A computer-implemented method and apparatus for embedding hidden data in an audio signal. An audio signal is received in a base domain and then transformed into a non-base domain, such as cepstrum domain or LP residue domain. The statistical mean manipulation is employed on selected transform coefficients...http://www.google.de/patents/US7058570?utm_source=gb-gplus-sharePatent US7058570 - Computer-implemented method and apparatus for audio data hiding
