create two sine waves of the same frequency(1-10KHz),which could be sent on to two different channels and i should be able to manipulate the phase and the amplitude of these signals, individually.should be able to phase lock these two signals if required.You would have to use two Dac cards with synchronization between the two through the I/O. I have not seen a DAC card that will generate two independently controlled signals so, running two would simplify the hardware configuration since you would have a separate Vi's with a synchronization.
Sorry that I cannot give you more data since my group is now working on the same problem.
