incoming data from AIC transferring on parallel port

hello,
i am working on TMS320VC33 UNIVERSITY DSK KIT.
i am trying to send the real time data on parallel port which is coming from AIC PCM 3003. I have written a code in assembly. In that code i just directly write the data on parallel port which is in serial port receive register. Byte wise data is transferred on parallel port. i receive that data on system and convert that DAT file into WAVE file, but when we play that WAVE file only noise is there.
I dont know where is the problem.I will be highly obliged if anyone can help me out.

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