Glitch aggregate device

Hello
I'm having a problem on my macbook pro 15" 2.53 intel Unibody. I upgrade to 1.6.7. When I open any recording software and choose the audio device and aggregate device,(I use a Focusrite saffire pro 26 and saffire pro 40) after 3 or 4 minutes of use starting with glitches and disturção. Does anyone have the same problem? What is the solution of this bug? With version 1.6.3 did not have this problem.

Hi,
What exactly is your aggregate device ?
I have a Hollywood Dazzle DV Converter that connects over Firewire that is seen perfectly well in Panther, Tiger and Leopard and the relevant iChat versions.
8:31 PM Thursday; March 13, 2008

Similar Messages

10.4.7 with aggregate devices

Is anyone using 10.4.7 with an aggregate device? I saw someone on Big Blue Lounge mention a problem with that.
I'm using a Motu 828 mkII with an Alesis AI3 and a Motu 828 mkI as an aggregate device, so this has to work for me.
Thanks
Dual 2.7g G5 3gig RAM Mac OS X (10.4.6)

I've been having syncing problems for a while with my firepods, but I don't think its specific to 10.4.7. Audio glitches, artifacts when recording more than 8 channels while both pods are in use. I've done everything Presonus recommended, and I still can't fix the problem. It happens whether i record to internal or external on both my powerbook (internal firewire or high quality buscard) and intel mini. It doesn't happen every time, but considering a large part of my business is going to be live recordings, its just not cutting it.
The good news is that they made a firmware update that allows you to use the Pods as hardware pre-amps, so I can get an Ensemble or RME and upgrade...

For Patrick Sasso/Rohan -- Aggregate Device Question

Patrick and Rohan,
I noticed that the thread which Patrick started was "archived" and replies are not allowed. ( http://discussions.apple.com/thread.jspa?threadID=237354&tstart=0 )
Wondering what that's all about... But anyway, here's my question:
I'm also running a PCI-424 and some MOTU interfaces also (old 2408 and some 1224's), but I'm not using the aggregate devices settings. So I'm wondering if I'm not aware of some useful aspect of the whole aggregate device thing... What are you using the aggregate device setup for? Is there an advantage to using it with a straight-forward audio recording/playback situation using the existing capabilities of the PCI-424 + interfaces?

AFAIK this has always been possible (in panther....)
as the 424 is configured, but appears as 1 device to
the OS. Make sense or did I misread?
I think you could do it off the MOTU PCI without
aggregation, right? I am not a big MOTU guy but...
Well, let's put it this way: when I got my G5 one of the first things I did was pop in the 424 card, hook up the interfaces, run the MOTU config thingee and it recognized all 3 interfaces without a hitch. Great!
Then I installed Logic and without glitches it saw all of the MOTU ins and outs. Great!
In my 40 output setup, Logic simply numbers the outputs consecutively, in the order that the interfaces are plugged into the 424 card. Within Logic there is no designation of outputs belonging to any particular device, i.e., none of the audio output labels are designated "MOTU 2408" or "MOTU 1224 #1" or "MOTU 1224 #2". They're just outputs 1 - 40. So in a sense, the way Logic "expresses" the MOTU outputs, it's as though they're "aggregated" -- a single device.
It was only many weeks after I got my system up and running that I decided to explore the menus in the Audio MIDI Setup, and ran across this strange thing called "aggregate devices". There was zero, zero, zero documentation about it in the G5 manual nor in on-board Help, and a search of Apple's website turned up virtually no information. So basically, all this time I've been running with my MOTU interfaces, never configured anything having to do with aggregate devices, and I've yet to experience any kind of audio glitch with Logic. Great!
So in conclusion, I'd say that if an audio system consists exclusively of MOTU devices, setting up aggregate devices isn't necessary. Same situation with the MIDI side of AMS, really... with Logic you don't need to configure AMS MIDI to do anything. In fact, as you may have read in some of my prior posts, setting up MIDI in AMS actually creates more work than it's worth.
Therefore, my AMS is devoid of any user settings, except for the (seemingly) mandatory AMS-audio settings for "internal clock".

