Multi-microphone approach for reliable acoustic data transmission

Acoustic data transmission (ADT) is a branch of the audio data hiding techniques enabling data communication in short-range aerial space between a loudspeaker and a microphone. In this paper, we extend ADT method to a multichannel approach utilizing multiple microphones in order to enhance transmiss...

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Bibliographic Details
Main Authors: Cho, Kiho, Baek, Soonho, Moon, Han-gil, Kim, Nam Soo
Format: Conference Proceeding
Language:English
Subjects:
Acoustics
Channel estimation
Channels
Conferences
Consumption
Data communication
Data transmission
Electronics
Loudspeakers
Microphones
Multichannel
Receivers
Synchronization
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Summary:Acoustic data transmission (ADT) is a branch of the audio data hiding techniques enabling data communication in short-range aerial space between a loudspeaker and a microphone. In this paper, we extend ADT method to a multichannel approach utilizing multiple microphones in order to enhance transmission reliability while ensuring compatibility with the previous single-microphone receiver. In the proposed multichannel method, the data coefficients obtained from each channel are linearly combined with weighting factors determined based on the Wiener-type channel estimation. From the experimental results, the proposed multichannel method has been shown to be effective in reducing bit errors in reverberant environments.
ISSN:2158-4001
DOI:10.1109/ICCE.2016.7430730