Modified spread spectrum audio watermarking algorithm
Keywords:Algorithms, Bit error rate, Computer simulation, Natural frequencies, Signal distortion, Signal processing, Signal receivers, Signal to noise ratio, Spurious signal noise, Vectors, Audio watermarking, Host signals, Mean opinion score (MOS), Spread spectrum (SS), Transmission noise
AbstractThe conventional spread spectrum (SS) audio watermarking algorithm and its modification are presented. Audio pieces of different genres, sampled at 44.1 kHz, were tested against the watermarking system. It was found that both the host signal and the attacks act as noise in watermark extraction, the host signals affecting the extraction more severely. It was also found that there is an improvement of about 3dB at bit error rate (BER) of 10-5 in the modified system.
How to Cite
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.