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#1
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Strange crackling behaviour
I've been trying to find the source of some crackling on a vocal track. I had run Waves Tune on it, which for whatever reason caused a ton of crackling (I'll figure the reason for that out later). I had some automation on the track to bypass waves tune for a section.
Anyway, I removed waves tune when I discovered it was the problem. Still crackling. So I started disabled all the plugins on the track, maxed out buffer size, unchecked "ignore errors during playback", and sent it straight to my outbut (rather than bussing through the vocal bus), also disabled sends to delay and reverb. So essentially straight out to the speakers. Still crackling. I checked the original audio file playing back through finder, it's clean. So I duplicated the track with the current playlist but no inserts or sends. It's clean. I copied all the plugins over, disabled, still clean. Bussed it through the vocal bus, still clean. The ONLY difference between the two tracks is the empty automation lane for waves tune in the first track. So: 1. why is empty automation causing this crackling? It's almost as if PT caches the track and is playing back the cached audio file with the crackling. 2. how do I delete the waves tune automation lane entirely? I can just duplicate the track and use the clean one without the automation lane, but I'd like to figure this out. Thanks for any help! |
#2
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Re: Strange crackling behaviour
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If there's an automation lane for Waves Tune on the track, it means there's still an instantiation of Waves Tune on the track - if it were truly removed the automation lane would go away. Double check all insert positions (A-E and F-J).
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http://www.richbreen.com ---------------------------------------- Mac Studio / Ventura, PT 2023.12.HDX, Avid HD I/Os and Metric Halo ULN8, 3xS1/Dock Also running a Mac Studio Ultra / Ventura / HDX / MTRX / S6 |
#3
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Re: Strange crackling behaviour
It's probably not a cache issue, exactly. Individual tracks in PT can get "infected" with some sort of data corruption or can get buggy somehow. At that point, it usually works to move the audio to a new track and copy the plugins across, as you discovered. If that doesn't fix it, then the session itself has the problem. Importing the tracks into a new session can solve it.
If automating Waves Tune bypass continues to cause crackles, the workaround I'd use is to Commit the whole track with and without WT and comp the result as needed.
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David J. Finnamore PT 2023.12 Ultimate | Clarett+ 8Pre | macOS 13.6.3 on a MacBook Pro M1 Max PT 2023.12 | Saffire Pro 40 | Win10 latest, HP Z440 64GB |
#4
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Re: Strange crackling behaviour
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Thanks all! |
#5
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Re: Strange crackling behaviour
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Good luck!
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-------------------------------------- MBP 2015 3.1ghz i7 16gb Big Sur Pro Tools 2022.10 UAD Apollo 8p / Octo |
#6
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Re: Strange crackling behaviour
Assuming you have no digital connections that might be suffering a clock issue, try upping the buffer to 1024(unless you already are there). It sounds a bit like something chewing up all the cpu(might be worth showing that meter and see if it hits red when the crackles happen).
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HP Z4 workstation, Mbox Studio https://www.facebook.com/search/top/...0sound%20works The better I drink, the more I mix BTW, my name is Dave, but most people call me.........................Dave |
#7
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Re: Strange crackling behaviour
Aha, I just opened another song that had the same problem, and indeed the plugin was still active on the F-J inserts, which were hidden. Banging my head against the wall out of sheer stupidity!
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#8
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Re: Strange crackling behaviour
ah - easy mistake to make - I've done it myself...
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http://www.richbreen.com ---------------------------------------- Mac Studio / Ventura, PT 2023.12.HDX, Avid HD I/Os and Metric Halo ULN8, 3xS1/Dock Also running a Mac Studio Ultra / Ventura / HDX / MTRX / S6 |
#9
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Re: Strange crackling behaviour
This happens on my system occasionally.
My workaround is to change the buffer size (ex: from 128 to 256) click ok. Go back to settings and change the buffer size back to 128. Always clears it up. |
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