Title :
An Algorithmic Digital Audio Watermarking in Perceptual Domain Using Direct Sequence Spread Spectrum
Author :
Trivedi, Naresh Kumar ; Trivedi, M.C.
Author_Institution :
Dept. of Inf. Technol., Ideal Inst. of Technol., Ghaziabad, India
Abstract :
In this Paper of audio watermarking we use the direct sequence spread spectrum. Psycho acoustic auditory model is taken for calculating masking threshold of audio signal. Masking threshold is used for shaping the watermark for imperceptibility. The watermark information as bits are taken pseudo random sequence numbers. The embedding algorithm embeds the watermark in the form of bits under the frames the audio to 2048 samples each. The extraction system extracts the watermark from the watermark audio signal by applying linear prediction analysis and filtering with matching procedure.
Keywords :
audio watermarking; code division multiple access; embedded systems; feature extraction; filtering theory; hearing; linear predictive coding; random sequences; audio signal; audio watermarking; direct sequence spread spectrum; embedding algorithm; extraction system; filtering; imperceptibility; linear prediction analysis; masking threshold; pseudo random sequence numbers; psycho acoustic auditory model; watermark information; Filtering; Frequency-domain analysis; Psychoacoustic models; Robustness; Signal processing algorithms; Watermarking; Direct Sequence Spread Spectrum; Human Auditory System; Psuedo Random Sequence;
Conference_Titel :
Communication Systems and Network Technologies (CSNT), 2014 Fourth International Conference on
Conference_Location :
Bhopal
Print_ISBN :
978-1-4799-3069-2
DOI :
10.1109/CSNT.2014.167
