New clicks/pops signal chain problem tonight
TROUBLESHOOTING HELP NEEDED...
I'm having a problem that I am having difficulty resolving. It is a new problem on a system that has worked flawlessly for months. A tiny, but consistent popping/crackling sound is present in the signal chain when attempting to record (it's not just in the headphone monitors, it actually records the clicks/pops). Had to cancel a session tonight and cancel two more this week when I could not resolve the problem.
I've heard sounds like this before when I ganged up multiple instances of reverb plug-ins on different tracks before I learned to use a bus, but I tested the system with a new REAPER project with just one track and no plug ins at all, and the problem was present.
I have moved everything in the system systematically out of the signal chain except the snake, and REAPER. The 8pres were individually tested, but both appeared to have the problem. There was a brief moment when one unit worked without the pops, making me think it was an 8pre or the ADAT connection problem, but we could not recreate that situation where we could get a clean channel after that.
The popping/crackling sounds make me think there might be a clock configuration problem with the MOTU 8pres. Or possibly this is something that can be fixed by reconfiguring REAPER? I did make one change to REAPER to use the ignore time block when copying and pasting tracks just before the problem surfaced, but that is the only system change.
Any suggestions on how I might logically troubleshoot this kit?
System configuration:
Windows 7 Home Premium
REAPER 4.14 x64 487639
StudioCat Project Studio DAW:
Intel i5 2400 @ 3.4GHz
· H67 motherboard
· SATA-III, TI Firewire, USB-3
· 4GB DDR3
· 250 & 500 GB HDs
· Intel HD 2000 video
Firewire Interface to:
MOTU 8pre #1 (tested in and out of signal chain)
ADAT optical to from MOTU #1 to:
MOTU 8pre #2 (tested in and out of signal chain)
API Lunchbox with 2 Daking 500 mic pres on ch 1 & 2 (tested in and out of signal chain)
Radial direct J48 on ch 3 (tested in and out of signal chain)
8pre converters to XLR to 16 ch snake
Swapped all cables between sound source and snake to no avail.
Not expecting miracles, but you guys may have seen something like this before. If so, please chime in!
Thanks!
Randy
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—Registered REAPER user
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