A new method is proposed for robust audio watermarking using direct-sequence spread
spectrum in combination with the subband decomposition of the audio signal. The method
exploits the frequency masking characteristics of the human auditory system (HAS) and
inserts the watermark into a randomly selected frequency band of the input audio signal.
Performance of the proposed system is evaluated for robustness to signal manipulations
such as contamination with additive noise, resampling, compression, filtering, multiple …

A novel audio watermarking scheme based on frequency-selective spread spectrum (FSSS)
technique is presented. Unlike most of the existing spread spectrum (SS) watermarking
schemes that use the entire audible frequency range for watermark embedding, the
proposed scheme randomly selects subband (s) signal (s) of the host audio signal for
watermark embedding. The proposed FSSS scheme provides a natural mechanism to
exploit the band-dependent frequency-masking characteristics of the human auditory system …