I am trying to use 2 MOTU 896's as an aggregate device in Logic Pro 8

I am using Logic Pro 8 on a Macbook Pro OS 10.6.8. I am trying to use 2 MOTU 896's as an aggregate device to have total of 16 inputs. I am daisy chaining the 896's via firewire. I can select channels 1-16 as inputs in Logic. I am getting signal input in channels 1-8 in Logic. However, I am getting no signal input in channels 9-16. I've also tried using ADAT light pipe as output from the 2nd device to the 1st one and that didn't work either. I have created the aggregate device under audio-midi setups and I've set the 1st 896's clock source to internal and the 2nd 896's clock source as the 1st 896. I've also tried both 896's clock source as internal. Has anyone had any success in using 2 896's as an aggregate device in Logic Pro 8? I need to use this setup to record a large band. I would greatly appreciate any tips that anyone has. Thanks.

David,
Learning is not a bad thing, I'm just saying what you thought MIDI did is in error, you're not the first.
Here's an article explaining what MIDI is and how it works, it probably seems less than you thought it capable of but the fact is, since it's standardization in 1983 it completely revolutionized electronic music. By the Way, the designers of the Prophet 8 (Dave Smith & Sequential Circuits) had a lot of input into the MIDI protocol, in fact, if you had to say one company/person came up with the basics of MIDI it was Sequential Circuits. They also came up with the first polyphonic, fully programmable analog synth. I had a very basic MIDI studio at the end of 1984.
http://entertainment.howstuffworks.com/midi1.htm

I cannot get MainStage 3 to find the Aggregate Device I am trying to use for input. I have two USB interfaces and need to use both for input.

The MainStage 3 Audio preferences window will not find the Aggregate Device input. I have both an Apogee Jam and a MOTU Mike Ultralight in USB ports. The Audio aggregator finds them and treats them as one device. The Aggregate Device does not show up in either Logic or MainStage. However, unlike Logic, MainStage does not show "System Settings" an input device.

The iphone 3G can only support 4.2.1
There are no newer updates availabel for this model.

I have three Blue Yeti USB Microphones, and when I try to create an aggregate device in Audio MIDI on my MBP it lets me select two microphones but not the third. I need all three for a podcast, any solutions?

I have three Blue Yeti USB Microphones, and when I try to create an aggregate device in Audio MIDI on my MBP it lets me select two microphones but not the third. At first I thought maybe the third microphone was just defected or something but I tested the mic individually and it works fine. It'll let me use two Blue Yeti's and another microphone but not three Yeti's at once.

David Boroditsky wrote:
The problem is that the mac chokes on having 2 identical mics attached at the same time.
Ive had 2 identical USB AT2020 mics connected at the same time on both macbook pro and macbook Air.
The "Yeti" mics, are, lets say undesirable, and low to mid computer consumer mics.

How to use an Aggregate device for Garageband (iLife '11)

Here is what I have,
Komplete Audio 6 interface (USB)
M-Audio Mobile Pre interface (USB)
2010 Macbook (white) running OS X 10.6.8
Garageband from iLife '11
I found out (supposedly) how to use both of the interfaces together by creating an Aggregate device.
I have gone through all the setup steps to create an aggregate device and put both interfaces on the Aggregate list to be used.
HERE IS WHAT I'M TRYING TO FIGURE OUT!
When I open Garageband and designate the Aggregate device as my sources of hearing and recording (Input and Output), the M-Audio doesn't even register sound. When I hook up the M-audio interface by itself, it works. Same with the Komplete interface. They work perfectly individually. But together, Garageband only recognizes channels 1 & 2 coming from the the Komplete interface.
1) How do I make it so both show up as recording to Garageband?
2) How can I hear them in my headphones (monitors)?
Thank you!

Maybe an alternative would be to put this logic into the select.
select u.object_name,
       u.object_type,
       count(case when u.object_type = 'TABLE' then 1 end) over () count_tables,
       count(case when u.object_type = 'VIEW' then 1 end) over () count_views
from user_objects u;This would count the number of tables and views in the data dictionary. And it is returned as a column value.

