//********************** C-Media AC97 UDA driver Release Note ***********************//

5.12.1.0022
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1. fix the problem that multi-channel audio demo crash

5.12.1.0021
Release date:8/12/2002
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1. fix the click noise while speaker mode swapping (costomer complain the click noise while changing speaker mode)
2. chip version can be get by user mode program (CPL can show chip info by the feature)
3. Alternate MIC (MIC2) support (Advanced button in Microphone source in Mixer)
4. Center/Bass content can be swapped by user interface (controlled by CPL)
5  9739, Analog signal (LineIn, Mic ...) can be translated to S/PDIF OUT (controlled by CPL)
6. new way for S/PDIF control
7. fix SiS961B S/PDIF clock misfunction problem.
8. add switch for "Bass Enhancement" (controlled by CPL)
9. fix the bug 9739 cannot pass Wave DSound HCT test 
10. remove Validity selection for S/PDIF on Mixer.
11. S/PDIF Validity is controlled by audio format (PCM:0, Non-PCM:1)
12. separate registry key for each speaker configuration.
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