Audio glitch on tempo changes

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Chris T
Posts: 209
Joined: Sun Jan 16, 2005 10:01 pm
Primary DAW OS: Unspecified

Audio glitch on tempo changes

Post by Chris T »

Does anybody else have this problem?

When I both record to and playback from a stereo audio track (having printed MIDI from my host and slave computers via VEP Pro instances), I get an audio glitch right when there is even the slightest tempo change (I'm scoring to picture, so sometimes the changes are minuscule but necessary). This happens when I have a lot (over 30) of audio tracks recorded but also when there's just a few.

I check the soundbite and the glitch is not printed, it's just on realtime playback. However it's very distracting while mixing, and I'm not sure what's causing it.... This has been a problem for a while in DP I think.
Main SYS: 12-Core New Mac Pro (Dec 2013), 64GB RAM, OS10.10, Apollo Quad Interface, 3xSSD work/sound drives in TB Enclosure, UAD Plugs, DP, VE PRO, All NI, All Spectrasonics, many libraries, VIs etc.
2nd SYS: Intel 8-Core Mac Pro (2007), 28GB RAM, OS10.7, MOTU PCI 424, 2408 interfaces (4), DP8.07, VE PRO, All NI, All Spectrasonics, many libraries, VIs etc.
2 Mac Minis (2011): Dual Quad, 16GB RAM running VE Pro, various libraries in Kontakt, G-Player, UVI.
Chris T
Posts: 209
Joined: Sun Jan 16, 2005 10:01 pm
Primary DAW OS: Unspecified

Re: Audio glitch on tempo changes

Post by Chris T »

I think I just solved it, but thought I'd let people know!

I run many VI Plugin instances (pointing to VEP instances on slave and host VEP servers). When I disable all plugins (i.e. deselecting the track Enable button), the glitching stops!

I guess it might have to do with my Preference "All Plugins / VIs in Real Time" which is I remember was a necessary for my configuration.

Any idea if there's a way to stop this happening? Enabling / Disabling all plugins can become a bother, slowing down workflow.
Main SYS: 12-Core New Mac Pro (Dec 2013), 64GB RAM, OS10.10, Apollo Quad Interface, 3xSSD work/sound drives in TB Enclosure, UAD Plugs, DP, VE PRO, All NI, All Spectrasonics, many libraries, VIs etc.
2nd SYS: Intel 8-Core Mac Pro (2007), 28GB RAM, OS10.7, MOTU PCI 424, 2408 interfaces (4), DP8.07, VE PRO, All NI, All Spectrasonics, many libraries, VIs etc.
2 Mac Minis (2011): Dual Quad, 16GB RAM running VE Pro, various libraries in Kontakt, G-Player, UVI.
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