UAD + G4 + Mackie D8B + Akai MPC 3000...sync issues.

Hello!
I run Logic 6.4 on my G4 dual 1000, with two UADs installed and working properly. I know how to get around the more ordinary latency issues - in short, everything is fine and dandy as long as everything is kept inside the mac.

But get your head around this;
I run Logic as my master, and the MPC 3000 is perfectly sync'ed via MIDI. All the audio from the MPC is run through the D8B board, as is the audio from Logic (via a Hammerfall card). On Logic I've got all vocals and additional instruments, routed to different buses for the different main parts, and then out to individual outputs for further treatment on the D8B board. So far, all good.

But, let's say i want to insert for instance a UAD-reverb (or the lovely new space echo) on one of the other buses. Ok, of course I then add the appropriate delay compensation on the \"original\" buses, and everything is still lined up inside the mac. BUT - the previously perfect synced MPC is now a little early...

I guess I should halt the midi signal to the MPC in some way - but how much? Inside Logic I am able to halt it by a maximum of 100 ms, but is this enough? And how do I know exactly how much to halt it? Any other, and better, ways around this?

With thanks in advance,

Poppa Lars/Norway

Take a look at this...

http://www.chrismilne.com/uadforums/vie ... php?t=4138

Maybe the sollution to your problems is to route all the outputs from your MPC3000 into the Hammerfall (using the AUX channels inside Logic) and then route them together with your other tracks out to your d8b again ?

Maybe this won't do much good, though it's probably worth a shot...

Hello again!
I am afraid that doesn't fix anything. I run the analog outputs from the MPC to the analog inputs on the D8B, and use the desk as a mixing tool. i am not interested in working with these sounds inside Logic. The Hammerfall card I've got doesn't even have analog in-/outputs, it's all digital between my Mac and the D8B.

So the MPC, working as a slave to Logic, starts when it should. But the audio from Logic is processed with my UAD cards, and it's all a little delayed - and no longer in sync with the music from my MPC...

I guess this problem should be the same for everyone who's working with MIDI-sync'ed hardware/sound modules in conjunction with UAD-processed audio in their DAW of choice...?

Workarounds, anyone?

with regards,

Poppa Lars

Poppa,

It would probably fix your problems, but that doesn't add up to much in your situation considering you don't have any analogue inputs. Just to be clear - I'm not really suggesting that you should work with these signals inside Logic... Just route them trough your AUX busses so that they audiowise should be in sync with the rest of your music.

I also understand that sending the MPC outputs to your d8b makes alot more ense, but to the best of my knowledge there is no other way around the problem. Of course if anyone else should know of one, feel free to speak up.

I use Logic 7.2 and there's still no way to automaticly delay the midi outputs to synths, etc. to be in line with the compensated audio/virtual instruments when you have one or several DSP cards.

Wish I could be of more help.

Ok, thanks anyway... For now I basically have to use Logic´s own reverb and echo on the buses, to keep it all in line. Or the D8B, of course.

BTW, you say there is no automatic way to delay the midi signals from Logic. I know it´s possible to delay this manually, but only up to 100 ms, as far as I have been able to find out. Do you know if it is possible to delay this signal even more? And how do I figure out exactly how much is really needed, if I run for instance two UAD plug-ins on the buses? (in other words, how many miliseconds latency/delay do one of the \"ordinary\" UAD plug-ins cause?)

with thanks in advance,

Poppa Lars