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G. Pablo Nava, Y. Kamamoto, TA. G.. Sato, Y. Shiraki, N. Harada, and T. Moriya, "Simultaneous Acquisition of a Massive Number of Audio Channels through Optical Means," Paper 8965, (2013 October.). doi: G. Pablo Nava, Y. Kamamoto, TA. G.. Sato, Y. Shiraki, N. Harada, and T. Moriya, "Simultaneous Acquisition of a Massive Number of Audio Channels through Optical Means," Paper 8965, (2013 October.). doi:
Abstract: Sensing sound fields at multiple locations often may become considerably time consuming and expensive when large wired sensor arrays are involved. Although several techniques have been developed to reduce the number of necessary sensors, less work has been reported on efficient techniques to acquire the data from all the sensors. This paper introduces an optical system, based on the concept of visible light communication, which allows the simultaneous acquisition of audio signals from a massive number of channels via arrays of light emitting diodes (LEDs) and a high speed camera. Similar approaches use LEDs to express the sound pressure of steady state fields as a scaled luminous intensity. The proposed sensor units, in contrast, transmit optically the actual digital audio signal sampled by the microphone in real time. Experiments to illustrate two examples of typical applications are presented: a remote acoustic imaging sensor array and a spot beamforming based on the compressive sampling theory. Implementation issues are also addressed to discuss the potential scalability of the system.

@article{pablo nava2013simultaneous,
author={pablo nava, gabriel and kamamoto, yutaka and sato, takashi g. and shiraki, yoshifumi and harada, noboru and moriya, takehiro},
journal={journal of the audio engineering society},
title={simultaneous acquisition of a massive number of audio channels through optical means},
year={2013},
volume={},
number={},
pages={},
doi={},
month={october},} @article{pablo nava2013simultaneous,
author={pablo nava, gabriel and kamamoto, yutaka and sato, takashi g. and shiraki, yoshifumi and harada, noboru and moriya, takehiro},
journal={journal of the audio engineering society},
title={simultaneous acquisition of a massive number of audio channels through optical means},
year={2013},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={sensing sound fields at multiple locations often may become considerably time consuming and expensive when large wired sensor arrays are involved. although several techniques have been developed to reduce the number of necessary sensors, less work has been reported on efficient techniques to acquire the data from all the sensors. this paper introduces an optical system, based on the concept of visible light communication, which allows the simultaneous acquisition of audio signals from a massive number of channels via arrays of light emitting diodes (leds) and a high speed camera. similar approaches use leds to express the sound pressure of steady state fields as a scaled luminous intensity. the proposed sensor units, in contrast, transmit optically the actual digital audio signal sampled by the microphone in real time. experiments to illustrate two examples of typical applications are presented: a remote acoustic imaging sensor array and a spot beamforming based on the compressive sampling theory. implementation issues are also addressed to discuss the potential scalability of the system.},}

TY - paper
TI - Simultaneous Acquisition of a Massive Number of Audio Channels through Optical Means
SP - EP -
AU - Pablo Nava, Gabriel
AU - Kamamoto, Yutaka
AU - Sato, Takashi G.
AU - Shiraki, Yoshifumi
AU - Harada, Noboru
AU - Moriya, Takehiro
PY - 2013
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2013 TY - paper
TI - Simultaneous Acquisition of a Massive Number of Audio Channels through Optical Means
SP - EP -
AU - Pablo Nava, Gabriel
AU - Kamamoto, Yutaka
AU - Sato, Takashi G.
AU - Shiraki, Yoshifumi
AU - Harada, Noboru
AU - Moriya, Takehiro
PY - 2013
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2013
AB - Sensing sound fields at multiple locations often may become considerably time consuming and expensive when large wired sensor arrays are involved. Although several techniques have been developed to reduce the number of necessary sensors, less work has been reported on efficient techniques to acquire the data from all the sensors. This paper introduces an optical system, based on the concept of visible light communication, which allows the simultaneous acquisition of audio signals from a massive number of channels via arrays of light emitting diodes (LEDs) and a high speed camera. Similar approaches use LEDs to express the sound pressure of steady state fields as a scaled luminous intensity. The proposed sensor units, in contrast, transmit optically the actual digital audio signal sampled by the microphone in real time. Experiments to illustrate two examples of typical applications are presented: a remote acoustic imaging sensor array and a spot beamforming based on the compressive sampling theory. Implementation issues are also addressed to discuss the potential scalability of the system.