Jan - I saw this same behavior (if not so extreme) when I was troubleshooting VEPro and PT. Were these channels virtual instruments? Reverbs? Any correlation to what you disabled? And what if you started using those VI's, plugins again? Did CPU usage increase? Maybe something in Kontakt is loading, and when you turn it off and then on again it isn't loading until its used? Or maybe its something to do with ProTools and Dynamic Plugin Processing? Do you have that enabled? Maybe try disabling it and seeing what happens? Oh and in regards to your follow up post. The higher your sample rate the less time your CPU has to do the same amount of work, the less time your SSD has time to respond, the less time your RAM has to respond. And finally, I would try setting up your template at 48kHz, in fact I would guess this might solve half of your problem since at 96k you have half the time you would at 48k putting twice the strain on your CPU. But its low enough that I would look into it. Did you put in "aftermarket" CPU's or is this a stock config? Are you sure that is your base clock or is that the turbo clock speed? I would also be slightly concerned about RAM speed, but I haven't really looked into what speed causes bottlenecks. I couldn't find that as a shipping system built by Apple from the 5,1 lineup. I do have a question for you though, you said you have a dual CPU Cheesegrater with 2 3.33GHz CPU's. To add to this you are running all of your samples off of one drive, which yes I can hear you furiously typing, is SSD but remember that the SATA interface on what I assume is a 2012 MacPro 5,1 is 3 Gb/s add to that (depending on the quality of your SSD) delays in the response times of the SSDs and you just add more stress to your CPU which is trying to do this with the "DAW-that-wins-the-award-for-not-playing-nicely-with-others". Also since you can disconnect/turn off plugins and it works would also indicate that your CPU isn't able to handle the whole template you are trying to use. And since you are running VEPro and PT on the same computer I would guess that your computer can't handle the load at reasonable buffer sizes. First to respond to the OP Julian, since its working some of the time I would guess that this is CPU bound. In building my own template in ProTools I have found out many things and I ran into problems like this as well. I can get around this by disconnecting the VE Pro plugins that I am not using but I was wondering if anyone might have some suggestions or thoughts as to why the CPU usage goes so high?
For instances where all of the libraries are the same type of instrument, they all route to the same stereo output (st. Each instance of Kontakt can route to up to 16 stereo outputs.
Multiprocessor support in Kontakt is turned off.All instruments are purged so that by default no samples are loaded.There are some instances where this is not the case. Most instances of Kontakt have one or more libraries of the same kind of instrument.Each channel has one instance of Kontakt.Per instance: 3 threads, 16 MIDI ports, 32 audio outputs, 2 audio inputs.Pro Tools and VE Pro are currently running on the same computer.One of the drives contains all of the libraries loaded into VE Pro. Two 3.33 GHz 6-core processors (24 virtual cores).
#USING VIENNA ENSEMBLE PRO6 WITH PRO TOOLS 12 MAC#
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