Logic Master, AU-Lab Slave: Receive midi clock from Logic?

Dear board members,
I've managed to establish a very stable way to run PPC Plugins on Intel Macs by using Apple's AU-Lab launched in Rosetta mode (via its info panel) and activating Apple's NetSend + Receive Plugins. After creating an external midi instrument in Logic's environment I'm able to play any PPC Plugins with AUlab as their respective host.
This situation given to you as an inspiration, I would very welcome your thoughts on this two core questions:
1.) How could on make AULab receive the correct midi timing clock from Logic? This is important if you have timing dependent PPC Plugins, i.e. Wizoo's Latigo.
2.) What would be an appropriate way to compensate Latencies occuring inside Logic? I know its possible to record the incoming audio and set the audiofile then manually to the correct timing by draging but wouldn't it be fantastic to hear it in realtime (by negative sample delaying)
Thanks for your input in advance!
All the best,
- Vic

I spent a bit experimenting with this too.. A bit cumbersome, but it works... I have a Mac Pro 8 core, and a G5 powermac (PPC).. I was trying to use 3rd party plugins synths on Powermac, to record into Mac Pro... The delay made it impossible to really play along with it.. There was some kind of latency comensator on the AU or MIDI receive (I forget which) but I couldn't get that to really work well.
I ended up, recording the midi performance on the Mac Pro, using a dummy instrument, then I fed the midi to the Powermac and bounced it's audio back to Mac Pro...
ANSWER TO QUESTION 2 - I didn't try it, but if you were just going to use your PPC mac to process audio, you could assign EVERY track (except the one going to PPC) to a logic sample delay, and then delay that.. Send the track to the PPC, (in real time) process that and then back to MacPro... It can work,
ANSWER TO QUESTION 1 - I didn't see an obvious solution to sending the midi timing clock... and you really do need to have it.. Logic is capable (or used to be - haven't checked in years) of using something called IAC. You create it in the envirement - It's was similar to rewire...
Rewire also might be able to handle it - now that I think about it....
ANOTHER APPROACH - If you have a midi box you could take that midi out the LOGIC master.. (turn it on it settings) and patch it into the 2nd computer and have the application on the 2nd computer sync to that.. But if you were trying to merge a midi clock from one source and a midi keyboard from another... that's another problem to work out..

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You set up an external MIDI instrument channel strip, select it and, in edit mode, look at the channel strip inspector and click on the MIDI output tab where there is a checkbox to select "start sending MIDI clock" on patch change.
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Thanks,

Hi,
I'm syncing a Roland MC-909 Groove Box with Logic. I'm also using a MOTU MIDI Express interface. The MC-909 syncs to Logic, thus it is in Slave mode. Under Preferences->Sync->MIDI Sync Project Settings, I've discovered something odd, and I'm trying to understand it. It could be just a lack of understanding regarding the MIDI Spec.
Under MIDI Clock, I necessarily need to set the destination to the MC-909. I cannot use 'All' or else the MIDI Express starts playing back at 8x the tempo set in Logic. Not sure why this happens but its probably something weird with the MOTO interface. Anyway in Logic, MIDI Time Code (MTC) is disabled, Song Position Pointer (SPP) is disabled, and MMC is disabled.
So basically I'm only sending MIDI Clock to the MC-909. Here's what is wierd: As I locate to different places in the Arrange window (not in play mode), the MC-909 is locating to the correct time offset within the pattern! This basically guarantees that you can start the Logic song anywhere, and the MC-909 will start playing back the pattern at the right time. I don't understand how this can be happening given that I've disabled SPP in Logic. The only sync communication between Logic and the MC-909 is MIDI Clock, but I don't believe that MIDI Clock is even capable of transmitting offset information that specifies the time-offset into a drum machine pattern, Does it? Or is Logic sending SPP info as I click on different locations in the Arrange window?
Another point, is that if I select to transmit MIDI Clock to another device other than the MC-909, but still using the MOTU MIDI Express, then the MC-909 plays back synchronously (i.e. its getting MIDI Clock from Logic, even though Logic isn't sending MIDI Clock to the MIDI port connected to the MC-909), but it does not track the pattern offset described in the previous paragraph. The only way I can get the pattern offset to work, is if I select the MIDI Clock to be sent to the MIDI port connected to the MC-909.
I would like to figure this out because I'm thiinking about buying an external MIDI synchronizer, but I don't want to lose the ability to have logic specify the offset into the pattern on the MC-909
Thanks,

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Pancenter,
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It actually got better for me when I installed 10.8.x... along with the newest Motu drivers.. and in fact I can't remember the last time I had any unworkable issues with syncing though admittedly I haven't done that much syncing recently.
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I have been on a frustrating seacrh thru the NET to see how I can sync my Rc 300 Loopstation to Logic
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I have been a longtime Logic user and apple fan, but thias is frustrating
The Midi Sync capabilities with Logic as slave are frustrating.
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Please bring back midi clock ( as a slave ) to Logic after all it is there as a master setting!!!!!

Probably not going to happen, MIDI sync is taken from the audio engine, MIDI IN sync doesn't provide the resoultion required to run audio correctly, plus MIDI tempo fluctuates. Logic is not the only DAW to remove MIDI IN (slave) sync, Cubase and Nuendo did the same.

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1) Where is that located?
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G

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I wanted to ask about adjusting external midi devices delay for input latency compensation.
I have been trying to line up Ultrabeat and TR-606 synced via MIDI clock and a Kenton DIN sync, and have been adjusting the MIDI clock delay and I can get VERY close. Usually -4ms is the magic number, but -5ms is too much, and puts the drum machine before the beat.
My question is, is there ANY way to make finer adjustments? How are other people dealing with syncing midi devices accurately without having to slice up audio after the fact?
I toyed aroung with record delay, and it did not seem to actually do anything.
I am running a Mac Pro Quad 2ghz with an Mbox 2 Pro. My buffer is set at 64 with I/O Safety Buffer on.

An I/O buffer size of 32 may be too low under certain conditions. You'll know if it's OK to leave at 32 if you run a session with lots of plugs and/or audio tracks and don't experience audio glitching.
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Logic Master, AU-Lab Slave: Receive midi clock from Logic?

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