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Old 06-05-2019, 10:54 PM   #1
sitruc
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Default Audio Glitch every 10 minutes during playback mac OS High Sierra

This has been driving me crazy for a while now (5 months).

I can't track down why my audio will pause almost exactly every 10 minutes.

Whatever is playing, a simple track with no plugins or an entire mix. The playback "glitches" for just enough to throw everything off and then keeps going. It seems to do with the time that I turn on my machine - as in if I turned it on at 9:37 then the glitch will happen around the "7" everytime (e.g. 47, 57, 07 etc.).

macOS 13.13.6 High Sierra
iMac Mid 2011
2.8 Ghz i7
32 GB memory
Apollo Twin Duo lightning
Reaper 5.978/64

Any ideas? Thanks.
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Old 06-09-2019, 04:51 PM   #2
shanabit
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Check

File/Project Settings/ Advanced and look for Limit Project Length Stop Playback at. Make sure that box isnt checked. If it is, set your project length however long you need it to be, always more than what ya need of course
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Old 06-09-2019, 04:57 PM   #3
cyrano
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Have you had a look at Activity monitor?

I don't see an Apple maintenance script running exactly every ten minutes, but it could be cloud related, or Time machine, or...
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Old 06-09-2019, 07:53 PM   #4
sitruc
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Thanks for the help - So frustrating.

I just checked File/Project settings/Advanced and got excited when it said "10:00.00" but unfortunately the box wasn't checked so that doesn't seem to be it.

As far as activity monitor, I have watched it many times and can't seem to see anything that spikes when the drop outs happen.

Could it be that my Superior Drummer samples and Native Instruments libraries are on an external drive and it's "looking" or "checking" for those even though it's already loaded? I'm pretty sure the problem started before I moved to the external drive (firewire).

I'm going to create a project with one thing at a time I guess and see if I can narrow it down. I guess no known hiccup exists. It's difficult to replicate when it only happens every 10 minutes...
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Old 06-10-2019, 03:03 AM   #5
cyrano
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The simplest test I can think off, is running without the FW disk for a while, if possible.

Could be a disk that's set to go to sleep after ten minutes...

Alternatively, see what the disk power settings are in System prefs?

I've always run audio Macs set to "never sleep" and only abandoned that habit a few months ago. No problems yet, but I'm troubleshooting an Audacity crash that only happens when my FF400 goes to sleep and then still after an hour or so and when Audacity has lots of projects open.
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Old 06-10-2019, 07:56 AM   #6
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Make sure your HD's are NOT set to Go to Sleep when possible as well in the system as well as your monitor and Mac
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Old 06-10-2019, 09:07 AM   #7
EpicSounds
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could be reaper's autobackup - that's easy to check and you can set it to be only when stopped


or maybe it's time machine, or google drive, or dropbox, or backblaze ?
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Old 06-10-2019, 09:17 PM   #8
sitruc
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Thanks for the suggestions -

I just double checked Reaper's autosave and it's marked "when stopped"

I double checked and I don't have Google Drive or Dropbox on this computer (I use the web only versions for this machine).

I looked at Time Machine and it's not on "Back Up Automatically" so it should be only when I click "Back Up Now," right? I can't see anything else that it would run an auto back up.

I DID find that I had "Put Hard Disks to Sleep when possible" checked in System prefs. but I don't know why that would happen while it's being used. I unchecked it just in case and will test.

Going to try disconnecting the external HDD after that.

Thanks again. Will report back...
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Old 06-11-2019, 04:37 AM   #9
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Quote:
Originally Posted by sitruc View Post
I looked at Time Machine and it's not on "Back Up Automatically" so it should be only when I click "Back Up Now," right? I can't see anything else that it would run an auto back up.
TM creates a cached copy of files to backup, even when it's set to manual. You need to switch it off to get rid of those.

I'd be surprised if it was TM, because it's at an exactly ten minutes interval, but it's one of the things I keep switched off for an audio machine.
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