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Appendix
OptimizingComputersfor1394(FireWire)
Whenusinganycomputer forliveaudio applicationsit isalways suggestedto performcertainoptimizations to
ensure consistent performance. For the most part live audio is not always the highest consideration for both
hardware designers and software programmers. With that being said, Stantonhas put together this guide and
includedoneofthemostwidelyusedtroubleshootingto
ols(DPCLatencyChecker)withtheSCS1tohelpoptimize
your compute
r by performing certain tweaks, which we have found increases performance and stability
substantially.
IfyouarehavingissuesgettingyourcomputertorecognizetheSCS.1controllersthenitissuggestedtostartwith
theSi
dSpeedfix.Ifyouarehavingissues
withaudioperformance(dropouts)thenitisfirstsuggestedtoperform
thefollowingsteps:
• Disablewirelessinternetdevices
• IfrunningWindowsonaMac(BootCamp),killtheprocess“KbdMgr.exe”
• DisableACPI
• PerformDPCchecks(below
)
• PerformtheSidSpeedfix(bel
ow)
• Checkthebrandof1394hostcontrolleryouareusing.
Pleasereadthenextpageaboutthe(DPC)LatencyChecker.
DPC(WindowsXP‐Vista)
During the SCS.1 driver installation process, we are also installing the Deferred Procedure Calls (DPC) Latency
Checker.ThisusefulWindow
sapplicationnotonlyanal
yz
eshowyo
urcomputerishandlingreal‐timedatastreams
butalsohelpsyoutofindthepotentialcausefordrop‐outs(interruptionsinreal‐timeaudioandvideostream).In
fact,theDPCLatencyCheckerwillallowyoutofindoutthedrivertha
tcausestheexcessiveDPC
latenciessothen
youareabletodisableitthroughtheWindowsDeviceManager.Inotherwords,usingthisapplicationwillhelpyou
tooptimizeyoursystemsoeverythingrunssmoothlywhileusingtheSCS.1controllers.
Let’stakealookofitsmainwindow.(Fig
ureA.1)