Spatial impulse response measurement in an urban environment

Damian Thomas Murphy; Francis Kit Murfin Stevens

Spatial impulse response measurement in an urban environment

Damian Thomas Murphy, Francis Kit Murfin Stevens

Electronic Engineering

Research output: Contribution to conference › Paper › peer-review

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.

Original language	English
Number of pages	8
Publication status	Published - 27 Aug 2014
Event	Spatial Audio, AES 55th International Conference - Helsinki, Finland Duration: 27 Aug 2014 → 29 Aug 2014

Conference

Conference	Spatial Audio, AES 55th International Conference
Country/Territory	Finland
City	Helsinki
Period	27/08/14 → 29/08/14

Keywords

impulse responses
urban acoustics
environmental sound
auralisation

Access to Document

Stevens_2014.pdfSubmitted manuscript, 941 KB

http://www.aes.org/e-lib/browse.cfm?elib=17355

OpenAIR - The Open Acoustic Impulse Response Library
Murphy, D. T. (Creator), OpenAIR website, 1 Sept 2010
http://www.openairlib.net/
Dataset

Cite this

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title = "Spatial impulse response measurement in an urban environment",

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.",

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T1 - Spatial impulse response measurement in an urban environment

AU - Murphy, Damian Thomas

AU - Stevens, Francis Kit Murfin

PY - 2014/8/27

Y1 - 2014/8/27

N2 - 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.

AB - 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.

KW - impulse responses

KW - urban acoustics

KW - environmental sound

KW - auralisation

M3 - Paper

T2 - Spatial Audio, AES 55th International Conference

Y2 - 27 August 2014 through 29 August 2014

ER -

Spatial impulse response measurement in an urban environment

Abstract

Conference

Keywords

Access to Document

Datasets

OpenAIR - The Open Acoustic Impulse Response Library

Cite this