Acoustic Source Localisation In An Urban Environment Using Early Reflection Information (Invited Paper)

Francis Stevens; Damian Thomas Murphy

Acoustic Source Localisation In An Urban Environment Using Early Reflection Information (Invited Paper)

Electronic Engineering

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

Abstract

Acoustic source localisation is the use of recorded information to determine the point of origin of a given sound. It has applications in military threat detection, forensics, and the study of environmental acoustics. Impulse responses recorded in a semi-enclosed urban environment have shown early reflections to be the dominant acoustic feature, with the majority of directional information present in the horizontal plane. This paper presents a source localisation algorithm that uses this information. Spatial Impulse Response Rendering analysis is used to extract reflection information from B-format impulse response measurements. Reverse ray-tracing is then used with a 2D geometric representation of the environment to estimate the source position. When used for recordings made in an enclosed and highly reverberant environment, the localisation performance suffers due to the lack of highly distinct early reflections.

Original language	English
Publication status	Published - 31 May 2015
Event	EuroNoise 2015 - Maastricht, Netherlands Duration: 31 May 2015 → 3 Jun 2015

Conference

Conference	EuroNoise 2015
Country/Territory	Netherlands
City	Maastricht
Period	31/05/15 → 3/06/15

Keywords

acoustics
audio
noise
environment

Access to Document

http://www.euronoise2015.eu/

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 = "Acoustic Source Localisation In An Urban Environment Using Early Reflection Information (Invited Paper)",

abstract = "Acoustic source localisation is the use of recorded information to determine the point of origin of a given sound. It has applications in military threat detection, forensics, and the study of environmental acoustics. Impulse responses recorded in a semi-enclosed urban environment have shown early reflections to be the dominant acoustic feature, with the majority of directional information present in the horizontal plane. This paper presents a source localisation algorithm that uses this information. Spatial Impulse Response Rendering analysis is used to extract reflection information from B-format impulse response measurements. Reverse ray-tracing is then used with a 2D geometric representation of the environment to estimate the source position. When used for recordings made in an enclosed and highly reverberant environment, the localisation performance suffers due to the lack of highly distinct early reflections.",

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author = "Francis Stevens and Murphy, {Damian Thomas}",

year = "2015",

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language = "English",

note = "EuroNoise 2015 ; Conference date: 31-05-2015 Through 03-06-2015",

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T1 - Acoustic Source Localisation In An Urban Environment Using Early Reflection Information (Invited Paper)

AU - Stevens, Francis

AU - Murphy, Damian Thomas

PY - 2015/5/31

Y1 - 2015/5/31

N2 - Acoustic source localisation is the use of recorded information to determine the point of origin of a given sound. It has applications in military threat detection, forensics, and the study of environmental acoustics. Impulse responses recorded in a semi-enclosed urban environment have shown early reflections to be the dominant acoustic feature, with the majority of directional information present in the horizontal plane. This paper presents a source localisation algorithm that uses this information. Spatial Impulse Response Rendering analysis is used to extract reflection information from B-format impulse response measurements. Reverse ray-tracing is then used with a 2D geometric representation of the environment to estimate the source position. When used for recordings made in an enclosed and highly reverberant environment, the localisation performance suffers due to the lack of highly distinct early reflections.

AB - Acoustic source localisation is the use of recorded information to determine the point of origin of a given sound. It has applications in military threat detection, forensics, and the study of environmental acoustics. Impulse responses recorded in a semi-enclosed urban environment have shown early reflections to be the dominant acoustic feature, with the majority of directional information present in the horizontal plane. This paper presents a source localisation algorithm that uses this information. Spatial Impulse Response Rendering analysis is used to extract reflection information from B-format impulse response measurements. Reverse ray-tracing is then used with a 2D geometric representation of the environment to estimate the source position. When used for recordings made in an enclosed and highly reverberant environment, the localisation performance suffers due to the lack of highly distinct early reflections.

KW - acoustics

KW - audio

KW - noise

KW - environment

M3 - Paper

T2 - EuroNoise 2015

Y2 - 31 May 2015 through 3 June 2015

ER -

Acoustic Source Localisation In An Urban Environment Using Early Reflection Information (Invited Paper)

Abstract

Conference

Keywords

Access to Document

Datasets

OpenAIR - The Open Acoustic Impulse Response Library

Cite this