Title :
Audio watermarking by time-scale modification
Author :
Mansour, Mohamed F. ; Tewfik, Ahmed H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
A new algorithm for audio watermarking is proposed. The basic idea of the algorithm is to change the length of the intervals between salient points of the audio signal to embed data. We propose several novel ideas for practical implementations that can be used by other watermarking schemes as well. The algorithm is robust to common audio processing operations e.g. MP3 lossy compression, low pass filtering, and time-scale modification. The watermarked signal has very high perceptual quality and is indistinguishable from the original signal
Keywords :
audio coding; copy protection; quantisation (signal); MP3 lossy compression; adaptive quantization steps; audio processing operations; audio watermarking; copyright protection; data embedding; digital media; low pass filtering; nonorthogonal wavelet extrema; perceptual quality; signal salient point intervals; time-scale modification; Copyright protection; Filtering algorithms; Low pass filters; Quantization; Robustness; Signal processing; Signal processing algorithms; Spline; Watermarking; Wavelet transforms;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.941179
