Clicking Noise in ProTools 8

I'm experiencing "clicks" that appear randomly during various ProTools 8 session playbacks (mac OS 8.5.1). Everything is locked to an Ardvark master clock including my Digi 96, my 888/24, and mn D8B board.

However, the clicks are NOT in the waveform. I can isolate the click to a particular spot on a specific track, then copy the suspicious section to another track somewhere else but the click does not follow. The click will also appear in places that on a previous playback were fine. I've tried trashing the preferences and restarting verything but no change. So I am beginning to question the interface itself. It has all worked fine up until now and nothing in my setup has changed.

Please let me know what you think.

Thanks,

Dennis

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Permalink Reply by Robert Venable on May 7, 2011 at 3:37pm

Have you tried importing session data from that session into a new session to see if the problem follows?

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Permalink Reply by Dennis Scott on May 7, 2011 at 4:55pm

Good idea. I'll give it a try the next time it happens.

Dennis

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Permalink Reply by Pete Warren on October 5, 2011 at 2:43pm

Did you resolve this problem? It sounds like a classic mismatch of your sample rate between your session setup and your interface. Also, sometimes a single, unauthorized plug-in can be the source of a mystery click. Many of the manufacturers will put in a "watermark" of some type of noise or another to their plug-in to mess up your mix, until you have properly authorized a plug in. You may have paid for it and authorized it even with a prior version of the software, but upgraded it, and just not re-registered it correctly somehow. It's just a hunch. I've had that happen before, and had intermittent noise that took me a while to isolate. If checking the sample rate settings on the session and hardware to match doesn't fix the issue, then work through each track and isolate the plug-in's to check for the source of the pops and clicks. If they're random in nature, you'll find them somewhere. It's one of those two sources, I'd be willing to bet.

The suggested solution by Robert might eliminate (or might have eliminated) the problem by default because you may have created the new session with a setup at a matching sample rate, and then converted the old sound files correctly. So that's a workaround for sure.

Let me know if this isn't solved, though it's clearly a few months late. I just wanted to reply in case others see this post and are having a similar issue. Especially if the clicks aren't recorded and are occurring randomly. But I'd think 90% of the time with the situation described, it's a clock mismatch issue, based in the sample rate being wrong.