[Ham-Computers] Sound card calibration question

[Dave 'Doc' Corio]

    Hoping someone can explain this to me so I can get it into my thick 
skull.

    I've calibrated my sound card (Diamond PCI) two ways, using MMSSTV 
at 48000 Hz, and MMTTY at 11025 Hz. Here are the results of the calibration:

MMSSTV   195 PPM      48009.37

MMTTY      6984 PPM   11102

    This seems to be a huge discrepancy, but that's where I start 
getting confused. Does this simply mean the card works better at 48 Khz? 
It is rated at 16 Bit, 48 Khz record and playback.

    These calibrations have been done multiple times over the past week 
and are consistent every time calibration is run.

Thanks for any input

73
Dave
KB3MOW