Saeed Sedghi Morteza Khademi Nedeljko Cvejic Channel Capacity Analysis of Spread Spectrum Audio Watermarking for Noisy Environments. 33-36 2006 conf/iih-msp/2006 IIH-MSP http://doi.ieeecomputersociety.org/10.1109/IIH-MSP.2006.70 db/conf/iih-msp/iih-msp2006.html#SedghiKC06