Audio clicks/gaps on Preview

Geoff_Wood wrote on 1/27/2011, 1:10 PM

Have already asked in other forums, but oddly not here yet !

V10(32) on an Athlon 2600+ 3GB machine. Was XP Home SP2, not XP Pro SP3 with all updates.

This machine has a dual head display adaptor, which may or may not be a factor. Other similar spec machines with single-head are fine.

During preview, if I resize or move a window, I get a zippy crackle. If I pop up a plugin window, I get an audio gap of maybe 300ms. If I drag something from one monitor to the other I get a smaller gap.

I assumed it was a driver issue re my Matrox G450, and tried all vintages of drivers that I could find. Finaly I tried changing to an ATI 7550 instead - same thing !

Have changed Track Buffer/resample/audio interface (MOTU) buffer - nothing fixes. With same settings, V9 performs flawlessly.

Any suggestions?

geoff

Comments

gwailo wrote on 2/9/2011, 9:34 AM

sounds to me like the heavier graphic / processor load of your specific examples is somehow affecting your hard drive's performance which in turn causes the crackling and droupouts

I haven't dug around in winXP for a long time...

but maybe DMA (direct memory access) is not turned on for your hard drive?

morroni wrote on 2/9/2011, 12:24 PM

I had a similar problem and solved it by lower my preview window to "Draft" to save on cpu resources and I also went into msconfig and turned off all none essential programs in the services and start up tabs.

Geoff_Wood wrote on 2/10/2011, 12:43 AM

No difference. Remember on the same machine with identical settings, I can run the same clip in V9 with no glitching at all.

A brand new XP-sp3 installation (with all updates), with Vegas 9 and 10 installed.

geoff

cchoy wrote on 2/10/2011, 9:12 AM

I have had the same issue...

Vegas 10 seems to get waaay more clicks and ticks (while vegas 7 seems stable). I also notice that real time pitch bend is all of a sudden causing a lot of problems too.

This happens on both XP and Windows 7 systems for me.

C