watermarking definition
watermarking. ’ means the act of embedding infor-
watermarking. It consists in embedding an extra signal into a digital music work so this signal can be detected when the work is reproduced. Watermarking requires the use of watermarked audio references when broadcasting which is very rare. Also, the extra signal can easily be removed from original audio. 20 Fingerprinting: It consists in an algorithm that extracts the main features of an audio piece making a so-called ngerprint of the track. This ngerprint may easily be matched against an audio database which may comprise recordings from television, radio or internet radio broadcasts. 21 [3] [17]