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Audio watermarking using time frequency compression expansion

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Audio watermarking using time frequency compression expansion

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Title: Audio watermarking using time frequency compression expansion
Author: Foo, Say Wei; Ho, Shuet Mun; Ng, Ling Mei
Copyright year: 2004
Abstract: A novel non-blind digital audio watermarking scheme using time-frequency based operations is presented. The digital audio samples are first segmented into frames and the frames are transformed into the frequency domain. Frequency components are then added or removed. The amplitude of the components added or removed are determined under the guidance of Psychoacoustic Model I. Inverse transform is then performed to restore it back to a time domain signal which is a lengthened (expanded) or shortened (compressed) version of the original. The expanded or compressed frames are then used to code the watermark to be embedded. Informal listening reveals that there is no perceptible distortion of the audio signal for suitably compressed or expanded segments. Recovery of watermark is perfect for signals not subjected to attacks. Experimental results also show a high degree of successful recovery of the signature that allows conclusive authentication of the owner even after filtering, cropping, MPEG compression, resampling and the addition of noise.
Subject: DRNTU::Engineering::Electrical and electronic engineering::Electronic systems
Type: Conference Paper
Conference name: IEEE International Symposium on Circuits and Systems (2004 : Vancouver, Canada)
School: School of Electrical and Electronic Engineering
Rights: ©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. http://www.ieee.org/portal/site
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