It always immediately crashes with SL Pro 12, whatever combination of options I use
It works with SL Pro 11, right after a PC reboot, using CPU instead of GPU, checking the bypass preview box, and using any quality level (including extreme)
Any other combination of options with SL Pro 11 will crash after some time (I see the gauge progressing, and then at a given time it crashes).
At least I have one solution to separate stems, but it is slow, and the process is not convenient (I often have to reboot).
I also hope the quality will be better in SL Pro 12.
I still find all the unmix modules I have tried in SLP12 to be a starting point…a starting point that is light years beyond not having the unmix modules and being faced with nothing but manual separation.
All of the unmixing depends upon the type of material. Layered guitars, synths, multiple voice tracks, orchestral is one challenge and SLP not really able to unmix these types of things. Removing vocals/ human voice, SLP is pretty good. Different instrument sources and how those instruments were recorded is critical. If all your productions sound quite similar and SLP isn’t working for that production format, likely SLP won’t be very good at separating any of it.
As far as SL11 verses 12;
Drums separation is certainly improved; clearly modelled on a pretty simple drum kit, I found improvements in the material tested.
Bass is ok if said bass performances are very simple. If more “complicated” bass parts are in the music, nah, you’ll have bass elements in all the other layers.
To add another data point: We just installed a Christmas present, a 3050 6GB into a Core Ultra 9 285K 64GB System, and using the GPU it takes forever. The Intel crunches through in about half the projected time… On max settings it takes around 36GB of RAM used!
EDIT: Of course I understand the obvious CPU to GPU mismatch at play here, but we put in that card mostly for desktop acceleration such as high color depth, proper HDR and high refresh rate for less eyestrain. Plus, this particular card is passively cooled and thus silent!
In my last Windows 10 PC with 16GB of system RAM, I had also fitted a Palit RTX 3050 6GB and it worked fine with SL (I think version 10), yes, slow, but better than the CPU I had at the time, and it never crashed. On the other hand, having avoided NVIDIA like the plague up to that point (because of the drivers), I spent many hours trying to solve the resultant audio glitches in Cubase.
SL 12.0.40 appears to be extremely RAM-hungry, and, based on reports here, somewhere between 32GB and 64GB seems to be needed for stability. I currently use 64GB system RAM with an RTX 5060 Ti 16GB, it’s stable and fast, but I still see it needing to use shared memory, if I have that enabled.
I guess that’s just the price of running better-quality AI models.
But on the Spectralayers 12 page, system requirements, Steinberg writes that 16GB are sufficient. Before Christmas I umixed the guitar from 15 very famous old song to learn the parts, in Spectralayers 11 and it worked fine. Then I upgraded to SL 12, now 0.40, and all versions crash when unmixing song, both the standalone and the ARA. I’ve lost one afternoon of trials and discovered that guitar and piano are my troubles: if I call unmix song and select vocals, bass, drums, sax and brass it works. So please try to unselect guitar and piano and see if it works for you - but Steinberg has to fix it, I wrote to the support
