iam doing a mini project in audio watermarking using matlab. i heard there are 3 methods like spread spectrum, echo hiding and phase encoding to do this watermarking . please tell me which one is suitable to do this in matlab and help me with matlab algorithm and source code.
with regards ,
ARJUN

 

Done any research? - http://www.ece.uvic.ca/~aupward/w/watermarking.htm