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發表於 2012-1-1 20:39:05
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本帖最後由 odysseyhk 於 2012-1-1 20:50 編輯
Hi, for those who are interested in our CAS setup using Windows, I have post it in our forum whenever I found something useful or interesting. I haven't organize the information very well.
http://www.odysseyaudiohk.com/cg ... l?board=digital_gen
Let me try summarize it here.
1/ Setup CMP and cPlay and optimize
This is the basic set-up and CMP replaced the Windows Shell which is a big improvement. CICS, the writter of CMP/cPlay has summarized systems optimization in his site.
http://www.cicsmemoryplayer.com/ ... Optimisations#Step1
2/ MinLogon
This is to make XP a single user system, an important step towards making CAS a single purpose playback environment. There is CHing in HK already shared his experience.
http://www.hkepc.com/forum/viewthread.php?tid=1341730
3/ Enable AWE
We want Windows XP to be a REAL Memory Player. i.e. load the whole song to memory first and play back from memory. I mean REAL MEMORY, NOT VIRTUAL MEMORY which may be paged up to paging space in hard disk by the OS. cPlay support AWE which access real memory which very low latency. AWE is typically use by database software for very high performance operation.
You need to enable it with your Windows OS. Window XP home edition does not support it officially. But there is tweak to enable it. It is another big improvement.
http://www.audioasylum.com/cgi/t.mpl?f=pcaudio&m=81963
4/ Windows XP boot option. Changing options in boot.ini
A example of option used
/FASTDETECT /noexecute=alwaysoff /CLKLVL /timeres=9766 /nodebug /pcilock /use8254 /nopae /noguiboot /INTAFFINITY
5/ Remove unused Codex and DLL
They are big further improvement. It can be a bit dangerous to do so. You need to know what you are doing and how to recover if you run into problem. I did not implement all of them.
http://www.odysseyaudiohk.com/cgi-bin/yabb/YaBB.pl?num=1312301595
6/ The resource hack of shell32.dll
The shell32.dll is used by cPlay. shell32.dll included resources such as icon and AVI files and wasting resources and causing inefficiency. I have removed some resources by hand. It will cause issue with the windows browser but you are no longer using it as you are using cPlay now. But you still need it for copying file.
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Note:
Most of the information can be found in cPlay discussion under www.audioasylum.com. You need to be patient and analyze it before trying.
http://www.audioasylum.com/cgi/v ... mp;m=31286&VT=T
You don't need to implement all to get good sound. In fact, we get very impressive sound when we have optimize the system to step 4 ~5.
Please understand the risk of these tweaks and take your own responsibility.
Good Luck.
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