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to just be a dodgy usb cable. There may also be interference from your wireless adapter, so maybe try disabling that.
I'm running a test now: 1 hard-drive, disconnected my cases front USB ports and the two case fans, and only have my mouse+keyboard+interface plugged in. Gonna sit here for an hour and see whether it happens again. If it doesn't, I'll proceed like that for a bit.
12:00, 12:20, 13:02, 13:09, 13:36, 14:14
So far from 8:45 till 22:00 I've been playing back the same project as I used on Friday, Saturday, and Sunday. I have not had a single audio dropout. No CPU spikes either.
Does that mean I've narrowed it down? Difficult to tell. Could a dodgy case fan cause this? Could dodgy front USB ports? Multiple SATA connections? One particular SATA cable I've been using?
Based on past experience I certainly would've expected to have had at least one glitchy audio dropout in this period of time.
I guess the next step is to do these hour long tests a few more times, over the next week. Then after that start to restore things one by one until it occurs again.
PS: The project in question was playing back at 16 samples buffer size. So lower than the 64 I was originally using. That is a 2.30ms roundtrip latency!! That is really impressive!!
1. At least a couple more control tests to check no glitches.
2. Add back a single element at a time until it starts again. Remove the last element and check the glitches come back.
3. Remove/exchange faulty device
My money is still on a USB device - they are actually pretty ropey in reality. It's why apple did FireWire.
I wonder if the cable is shot with plugging in and out.. those connectors are notoriously cheap and nasty...
One thing I forgot to mention is I disconnected a monitor. But I never used to have 2 monitors until a few months ago, so that's not part of this I don't think.
I'm wondering if the front usb ports or the case fans were/are causing some kind of voltage spiking which is making the entire system 'hiccup'
A slightly shot cable could be sending out some wacky signal back to the mainboard and causing your CPU spikes. Same with a dodgy monitor, or a shot SATA cable for that matter.. but my bet is still on good old 'ropey as fuck' USB...
- Do a few more sessions like this one (By 22:30 it'll be an hour and 45 minutes without any audio drop outs)
- Plug all my hard-drives back in and do a similar test
- Plug my fans back in and do a similar test
- Plug the front USB ports and do a test
Coz that's the order of priorities that I give a shit about. Happy to lose the front usb ports, or switch over to a usb hub which is plugged into the rear ports if it comes to it.
I'm so glad I'm using a MBP and Logic Pro X. I ditched PC a long time ago due to interface issues.
- 1 SSD drive
- 650ti graphics card
- Mouse + keyboard
- Audio interface