Hello

during the weekend I made the switch iLok , redownloaded all my librarys, deleted all prior versions of the Synchron Player (Piano and the normal one) and installed everything again. So far, everything is running fine except one rather important thing: the CPU-usage is skyrocketing through the roof even when playing only one single voice (for example when playing the new "Hello" instrument, that nice flute). I changed nothing regarding the hardware, my system has the following specs:

AMD Ryzen 7 3700X 8-Core Processor 3.60 GHz
32.0 GB RAM @ 3200 MHz
Gigabyte x570 Board
Focusrite Scarlett 2i4 2gen interface (48k @ 256 Latency, since 128 is simply unplayable at the moment)
Windows 11 - 64bit
All drivers are up-to-date. 

Any ideas what could cause this behavior? As much as I would like the transition to iLok, this situation is not so great ... 

Thanks in advance and greetings from Switzerland

Michael

Edit for clarification: Playing one single note (!) of e.g. the flute at a buffer size of 128 uses about 90% of the CPU (!). 

Same issue on a Mac. MBP M1 Max 64 GB Monterey, Logic Pro latest version

Thé same pièces which had no issues at all before now regularly give system overload when you first playback and instruments play their first notes, a workaround is to go back ton the start of the piece and playback again till the next overload. After all instruments have played their first notes, you can play the pieces from start to finish without issues and navigate back and forth. 

I tested in both Cubase and Dorico. Cubase, with its usual illogic, none intuitive way of working  ignores the articulation keyswitch midi notes when you have the official VSL expression maps linked to the tracks. So you have to remove them from the track to make them work. As in Logic there is an audio performance peak when a VSL instrument kicks in which causes some clicks. After one playback this does not occur anymore.

Dorico works perfectly with the keyswitches but also has some clicks when a VSL Synchron instrument kicks in. You always have to run a piece till all instruments have played a few notes to eliminate the clicks.

I played also with the Synchron player settings Force enable all slots or Force disable all slots. There is no effect on the peaks. Force enable does improve that first notes when an instrument kicks in sound which also is an issue I only have with Synchron libraries.

By the way I have 4096 samples preload and 4 steaming and loading threads in the settings. Maybe that should be changed to solve this issue. The 100% peak shows only on one high performance cores/threads in Logic.

Hi, 

We are currently investigating if that could be connected to processing a lot of MIDI CC data.

Did you send in some of your projects to yet? The smaller, the better, so we can reproduce this and then take it from there. 

Best, 
Paul

Same here with a new MB Pro 14 M1 Pro.

It also crashes Studio One and makes the computer restart. Both running natively (AU) or under Rosetta (VST3)

Hi,

I have the same problem. Has it been fixed?

Thanks

Hi guys, same problem here!
The loaded instances take 45-50% of cpu only on idle.
Any news about this?

Thanks

I am having the same issue.  I am using the Synchron Harp, Strings Pro and Oboe d'Amour on a pretty large project.  ALL of my other AUs are playing fine and without any issues except for the Synchron Strings Pro.  It is bogging down the system badly and it's so frustrating.  Since switching over to iLok this has been the one constant CPU issue with VSL and it's really frustrating.  Any news or updates would be great.  I have tried all the things people here have mentioned and still no resolution.

Thanks,

Seth

MacPro - Latest version

128gbRAM, separate 2TB SSD drive solely dedicated for only VSL products.  Logic Pro - latest version.

I'm having the same issue. I just installed Synchronized Dimension Strings on iLok and can only play 3 or 4 notes before getting 100% CPU and dropouts.

Hello. Which SSD type is recommended for Dimension Strings I, Sy'd Historic Winds and your free stuff? Is SATA III SSD good enough or can it slow down performance if for example all sections of DS are used? My CPU supports NVMe with PCIe Gen3 X4.

BTW, I have CPU spikes too (AMD 5700G) when using DS. The libraries are on HDD now because I just wanted to try them. After reading previous comments though, I'm worried that the problem will remain even after putting them on an SSD.