TY - GEN

T1 - A beamforming system based on the acousto-optic effect

A1 - Torras Rosell,Antoni

A1 - Barrera Figueroa,Salvador

A1 - Jacobsen,Finn

AU - Torras Rosell,Antoni

AU - Barrera Figueroa,Salvador

AU - Jacobsen,Finn

PB - European Acoustics Association

PY - 2012

Y1 - 2012

N2 - Beamforming techniques are usually based on microphone arrays. The present work uses a beam of light as a sensor element, and describes a beamforming system that locates sound sources based<br/>on the acousto-optic effect, this is, the interaction between sound and light. The use of light as a sensing element makes this method immune to spatial aliasing. This feature is illustrated by means of<br/>simulation and experimental results. For ease of comparison, the study is supplemented with results obtained with a line array of microphones

AB - Beamforming techniques are usually based on microphone arrays. The present work uses a beam of light as a sensor element, and describes a beamforming system that locates sound sources based<br/>on the acousto-optic effect, this is, the interaction between sound and light. The use of light as a sensing element makes this method immune to spatial aliasing. This feature is illustrated by means of<br/>simulation and experimental results. For ease of comparison, the study is supplemented with results obtained with a line array of microphones

KW - Acoustic variables control

KW - Microphones

KW - Beamforming

KW - Acousto-optic effect

KW - Beamforming technique

KW - Line arrays

KW - Microphone arrays

KW - Sensing elements

KW - Sensor elements

KW - Sound source

KW - Spatial aliasing.

SN - 978-80-01-05013-2

BT - Proceedings - European Conference on Noise Control

T2 - Proceedings - European Conference on Noise Control

SP - 1048

EP - 1053

ER -