sean72

Hi all, this is my third most recent post along these lines. Every time I think I have things sorted a new problem comes up. Tonight I was setting up a simple blank project with some empty tracks and buses, to save it as a blank record template project for future use. I had inserted one instance of Superior Drummer 3 and several instances of Neural amp sims. Everything was going fine until I hit the play button and the audio engine shut down. No audio was being passed through the amp sims, only audio was the MIDI track feeding Superior Drummer 3. Only thing I recall unusual is I was naming tracks I must have started typing in the wrong filed on a MIDI track because some dialog box came up which I was apparently typing into as I looked away. It seems after that when I tried to play the MID back the audio engine completely crashed. I saved and closed Cakewalk, rebooted the audio interface and reloaded the project. Same problem, engine stalled. So I set the buffers to 1024, 2048, 4096, same problem audio engine dead. So I rebooted everything again and this time deleted every single amp sim and the Superior Drummer instance. Same thing,, total shutdown of the audio engine regardless of buffer size (and with no audio going through it and only a few blank tracks, why would it shut off anyway?) So I reloaded the same project saved from an earlier state and it played the MIDI fine, even though it had about 8 amp sims loaded up, no problem CPU was never seemingly under stress, yet the one saved version of the project where the audio engine dropouts were happening every time remained broken. It would never play back again, while the same project saved at an earlier revision played back fine with buffers set to 128 (as low as I tried to go) and never dropped out or popped or stalled. The machine is top spec all around (from about two years ago) with an AMD 5950x and the fastest best hardware available at the time all across the board, so I do not believe this is a hardware deficiency. OS is Windows 10 x64. Interface is Presonus Quantum 2626 Thunderbolt 3. I'm very perplexed I guess you could say as to why I am having so much misery migrating from Sonar 8.5 to the latest version of Cakewalk on much more powerful hardware. Just running into a lot of strange things so far.

Thank you, I will read through the info provided.

Sorry to necro this thread but I am chasing down some latency problems that shouldn't be there and I noticed this line from Noel: "This is on by default in CbB and when enabled all engine threads are marked as prioritized for Pro Audio. We also support custom MMCSS Task profiles." I am running Version 2022.11 (Build 021,64 bit) and just noticed MMCSS was NOT enabled by default. Nor was "64 bit Double Precision Engine" nor was "Plug-In Load Balancing". So now I am wondering what else should be turned on or off to maximize the performance of my system. Here are the Specs and what's been done so far: AMD 5950x CPU NVIDIA RTX 3090 GPU 64GB Corsair Dominator RAM 3x Sabrent Rocket 4.0 NVME PCIE 1TB slotted into the motherboard Motherboard is Gigabyte Aorus X570 Xtreme revision 1.1 with thunderbolt header, with Titan Ridge 2.0 PCIE card running Thunderbolt 3 Audio interface is Presonus Quantum 2626 Thunderbolt 3 I have turned off Auto C States in BIOS, also turned off AMD Cool N Quiet in BIOS. In Windows 10 x64 I have disabled HPET and set power plan to maximum performance. In NVIDIA control panel I have set to prefer maximum performance and set PhysX config to use GPU only not CPU. In CbB I have now enabled "64 bit Double Precision Engine" "Use Multiprocessing Engine" "Plug In Load Balancing" "Use MMCSS". What else can I do to improve performance? Thanks in advance!

Lots of general effects, EQ mostly and several instances of compression, some pitch shifting, reverbs, plenty of them. The problem is I wasn't getting this kind of startup lag on my older machine with the much slower Firewire vs Thunderbolt 3. If I don't get latency issues on the old platform I shouldn't be getting them on the new one. I will try deleting all effects and mixing up from scratch to see if that helps. Other than that I don't know what else to try. Not sure if you have any idea bout this next question but how is Cakewalk efficiency-wise compared to older versions of Sonar? The only other thing I can think of is a difference in the audio engine being the culprit... but it doesn't show that I'm even stressing the audio engine. Typically when I had dropouts on my older systems the audio engine would be stressed to the max, or the disk bandwidth would be saturated to the max but neither is the case here. I've never had problems like this in any older versions of Sonar. Before Sonar 8.5 I was using Sonar 5 on an old AMD dual opteron and that one never crashed or dropped out under heavy loads either. I hope I can get this sorted out, thanks very much for your suggestions.

I recently moved my production to more powerful hardware (in theory at least) and am not getting the expected behavior, I'm not sure what the problem is. I had created a project in Sonar 8.5 Producer 32 bit. I also used Bandlab Cakewalk x64 to record vocals on a laptop and imported the vocal tracks back into Sonar 8.5 for mixing. In Sonar 8.5 all plugins used were 32 bit. I installed it years ago on an Intel i7 4790K in Windows 7. This is back when 64 bit plugins weren't as prevalent as they are today and I didn't want to mess with Bit Bridge. Anyway, I recently installed Cakewalk on a new desktop machine running Windows 10 x64 with an AMD 5950x, twice the RAM (64 GB and faster speed) of the old Intel machine, and with NVME PCIE x4 drives that run circles around the old Samsung SSD drives used on the old Intel machine. My audio interface was also upgraded (again, in theory) from a Focusrite Firewire 400 model to a Presonus Quantum 2626 Thunderbolt 3. Thunderbolt is correctly implemented on the AMD system using Titan Ridge 2.0 with the header hooked up to motherboard (Aorus X570 Xtreme revision 1.1) with both power cables also plugged it, etc. Thunderbolt is working fine, I copied a 90GB sample library from the primary NVME internal drive to a Thunderbolt 3 NVME external in less than a minute, and those were thousands of small files which tend to make transfer speeds slower. I spent a few days dialing in the latency for the system, running Latency Mon to test and everything stayed well into the light green. At first everything seemed fine in Cakewalk, Superior Drummer 3 samples loaded in a fraction of the time as expected and I was getting low latency without any pops or delays. So back to the point of my question.. I imported my project from Sonar 8.5 into Cakewalk. It even loaded in the plugins correctly. I have upgraded to all 64 bit versions of the plug ins that were used in the original project on the Intel 32 bit system. The problem is when I go to play back the track there is a delay of about 1 - 2 seconds before the audio starts, and there is also some popping going on. I looked at the CPU monitor in Cakewalk, all 32 cores showing up and usage is pretty low overall, maybe around 30% (although I still don't know how to read those numbers for sure). So I went in and pushed the buffer size from 128 samples up to 512 samples. That eliminated the delayed start but did not eliminate the popping sound every time I hit play. CPU usage was even lower this time likely due to the larger buffer size. Are there any known issues with importing old 32 bit projects with 32 bit plugins into newer 64bit versions? It just doesn't make sense to me, as by every measurable metric this new system is multiple times more powerful than the old one and is noticeably faster in every other way. I don't see why this project would cause a problem, unless the plugins were having trouble or unless the Cakewalk x64 itself just isn't as efficient as Sonar 8.5 32 bit ? The project is of a large size, about 6GB in the audio folder and track count is over 200, but I had it up over 350 on the Intel machine when I was editing vocals down from multiple takes and it still ran fine. I don't know why I am getting worse performance on this project from the new machine? If anyone can help I'd sure appreciate it, Thank You! -Sean