PTLE and H/W Buffer Size

[Technology Hates Me]

I'm a brand new UAD-1e user. Bought the Extreme PAK to have every plug-in at hand. What better way to have multiple instances of so many incredible plug-ins, right? And right off the bat it's obvious how much better UA's 1073 and 1176LN are than anything that came free with Digidesign's Factory or Music Product Kit bundles. Sorry Digi - you guys really need to embrace the UAD-1! First thing I learned though is I'm gonna be adding a second UAD-1e if I want to really indulge myself (and I do, heehee,... ...eh, heh.)

So let me hit y'all with my first technical issue. And maybe this is an old issue, but I googled this forum and found nothing. So, sorry if this has been covered.

If this is a host-based dsp, then why am I having to raise my H/W Buffer Size to get the UAD plug-ins to work? If I don't go up from 128, I get the \"OS held off interrupts for too long\" playback engine dialog (-9094). Even at 512 I still get it occassionally. I'm really hoping to be able to track with at least one live comfort reverb running on a stereo aux track, but anything above 128 samples is gonna produce too much latency.

Also, when I do receive the error, I have to restart PT to clear the problem. Even disabiling the UAD plug-ins doesn't work - I have to restart Pro Tools. So, that's annoying.

Other than that, things seem to be running okay for me so far as a UAD newbie, but I've only played with it for an hour. For the record, I'm running Pro Tools LE 7.1 with Digi002 under Windows XP Home on a Dell XPS400 with 3GHz Pentium D, 4GB RAM, Intel 945 chipset, and NVIDIA GeForce 7900GS graphics card.

 

[Holly]

Well, seems like PTLE and UAD aren't the best combination. I also got these errors from time to time. The workaround that works for me is to use PTLE 7.3 and check the new function \"Ignore errors during Playback/Record\". This can cause some crackles and pops, but at least you don't see this annoying \"OS held off interupts for too long\" message.

 

[secretworld]

If you have the asio driver installed (for the 002) and you can get your hands on a cubase sx3 (wich also has full plugin delay compensation) (or even a cubase LE, wich hasn´t in V1 but does in V3) you could see if it is a system or a protools problem. I can keep my latency very low even with 2 uads almost maxed. I have worked with a 002 on a new mac (intel) and performance was ok afther we installed 2 gigs ram, 1 was totaly unusable.
Personally I use a cheap behringer dsp1000 for comfort reverb, wich ofcourse works even with 100ms latency, wich I use a lot when tracking vocals, cause it gives the least cpu strain (so no suprise clicks in a perfect take because I set the latency too low), I do need low latency when playing vsti´s life....
All the best
Vincent

 

[Technology Hates Me]

Thanks! I tracked some vocals last night and was able to run a single instance (and maybe more) of Plate 140 no problem. Buffer was at 128, which is as low as I can go even without plugs. So, that's pleasing.

Other than that, I don't think the UAD plugs are behaving any differently than using a lot of native plugs. That is, I have to raise the H/W buffer size either way. I just thought maybe it would be different using a host dsp. Guess not.

So really, I think my PTLE/UAD combination is reasonably syccessful so far. Fingers crossed. I won't get into heavy mixing for a few weeks though.

I will say, I don't find the manual delay compensation all that difficult. Just takes a little basic math and a logical mind.

 

[secretworld]

That´s great!
Hope it all works out.
Have fun.
Vincent