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Findings from T. Bliem and Co-Authors Provide New Insights into Audio Engineering

January 22, 2014

By a News Reporter-Staff News Editor at Journal of Engineering -- Research findings on Audio Engineering are discussed in a new report. According to news reporting originating in Erlangen, Germany, by VerticalNews journalists, research stated, "Digital audio watermarking is one of the many technologies that evolved in response to the recent fast expansion in the area of digital information transmission and multimedia. In fact, the possibility to robustly hide information in an audio signal has many applications, such as protection of intellectual property, broadcast monitoring, and metadata transmission."

The news reporters obtained a quote from the research, "This article presents an innovative method for watermark embedding in the time-frequency domain using a sparse multicarrier approach. The proposed system involves a watermarked audio signal that is played back by a loudspeaker and picked up by a microphone mounted on a mobile device. The system is built to be used in an enclosed environment such as a room and is therefore designed to be robust against various impairments such as reverberation, microphone self-noise, and movement."

According to the news reporters, the research concluded: "The system robustness is confirmed by performance evaluations, whereas its inaudibility is verified by subjective listening tests."

For more information on this research see: A Robust Audio Watermarking System for Acoustic Channels. Journal of the Audio Engineering Society, 2013;61(11):878-888. Journal of the Audio Engineering Society can be contacted at: Audio Engineering Soc, 60 E 42ND St, New York, NY 10165-2520, USA.

Our news correspondents report that additional information may be obtained by contacting T. Bliem, Fraunhofer Inst Integrated Circuits IIS, Audio Department, D-91058 Erlangen, Germany. Additional authors for this research include G. Del Galdo, J. Borsum, A. Craciun and R. Zitzmann.

Keywords for this news article include: Europe, Germany, Erlangen, Audio Engineering

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Source: Journal of Engineering

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