djeans

On a new project using an apple loop, it works as expected. I wonder why in my other project it does not? Does sample rate have an impact? The project is all 192Khz imported .wav files.

Same behavior with bit crusher.

I have searched, read, and watched everything I could find on selection based processing, but for some reason I can't figure it out. When I select a track and enable it, I can't preview the processing. I can hear the audio, but the plugins don't seem to do anything. I did a screen grab of what's going on if anyone can take a look and let me know what I'm doing wrong. There is about a 15 second gap from when I hit play until there is audio - sorry about that. FF to 0:45 after I hit play to get to the audio and the problem. *edit for spelling error

Sounds like my issue was a little different. My audio would always stop after a matter of seconds, or maybe a minute or two. I never got to 20 minutes or more. That being said, I don't actually know what we did to fix it, since I was way above my head. I use a hackintosh rather than an actual Mac. If you are also on a hackintosh, I may be able to find the thread on the hackintosh forum where the guy that helped me figured it out and send you that link.

Thanks for the help. I solved my issue (or rather a more knowledgeable person from one of the hackintosh forums did) by editing my DSDT and making some adjustments to my EFI folder.

OK, Just did a fresh clean install of Mojave, new completely wiped drive, and the problem is still there. So weird. Here is the capture of the Console around the time it happened, and there are a bunch of entries regarding IOAudioEngine and core audio. Can anyone make sense of this?

Thanks for the suggestion. The messages fly by pretty quickly, so it's hard to see what the message was right when it happened. Here is a grab of the console around the time that it happened. There is one entry regarding logic, followed by several with a process that was deleted, so no idea of that's involved. The entry for Logic is "Making presenter 649C5F28-9174-4276-8C73-D3E6DCB516D7 observe change" whatever that means.

All projects, all users. Were you able to solve it when you experienced it?

And another short vid of the audio stopping during recording. The glitch is at 1:02 if you want to skip my "noodling" on guitar. https://youtu.be/FMo5yMb8zls This was a brand new user account, on a bone stock install of Logic, no external plugins of any kind, no external control surface.

Sorry to bump an old thread, but i don't know where else to go for help. I recorded a short video today that illustrates one part of the problem (it also stops recording on its own, out of nowhere) This problem first started when I upgraded to Sierra. I have now upgraded to High Sierra, which I hoped might fix it, but no luck. This is a Hackintosh Computer (I specifically built it for the purpose of using it with logic, and it worked for years before up until Sierra where it broke) This problem also happens in Garage Band, but not in Reaper (I don't particularly like Reaper tho, so I don't use it) So it may be core audio related? In logic, the behavior is consistent (audio stops, drums only, then all audio again) for the most part, but there is no consistency in when it happens in a song. Occasionally I can get through the whole song without it happening, frequently it happens multiple times in a row during the same playback of a song. Any suggestions?

Yes, but I've not been able to find anything in there related to logic. There is a crash log, but since logic isn't "crashing" per-se it doesn't update the crash log.

That seems to be logical answer at this point. It's just weird that I'm not experiencing any issues with anything else, including other DAWs that i've tried. So bizarre. I went into audio midi setup and deleted all the old entries in there for things I don't have anymore, hoping that would do it, but it didn't. Does Logic have an error log hidden away somewhere?

So, brief update. I'm still having the same issues on this computer, but I recently bought a MacBook Pro, which has the same version of Sierra on it, installed Logic Pro and it works fine. So, I guess I can rule out a Sierra related incompatibility. I really wish I could get this working, as this is my dedicated studio computer, and the laptop is my everything else computer.

Yeah, on Yosemite, I had NO problems at all. Could be the Sierra. It's actually a hackintosh, something I perhaps should have made clear at the beginning. X79-UP4 motherboard. I7 3930k processor, 32GB ram. I'm about to pull the trigger on a new MacBook Pro, so when I get that, hopefully logic will run fine on it.

Completely clean install.