JS Ambisonics software library, that continue to make it a useful remote resource for acoustic auralisation purposes.

KeywordsAmbisonics; Immersive Audio; Binaural; Surround Sound
Year2021
JournalProceedings of the Institute of Acoustics
PublisherInstitute of Acoustics
Web address (URL)http://hdl.handle.net/10545/626159
hdl:10545/626159
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Publication dates18 Nov 2021
Publication process dates
Deposited13 Dec 2021, 14:50
Accepted05 Nov 2021
ContributorsUniversity of Derby
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