Cubase cpu problem

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pseudojazzer
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Post by pseudojazzer »

Hi Z, I hope its alright to post this here, dunno if its scope or cubase that is the culprit, but this is an odd problem. I'm running a large project in both scope and cubase and all seems fine until i get halfway through the track. As soon as i try to playback the second half of the track i get severe cpu spikes (athlon, 3500 venice) so i cannot listen to the second half of the track. What makes it really strange is that there are half the amount of instruments in the second half...?
i have tried disabling eqs, freezing tracks, saving as new project in its own folder, soloing/muting tracks, all sorts, to no avail. one other thing that i noticed is that the disk cache bar lights up when i move the cursor in the area of the second half of the tune - so for example when the track is stopped and i select a bar to play from in the second half it spikes just as i select it, then goes down.
Seriously frustrated, hope someone has some ideas. I have 1gb ram, maybe its that? just dunno.
Thanks in advance,
Tom
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ChrisWerner
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Post by ChrisWerner »

Check your virtuell memory of Windowz.
It sounds that your audio tracks and or samples that are used along with the read and write of the virtuel memory use up the performance of your hardrive.

Enlarge your virtuel memory or better move it to an other Hard Drive, if you have one.
The Windowz virtuel memory and your audio/sample stuff shouldn´t use the same drive.

Hope this helps you out.
pseudojazzer
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Post by pseudojazzer »

Thanks Chris, i have tried that i'm afraid, i have increased the virtual memory on the main hard drive (not the one with cubase projects on it), i shall try that as well. i keep all my sfp and cubase projects on a different drive to the programs, and have defraged both recently, do you think increasing the virtual memory on the project drive will affect it or just the program drive?
Cheers
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ChrisWerner
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Post by ChrisWerner »

hm, I use only one drive for the virtual memory file of windowz and windowz itself.
I don´t have another virtual memory file someplace.

All my samples, instruments, sfp etc. are on another drive. As you have, if I understand right.

Maybe you should try to enlarge the project v. memory file also. But I don´t know really if this helps. You can undo this, so give it a try.

I know your problem well, because I had it sometimes ago, I just moved the windowz v. memory file to another drive and enlarged it a bit. Then the problem was solved.

EDIT: I discovered when I let Cubase play through the whole project once, without trouble myself about the spikes and clicks.
The second play was smooth.

Maybe we get some more ideas, anybody?

<font size=-1>[ This Message was edited by: ChrisWerner on 2006-01-05 04:50 ]</font>
fra77x
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Post by fra77x »

Maybe a fragmented audio file. (or better at a different sample rate).
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valis
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Post by valis »

Are you sure its not a plugin?
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ARCADIOS
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Post by ARCADIOS »

i think that it is cpu overload and less a memory issue.
open task manager while playing the song. what does it show?
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alfonso
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Post by alfonso »

I had this phenomenon but only after few bars once that I had forgotten to optimize windows for background tasks.
pseudojazzer
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Post by pseudojazzer »

Ok, i fixed it, i definitly need to upgrade to 3.1 but it was sovled by just increasing the latency in scope.. dunno why but i had it on 4ms, changed it to 7ms and bingo - no cpu spikes,
@chris - i tried the old turn the volume down and let it play all the way though but to no avail, one of my friends has to do that.
Thanks for all the advice guys,
and now back to the music
Cheers
Tom
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