The present invention related generally to audio encoding and decoding. Various arrangements are disclosed. One method obtains audio, wherein authorized or original audio comprises in-band information and associated out-of-band information; searches for out-of-band information associated with obtained...http://www.google.fr/patents/US7702511?utm_source=gb-gplus-shareBrevet US7702511 - Watermarking to convey auxiliary information, and media embodying same
Watermarking to convey auxiliary information, and media embodying same
