Dear all: 1. I need CELP / MELP source code or program compatible with windows OS. 2. I am implementing a datahiding technique (echo data hiding technique) using simulink. i had already written a code for it. so i need a help in DSP simulink for implementing the technique. 3. i successfully could seperate two mixed sound with FastICA technique, but after applying CELP to the signals, it couldn't be seperated by FASTICA, How could i solve this problem or get modified version of fastICA Thanks, Ann