protools le uad-1 latency question

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foreverain4

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ok, so, let me understand this correctly. i have a uad-1. from what i understand, if, in pro tools le, the plugin latency is under the playback engine buffer size, protools DOES compensate for latency. so, with that, if my uad-1 is introducing 1024 samples of latency, and i set my playback buffer to 1024, PT should be compensating for latency, correct?
 
you are correct in understanding how PTLE's compensation works. 'Most' RTAS plugins are compensated for...however outboard, 3rd party cards are not. This is probably the key reason people are turned off by Pro Tools LE. A lot of people like the UAD-1 but run into latency issues when using LE. Something we've been fighting Digi over for quite awhile.
There's a petition over at the DUC trying to get people to fill out this form

-B
 
yeah, i posted the same question over there. no replies. i have filled out that form. so, pt knows when it is a dsp card, and when it is native? it doesnt treat the uad-1 plugs the same?
 
from what I've read, no it doesn't. I think the processing gets a little more complicated when having to send it out to another device first. LE uses the hardware buffers to help avoid the latency on host based plugins and I think it's not able to do that when you send the audio somewhere else to be processed instead.
Of course, I'm no software engineer...so I don't know how the inner workings of the two are.
The UAD-1 does come with a delay compensation plugin though that might help a little bit, but can be a pain when adding it to lots of tracks.
 
i was under the impression that for plugs, pro tools can handle up to 2000samples of latency correction. above and beyond that, it starts to register it as latency.

so if you're running a plug and it says that there's 300 samples of latency, it actually means there's 2300 samples, 2000 of which have automatically been corrected. why limit it to 2000 samples? well, that's what they've got the TDM/HD line for ;)


however, for external cards, PT LE offers no latency correction.



major bummer.
 
Delaycomp

My UAD-1 has a plug called delaycomp, that you have to apply to the tracks that you do not use a uad-plug. This automaticly compensates for the latency provided from the other uad-plugs I use.

Also, the delaycomp do not use any cpu, so that is no issue.

Hope this works out for you.
 
PT-LE does not automatically compensate for latency that is induce by a UAD-1 card. It's not that big of an issue though. I thought it was a porblem when I first started with PT-LE, but then I learned to put a UAD-1 latency compenesation plug on every track at the start of a mix. I set the delay comp plug at 1 plug-in plus one Pultec and that's all I need. I never use more than one plugin plus one pultec on each track. When you have the delay comp set on each track, it's easy. You just reduce the delay com by one lugin everytime time you add a UAD-1 plugin to a track. It becomes second nature. If you like the UAD-1 plugs and you work in PT-LE, you need to learn how to use the delay comp plug on every track. It's not that big of a deal.
 
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