Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
Imperceptible Echo for Robust Audio Watermarking
In echo watermarking, effort to improve robustness often conflicts with the requirement of imperceptibility. They have been inherent trade-offs in general audio watermarking techniques. In this paper, we challenge to the development of imperceptible but detectable echo kernels being directly embedded into the high-quality audio signal. Mathematical and perceptual characteristics of echo kernels are analyzed in frequency domain. Finally, we can obtain much flat frequency response in perceptually significant bands by combining closely located positive and negative echoes. The proposed echo makes it possible to improve the robustness of echo watermark without breaking the imperceptibility.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.