open access

https://hdl.handle.net/2115/39681

Imperceptible Data Hiding in MCLT Domain for Acoustic Data Transmission Using Loudspeaker and Microphone

英語

2009-10-04

Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference, International Organizing Committee

Proceedings : APSIPA ASC 2009 : Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference

238-241

APSIPA ASC 2009: Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference. 4-7 October 2009. Sapporo, Japan. Poster session: Audio and Electroacoustics (5 October 2009).

A data hiding technique in a sound wave imperceptibly can be used for a communication system beyond the audio watermarking. The transmitter with a loudspeaker can send the data by playing the sound wave, and the receiver like mobile phone can detect the message using a microphone. This paper proposes an acoustic data transmission system based on the modulated complex lapped transform (MCLT). In the proposed system, data is embedded in an audio wave file by modifying the phases of the MCLT coefficients of the audio wave. The perceived quality of the data-embedded audio wave is almost similar as the original audio. The proposed system is sufficient to deliver short text messages without any additional hardware devices.

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