pro tools issue

[paulfl]

Please let me preface this by saying I regularly use (and love) Nuendo. About once a month I do a session in a studio that contains the following:

Avalon, great river and focusrite pre's feeding a Rosetta 800 D/A
Digi 002 interface
Apple G5 computer
Two Glyph fire wire external hard drives
Digi Pro tools 7LE
and a hear technologies headphone pain in tha ass generator


ANYWAY..........

When we track sometimes it seems the playback gets a tiny bit ahead or behind .... for example we recorded a click track and you can see the beats are not evenly spaced, how messed up is that? Any ideas on what could cause this?

My guess is that part of the problem (and i'll never understand why) is the industry standard pro tools.....

any ideas on how to fix this would be greatly appreciated..

[jmiller]

Originally Posted by paulfl

My guess is that part of the problem (and i'll never understand why) is the industry standard pro tools.....

My shot-in-the-dark guess would be a clocking issue. I'd rule out the software itself as a fault, since thousands of people record with it all the time and don't have this problem. If there is a software fault it's likely in the setup. Check anything related to your clocking.

[Birdi]

don't be a hater, nuendo lover. protools is alright.

I'd be checking the clocking as well.

Setup menu, Hardware , then clock source. 3 options - internal, s/pdif and optical. Either protools is set to internal and the apogee clocks to it, or, the apogee set to internal and the ptools clock is set to optical. or somthing like that.

and you are remembering to select low latency monitoring while tracking? left unchecked while tracking will create timing issues on playback....this doesnt sound like your problem tho. (unless its a faults in series/double fault kinda situation. )

B

[Jax]

Originally Posted by Birdi

and you are remembering to select low latency monitoring while tracking? left unchecked while tracking will create timing issues on playback....this doesnt sound like your problem tho. (unless its a faults in series/double fault kinda situation. )

B

Using even a high latency setting (aka H/W buffer, or DAE Playback buffer in the playback engine) will only cause timing problems when overdubbing. All tracks that were recorded simultaneously should be fine. I doubt it has anything to do with buffer settings unless there's more to your explanation (like if you were doing overdubs).

Clocking issues would almost certainly result in clicks and pops that you'd hear long before you tried to track anything. The clicks and pops I mean would not be from the click track, but from the internal clock of your converters. And I've had converter clocking issues before. They never affected, slowed down, or caused drift of any kind in playback. They were just annoying blips and cracks that made what I recorded useless.

What are you using to generate the click track? Pro Tools, or an external source?

If the click is external, ditch whatever you're using and just use the click in Pro Tools. They don't agree with one another if you're looking at the grid, so one of them is faulty and it won't be the grid in PT.

[Birdi]

Originally Posted by Jax

Using even a high latency setting (aka H/W buffer, or DAE Playback buffer in the playback engine) will only cause timing problems when overdubbing. All tracks that were recorded simultaneously should be fine. I doubt it has anything to do with buffer settings unless there's more to your explanation (like if you were doing overdubs).

Clocking issues would almost certainly result in clicks and pops that you'd hear long before you tried to track anything. The clicks and pops I mean would not be from the click track, but from the internal clock of your converters. And I've had converter clocking issues before. They never affected, slowed down, or caused drift of any kind in playback. They were just annoying blips and cracks that made what I recorded useless.

What are you using to generate the click track? Pro Tools, or an external source?

If the click is external, ditch whatever you're using and just use the click in Pro Tools. They don't agree with one another if you're looking at the grid, so one of them is faulty and it won't be the grid in PT.

yep you are right....you would expect clocking issues would give clicks and pops.

how exactly is the hear technologies stuff intergrated into the setup?

drifting could relate to a sync issue. is the protools synced to anything?

B