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Engineering Brief

SALTE Pt. 2: On the Design of the SALTE Audio Rendering Engine for Spatial Audio Listening Tests in VR

Authors: Rudzki, Tomasz; Earnshaw, Chris; Murphy, Damian; Kearney, Gavin

AES Convention 147 · Paper 537 · October 2019

Abstract

The dedicated audio rendering engine for conducting listening experiments using the SALTE (Spatial Audio Listening Test Environment) open-source virtual reality framework is presented. The renderer can be used for controlled playback of Ambisonic scenes (up to 7th order) over headphones and loudspeakers. Binaural-based Ambisonic rendering facilitates the use of custom HRIRs contained within separate WAV ?les or SOFA ?les as well as head tracking. All parameters of the audio rendering software can be controlled in real-time by the SALTE graphical user interface. This allows for perceptual evaluation of Ambisonic scenes and different decoding schemes using custom HRTFs.

Details

Published in
AES Convention 147
AES Convention
147
Paper number
537
Publication date
October 6, 2019
Session subject
Posters: Spatial Audio
Affiliation
University of York, York, UK (See document for exact affiliation information.)
Type
Engineering Brief