//********************** C-Media AC97 UDA driver Release Note ***********************//
51210031-5
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1.Support EAPD when disable S/PDIF-IN 

51210031-4
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1. do not touch 64H B12 if the MIC does not share Central/Bass
2. implement ECS GPIO Headphone (Gpio : 2, GpioHeadphone : 2)
3. mute the recording gain while WAVE active
4. mute S/W S/PDIF Monitoring while AC/3 S/PDIF input

51210031-3
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1.修改錄音時對於音量較小或空音時,自動縮小gain開關機制
2.修改Real one player 播放時timer不準問題
3.修改錄44.1K時,波型不完整問題

51210031-2
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1. resolve wrong initial volume for recording gain
2. add Aux/TV label name
3. show S/PDIF input format (PCM or Non-PCM) on CPL
4. save recording selection on Me
5. continuous boost gain for h/w recording threshold
6. fix the problem on digital channel that the hardware threshold gain enabled

5.12.1.0030
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0030-2
1.  fix bug on wave for recording
2.  improve High Frequency Emphasis filter
3.  fix collocate modem card bug in VIA south bridge

5.12.1.0029
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Library version 026
0029-1     
1.  improve high pass filter for recording
2.  hide front/rear exchange forever
3.  synchronization for Hyper-threading
4.  fix card retrival noise on VIA
 
0029-2
1.  Interrupt for Timer (based on VIA)
2.  Mic as Rear
 
0029-3
1. setup h/w register while volume < RecordTH
2. fix bug on center/bass sharing
3. default boost disable & gain to 3dB
4. enable S/PDIF valid while enable analog input monitoring 
5. rsolve AC/3 encoder hang problem
6. add i/o delay on VIA   

5.12.1.0028
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1.Configuration Interface Revision
  (1)Add in "Microphone" tab
  (2)Move XeaR 3D function to an independent tab
  (3)Must click radio button to activate the switch of speaker types
  (4)Add Loudness (3-12dB) and Auto-Gain-Control in volume control
  (5)Add information for new audio controller (south-bridge) 
  (6)Use Windows XP standard window in WinXP
2.Add "wave" slider for recording wave
4.Support ALI1563 south-bridge
5.15 languages support

5.12.1.0027
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1.S-Bracket Auto-Detection
2.Driver installation/update without setup program will contain Xear 3D Advanced program
3.Support ICH5 south-bridge

5.12.1.0026
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1. Microsoft Mixer Wave can control all channels
2. support SCMS (S/PDIF CopyRight bit)
3. improve DC offset
4. version (6.6) for property interface
5. support 5.1 & 4 channel on ALI5451, SiS7018
 
5.12.1.0025
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1. add S/PDIF Valid control in mixer for recording
2. add "Room Size" for Global Reverb
3. mute MIC while multi-channel mode and share mode
4. S/PDIF Loop support on new 9739 codec
5. fix some bugs on Jacks info
6. registry key "FrontRearXchg" for ear phone plus
 
5.12.1.0024
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1. support XeaR speaker shifter
2. 10-band equalizer support
3. dynamic phone jacks architecture
4. two options for XeaR mode, one is front/rear exchanging the other is defining XeaR 3D mode
 
5.12.1.0023
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1. fix SiS 961B/962B power management problem on S/PDIF
2. fix a bug on read/write registry
 
5.12.1.0022
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1. fix the problem that multi-channel audio demo crash
 
5.12.1.0021
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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.