Praveen,
> Did you verify all the four channels of the Microphone and if you were getting valid data in all of them at the same time in the previous Project that you had sent me.
At the time, I only had a stereo source, but I heard output from Windows when that stereo source was supplied to the L/R input, and to the Ls/Rs input.
I suggest that you load the project I sent into the EVM2 and try it yourself.
Frank