Jitter ...

Matt Grabe · 9th April 2007, 06:50 PM

I am sending out a hard drive full of ProTools sessions and consolidated audio to have mixed. We tracked most of the files in one studio in LA, but have since retracked piano and rhodes elsewhere.

When I play the retracked piano and rhodes files in the sessions, I am hearing little pops and clicks, jitter noises. When I do an "import to audio track" or just listen to the files directly off of the computers hard drives, those pops and clicks are not there.

I'm assuming this is a simple clocking problem. The person mixing the tracks does have a proper clocking system. I am assuming those jittery noises will not be there when he listens, am I correct? Or should I be working on something?

tINY · 9th April 2007, 08:21 PM

The clicks an pops aren't jitter - they are audio engine errors or sample drop-outs.

If the audio is there, then someone who knows what they are doing can convert them to the same sample rate if needed and play it back on a system that isn't having problems keeping up.....

-tINY

Stitch333 · 9th April 2007, 08:42 PM

tINYs got it right about the instance of 'jitter'. The other thing would be to clean the playbackdrive. Also, make sure the session is fully copied onto said playbackdrive and adjust the H/W buffer accordingly.

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9th April 2007, 06:50 PM	#1
Matt Grabe Gear nut Join Date: Sep 2006 Posts: 104	Jitter ... I am sending out a hard drive full of ProTools sessions and consolidated audio to have mixed. We tracked most of the files in one studio in LA, but have since retracked piano and rhodes elsewhere. When I play the retracked piano and rhodes files in the sessions, I am hearing little pops and clicks, jitter noises. When I do an "import to audio track" or just listen to the files directly off of the computers hard drives, those pops and clicks are not there. I'm assuming this is a simple clocking problem. The person mixing the tracks does have a proper clocking system. I am assuming those jittery noises will not be there when he listens, am I correct? Or should I be working on something?

9th April 2007, 08:42 PM	#3
Stitch333 Lives for gear Join Date: Aug 2006 Location: Phila, PA/Upstate MA Posts: 2,095	tINYs got it right about the instance of 'jitter'. The other thing would be to clean the playbackdrive. Also, make sure the session is fully copied onto said playbackdrive and adjust the H/W buffer accordingly. __________________ www.myspace.com/stitchproductions www.myspace.com/longviewfarmstudios "Half shark, half man, skin like alligator...carrying a dead walrus..."

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9th April 2007, 08:21 PM	#2
tINY Lives for gear Join Date: Jul 2004 Location: Orygun Posts: 5,716	The clicks an pops aren't jitter - they are audio engine errors or sample drop-outs. If the audio is there, then someone who knows what they are doing can convert them to the same sample rate if needed and play it back on a system that isn't having problems keeping up..... -tINY