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In Reply to: RE: Some more refinements posted by jackwong96 on May 23, 2010 at 04:20:56
Thanks for confirming PCI Latency and Vterm.
No need to use ASIO4ALL as cPlay reports buffer in samples (see diagnostics). For example:
ASIO Driver Initializing...
Name (ASIO4ALL v2)
Player ASIO version (2)
Driver ASIO version (2)
Message (No ASIO Driver Error)
Channels (inputs: 2, outputs: 8)
Buffer details (min: 64, max: 2048, preferred: 64, granularity: 8)
Sample rate ( 96000.0)
Output Ready? Not supported
Preparing buffers... successful
Latencies (input: 64, output: 64)
ASIO Driver initialized.
Item is reported under "Buffer details" as "preferred: ?". This is the ASIO buffer size cPlay uses. Only issue for Musiland driver is how low ASIO buffer can be set (try its ASIO Control Panel via cPlay if this can be set lower). Maximum PCI Latency is 255.
Will test DRAM Timings.
Follow Ups:
Thanks. I tried the Musiland driver and Cplay reported min.: 256. With 256 samples and 255 PCI lantency, ASIO4all was preferred. I gave up and am using ASIO4all for now.
Hopefully Musiland can offer lower latencies in future. Be sure to setup ASIO4ALL to use hardware buffers and not have any latencies of its own.
Tried DRAM Timings on Kingston HyperX DDR3-1375 1GB and unfortunmately, RAM did not work. Will be testing Kingston ValueRam DDR3-1333 1GB soon which is cheaper and doesn't "validate" timings.
Try PCI Latency Tool 2.3 (you'll need to reverse Minlogon, and only then can 3.1 be uninstalled after restarting DCOM and Windows Installer services). With 2.3 there's no installation, simply extract software (by running LtcyCfg.exe) to folder and run it. It has less bloat and doesn't suffer from loosing PCI devices (unfortunately its a bit more difficult to identify PCI device as your soundcard will show something like "Multimedia device"). Also, we can safely disable unwanted stuff in BIOS. There's more improvement doing it this way.
Note for settings to take effect in cMP mode, you need to setup a .bat file and run it each time on reboot. I use the "RIP" to apply latencies on startup:
@echo off
"c:\...\LtcyCfg.exe" /a
exit
See example for doing something similar with Cryptographic Services.
Thanks! Will try. Can the same .bat file be used to start up LtcyCfg.exe and stop Crypt Srv at the same time?
Yes. It would look like this:
@echo off
"c:\...\LtcyCfg.exe" /a
sc stop cryptsvc
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