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Conference Paper

Spatial Impulse Response Measurement in an Urban Environment

Authors: Stevens, Francis; Murphy, Damian

AES Conference: 55th International Conference: Spatial Audio · Paper 4-4 · August 2014

Abstract

Acoustic impulse responses are used for multiple applications in sound design and auralisation. They are often recorded in real-world environments, and through the use of convolution can provide realistic reverberation effects. Analysis of impulse responses can provide insight into the acoustic behaviour of the recording location. Previous work on impulse response recording has focused on indoor environments. This work presents results of an acoustic survey conducted in a semi-enclosed outdoor courtyard. Impulse responses were measured using a B-format microphone to capture spatial information. Both a starter pistol and a loudspeaker reproducing swept-sine waves were used as the excitation source. The results are analysed regarding their spatial and reverberation characteristics. This work is part of a wider study investigating acoustic impulse responses from multiple outdoor locations, and aims to evaluate the performance of impulse response recording methods in an outdoor environment.

Details

Published in
AES Conference: 55th International Conference: Spatial Audio
Paper number
4-4
Publication date
August 6, 2014
Session subject
Spatial Audio Engineering
Affiliation
University of York, York, UK (See document for exact affiliation information.)
Type
Conference Paper