Au Lab 2.2.2 and Logic Pro

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Level 1

45 points

Au Lab 2.2.2 and Logic Pro

So I've discovered Apples cheeky little secret..... Au Lab 2.2.2.

While Apple busy themselves making Logic fully functional as a multi-core multi-thread midi recording app, Au Lab 2.2.2 works very adequately as a standalone 3rd party AU host. ActivityMonitor shows an even distribution across all 8 cores when working this way. (Hallelujah)

Bung all your CPU thirsty 3rd party AU's into AuLab and you're good to go. Control them via IAC from inside Logic enabling you to (at least) capture your midi performances inside Logic

HOWEVER Wouldn't it be nice if the soundflower audio outputting from AuLab and into Logic WASNT so quite latent.

Is anyone out there an AuLab 'poweruser' cos..... and here comes the question.

Can one monitor the main AuLab core audio outputs (low latency) whilst at the same time bus multi outputs of, eg Omnisphere via soundflower into L9.

Why you may ask do you wanna do this? Because its always good to have a 'hardcopy' of ones midi perfornamces

FYI folks my latency ridden soundflower audio originates from an Ensemble/Soundflower Aggregate Device

Posted on Mar 4, 2012 3:07 PM

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Answer 1

CCTM

Level 6

13,159 points

Mar 5, 2012 12:14 AM in response to welshwiggle

Hi

How about sending the AULab audio out through the Ensemble, and back in a pair of inputs into Logic?

CCT

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Answer 2

welshwiggle Author

Level 1

45 points

Mar 5, 2012 1:16 AM in response to CCTM

So could I, for example route 8 ADAT outs from AuLab and bring them back to Logic in via a physical optical cable?

ie Connect a cable from the Ensembles out to the in?

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Answer 3

Mar 5, 2012 7:31 AM in response to welshwiggle

I am currently using AU Lab with Logic, and what I did was create a virtual bus with Apogee's software. I have a Symphony system which might be similar to Ensemble. Maybe see if your Ensemble software system allows you to setup a virtual output. I only have created one but I believe you can make up to four stereo pairs.

So when you create your AU Lab project, you will set your output to this virtual bus - and in Logic, you can set an Aux's input to this same virtual bus. Midi is routed via IAC. It results in pretty good latency for real time playing.

Hope that helps

Ken

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Answer 4

welshwiggle Author

Level 1

45 points

Mar 5, 2012 7:43 AM in response to Ken Chan1

Ken This is great

We're both using Maestro so very cool

Could you upload a screenshot of your Maestro input and output routing?

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Answer 5

welshwiggle Author

Level 1

45 points

Mar 5, 2012 9:54 AM in response to welshwiggle

oops

Apogee tell me you have software I dont. I cant use VBus

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Answer 6

welshwiggle Author

Level 1

45 points

Mar 5, 2012 7:13 PM in response to welshwiggle

Latest update

Sunflower aggravated device does actually work with acceptably low latency.

After a bit of testeing it seems clear that start up order is as follows

Au Lab(Hosting Omnisphere) FIRST as well as SD2, Ivory 2 Kontakt 5 standalones THEN lastly L9

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Answer 7

Mar 5, 2012 7:21 PM in response to welshwiggle

Yeah, I was wasn't sure if Ensemble could do Vbus. You could check your Maestro Control window, and see if there is any thing you can select in the "VBUS Selections" pull-down menu just as a check...

Regards

Ken

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Answer 8

welshwiggle Author

Level 1

45 points

Mar 5, 2012 7:33 PM in response to Ken Chan1

Ken I'm interetested to a screenshot of your Au Lab set up

Any chance?

Or could you talk though your routing

Here's my set up incorporating Omnisphere as a multi out via soundflower

Do you fire up your apps in any particular order?

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Answer 9

Mar 7, 2012 3:34 AM in response to welshwiggle

I think my solution will not help much if Ensemble is not capable of VBus, but anyways,

In Maestro, you can see I have set up 1 vbus stereo pair (see pic). In AU Lab, I set my output of the project to this vbus (see pic). When I create an instrument, i used an IAC1 bus for midi input. Then in Logic, I will create a multi set to IAC1. I also create an Aux object with it's input set to the Vbus.

Not sure if this helps you. Also, I have not yet figured out how to address different midi channels within an IAC bus. So I can only address channel 1 of Omnisphere, for example. And also I have never ever tried to setup more vbuses and route AU Lab instruments to other auxes within Logic (but this should be no problem). In other words, if I want another Omnisphere sound in AU Lab, I open another plugin instance, and use another IAC bus to address it.

I don't think it matters if you fire up any app in any order, unlike ReWire. Once you setup the Vbus in Maestro, the setting is permanent (no need to open Maestro after that).

Regards,

Ken

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Answer 10

welshwiggle Author

Level 1

45 points

Mar 7, 2012 7:30 AM in response to Ken Chan1

I'm on the way to Symphony I/O maybe 6 months from now with a 24 analog I/O config incorporating their new Thunderbridge

Meanwhile I AM using Omni and Ivory inside Au Lab and the Omni as an 8 Patch intrument. I then have the 8 stereo chaneels routed back into Logic via Soundflower (See Above)

I'm using a Nanokontrol to patch switch inside Omni and all that is done from L9 via a discrete IAC

You should be able to play 8 paches inside Omni as the patch respond to being selected (or not). the midi channel doesnt matter in this scenario

Lemme know if you want more info

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Answer 11

Mar 8, 2012 5:55 PM in response to welshwiggle

Hm, sounds interesting. Do you mean that you only need to open one instance of Omnisphere within AU Lab, can load 8 parts into it, and separately play each individual part in Logic? You are using IAC to address Omnisphere? I cannot get Omnisphere to listen to any other Midi channel on the IAC bus except for Channel 1. So I would be interested to know how you set that up.

I don't really need to have separate outs but I guess it's only good to know I have that flexibility in either Vbuses or Soundflower.

Thanks,

Ken

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Answer 12

welshwiggle Author

Level 1

45 points

Mar 9, 2012 2:48 PM in response to Ken Chan1

The IAC one channel problem is not a problem at all although it seems that way....Had me fooled for a while

So the entire 8 patch Omni instance is controlled by Channel 1 from Logic via the IAC bus that I've created

There's a few things you gotta do in L9 in the environment however Do you know about all that?

Have a second look at my pic above and see how I've routed AU Lab outs to Soundflower

In my aggrevated device I have SF coming in on 19-34. So I create 8 Stereo Audio tracks in Logic with inputs 19/20.......33/34

There's a touch of latency on the 8 stereo tracks so I leave the outputs empty in Logic on record and monitor through Ensemble's main 1/2 out See Au Lab pic above

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