[QLab] How to add reverb on Qlab outputs currently

[*]

I know there is no direct way of adding reverb to Qlab outputs internally
(sure would be cool) but what other ways are their without using an
external I/O that can provide it?

If it's a huge mess (cost or complexity) to achieve, no need to describe
it all but if it's a matter of purchasing X cost effective application or
doing something simple like routing audio thru Garage band / Logic via
Sound Flower, please let me know.

If I always had my MH 2882 with me, I'd do it there.

Thanks in advance,

ra byn (robin)

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[Paul Gotch]

On Mon, Jul 04, 2011 at 05:36:44PM -0500, * wrote:
> If it's a huge mess (cost or complexity) to achieve, no need to describe
> it all but if it's a matter of purchasing X cost effective application or
> doing something simple like routing audio thru Garage band / Logic via
> Sound Flower, please let me know.

Theoretically you can ouput from QLab to SoundFlower then input from
SoundFlower to AULab, which is a AudioUnit plugin host supplied with
the Apple Developer Tools, apply MatrixReverb AU then send the outputs
from that to the physical outputs.

I think this has come up before and the stability (of AUlab) and
latency implications of such as solution have been questioned. I don't
know if there are any better AU (other other plugin) hosts that could
be used in the same way.

-p
--
Paul Gotch
--------------------------------------------------------------------

[raymond soly]

there are several ways of doing this and with reverb, latency may or
may not be a problem.......first and possibly easiest is to record the
reverb on separate tracks and playback as a group from within
Qlab.....adjust levels as needed, you can also send to different
outputs( surrounds etc)..... second way I've used is send Qlab outputs
that need teatment to the adat outs or other digital output from your
interface to Reaper or similar soft (I like reaper as it has extremely
low latency and is rock solid) but you can use Logic or other..process
as you need and send these to the analog outs......depending on what
you need to process and how much you'd be surprised how much you may
be get away i terms of latency......no need for soundflower or jack.....

hope this helps

Ray

[Ralph Cornforth]

Look at Hijack Pro. Not only does it allow you to record any audio passing through your Mac, but it allows you apply AU effects to any audio passing through.

Ralph C

[cedricl]

That's exactly what I was playing around with today. Audio Hijack
wouldn't "hijack" QLab directly (Audio Hijack isn't 64 bit ready, but
it would "hijack" System Audio, which were my direct digital outputs.
I just applied whatever plug-in I wanted, in my case, some
compression, and there was no latency. I was going between the effect
in bypass and with it in and there was no latency when hijacking the
System outputs.

[luckydave]

On Jul 13, 2011, at 10:51 PM, cedricl wrote:

> That's exactly what I was playing around with today. Audio Hijack
> wouldn't "hijack" QLab directly (Audio Hijack isn't 64 bit ready, but
> it would "hijack" System Audio, which were my direct digital outputs.
> I just applied whatever plug-in I wanted, in my case, some
> compression, and there was no latency. I was going between the effect
> in bypass and with it in and there was no latency when hijacking the
> System outputs.

You can also route through Soundflower to send QLab outputs to Audio Hijack if you need more than two outputs, or different routing than the built-in output.

luckydave
luck...@figure53.com

[Rich Walsh]

On 14 Jul 2011, at 03:51, cedricl wrote:

> That's exactly what I was playing around with today. Audio Hijack
> wouldn't "hijack" QLab directly (Audio Hijack isn't 64 bit ready, but

QLab's not 64-bit either. You can hijack QLab as an application: you have to select "MegaMix mode". Last time I tested this I thought it was hijacking everything and collapsing it to stereo; now I think it is only capturing the first pair of outputs and then rerouting them to come out of the system default outputs...

WireTap Studio does the same thing.

Rich

[Paul Gotch]

On Thu, Jul 14, 2011 at 07:14:00PM +0100, Rich Walsh wrote:

> QLab's not 64-bit either. You can hijack QLab as an application: you
> have to select "MegaMix mode". Last time I tested this I thought it
> was hijacking everything and collapsing it to stereo; now I think it
> is only capturing the first pair of outputs and then rerouting them
> to come out of the system default outputs...

I believe Audio Hijack actually just uses SoundFlower underneath so
really you get isa different GUI rather than configuring Qlab to output
to a SoundFlower device using SoundFlowerBed to route then configuring
SoundFlower as an input in whatever program you are using to host your
reverb plugin. With the limitation that it can only do stereo in the
'free' version where as SoundFlower itself can do 16 channels.

Obviously all this pushing around comes at some latency cost.

-p
--
Paul Gotch
--------------------------------------------------------------------

[Jarrett Krauss]

I would strongly advise against using AU Lab in any sort of show
condition. I tried it a few years ago and it is totally unstable.
Ultimately, I stopped using AU Lab and installed hardware effects and
processing.

Jarrett

On Jul 4, 5:12 pm, Paul Gotch <paulg+q...@chiark.greenend.org.uk>
wrote:

[raymond soly]

FWIW, the most effective way I found for doing this has been thru the adat outs and ins of your interface, assuming you have any.....although any of digital type will do......Qlab outputs to adat  outs ...route back  adat out to adat in.......use reaper, selecting adat ins as inputs and re-route after your processing to analogue outs..... i've used reverb, compressors and EQs with Qlab and it is not only very stable but latency is low as long as you don't over do it i.e pile up processing streams.....

hope this helps

Ray