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VST audio bounce sync issues?

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depprussell View Drop Down
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Joined: 14 Jun 2018
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    Posted: 19 Jun 2018 at 3:08pm
Hello,

So my possible problem which I have tested on my desktop and laptop is that when I export to audio from a battery or groove agent one drum pattern and play that audio with the same exact vst midi part (the one I just bounced) match the volumes and listen I get an inconsistent phasing. I tried reversing the phase of one channel and on my laptop occasionally the somewhat expected silence occurs it's basically erratic on the desktop it's an on and off phasing sometimes it's there sometimes it's not. The reason I tested this was because my bounced audio did not maintain the expected rhythmic feel. It just was not the same or close enough to the original pattern played through battery. Realtime export was better but the same issue occurred. Now if I play the same bounced part as audio reverse the phase normal cancellation occurs, same if I play two battery instances with same sound and settings reverse the phase and the expected cancelation occurs. If it's a vst with same sound against bounced audio it plays back together with an inconsistent phasing. Battery and groove agent one were tested. My thoughts are that playing audio through sampler instruments alters the sound in some ways where it's not exact every single time it plays back the sound, or that there is some kind of sync issue between vsts and audio.  Please try it out on your system load up battery or groove agent one, lay out 16th notes with a short percussive High hat, export it to audio and play the vst and audio at the same time, while I don't expect a perfect match, the imperfection should be consistent right? It shouldn't sometimes sound one way and after looping for a while change phase relationship? Maybe vats and audio are not 100% sample accurate? Help me out with this if its a bug its a bad one, I'm hoping it's just the normal behavior though as its happening on my laptop and main desktop daw. Win 7 64 bit all updated cubsse 7.5.30 rme babyface fully tweaked system all updated drivers etc...

Please help

I didn't find the right solution from the internet.

References:
https://www.steinberg.net/forums/viewtopic.php?t=67379

Thank you

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