Audio MIDI setup not allowing aggregate device

I recently upgraded to a mac pro, and transferred everything from my old mac via firewire..
On my previous computer, using my aggregate device (Roland Fantom + Built-in output + built-in input) was no problem. I would simply choose in Logic my aggregate device under the core Audio preferences, and I could play logic software instruments with the roland keys, record audio through the roland, and play it back through the built-in line output no problem..
Now, on my mac pro, I can't do this because the aggregate device I created on my previous computer is not showing up under the devices pull-down menu in the core audio preferences in logic, and I cannot create a new aggregate device on this computer, as a matter of fact I cannot even seem to delete the old one... when i click the plus or minus (+/-), the blue shade highlighting the selected audio device just goes straight to the device at the top of the list (which happens to be built-in mic). it does not even allow me to deselect or select any checkboxes within the existing "9/25 aggregate".. when I try it just makes the devices listed in that window wiggle...
I have attached a screen shot of the Audio Midi setup screen (where one should be able to create aggregate devices)
Please let me know if you know what could be causing this..

Ojan36 wrote:
Could uninstalling and reinstalling Logic completely possibly fix it? I guess that would be unlikely because the audio MIDI Setup window is OS X, unrelated to Logic..
Correct.
when i click the plus or minus (+/-), the blue shade highlighting the selected audio device just goes straight to the device at the top of the list
This is one of the reasons why I am still suspecting some kind of permissions problem, even though you said this user has Admin privileges. I suspect a permissions problem because the symptom you described ("the blue shade highlighting the selected audio device just goes straight to the device at the top of the list") is exactly what happens if you do not have Admin privileges and you press the + button.
I think this issue has to do with the fact that there was not a clean install of snow leopard
I agree. My theory is that something about the way you moved items to this machine led to a permissions problem, and this permissions problem is causing AMS (Audi MIDI Setup) to behave the way you see.
I recently upgraded to a mac pro, and transferred everything from my old mac via firewire..
I know you connected via FireWire, but how did you control what was being transferred? Did you use Migration Assistant, or some other method?
In my comment here, I advised 55plus to check something. What happens when you check the thing I advised him to check?
You have not mentioned Disk Utility. I would use it to Repair Permissions. Then launch AMS. Does the + button work now?
Next I would try this: create a new OS X user account, with administrator privileges, and log in as that user. Then launch AMS. Does the + button work now?
55plus, I intend to respond to you too, but this is all I have time for right now.

Using a Tascam US-122L in an Aggregate Device

I posted this question in the Logic Pro forum, but I suppose this one is also relevant. Any help would be appreciated. http://discussions.apple.com/thread.jspa?threadID=755072

works fine here on 10.4.8 and a 15" 1.5Ghz G4 powerbook and an old us-122
Just for the record: When i first open the aggregate device editor no devices show up.
They do when i hit the "+" next to "add and remove aggregate.."

Aggregate device: BIG PROBLEM with mbox(digidesign)

i must admit, meanwhile i am truly desperate...
MAYBE ONE OF YOU HAS THE SAME EXPERIENCE AND HENCE A SOLUTION TO IT... problem is as follows:
i have a mbox1 connected via usb to my ibook g4 1.33ghz (ppc) and want to make an aggegate device in the osx 10.4.9 system preferences (audio-midi-setup) together with the built-in audio in order to be able to use 4 audio outs simultaneously within NI traktor dj studio 3 so that i'd have 2 channels for master out and the other ones for monitor.
but: when trying to make the aggregate device, mac os only shows up the built-in audio. the digidesign mbox seems to be vanished, although i can use and choose it seperately as my main out. but not in the latter mentioned dialogue. so what the heck is wrong? btw, i have coreaudio 7.3 installed properly (the one that fits for ppc-macs)...
- is it maybe because of clocking issues?
- built-in is on 16bit only, the mbox is on 32bit... what about this?
- is the mbox1 (folks, i just purchased it 5 years ago) not working with newer systems anymore in full effect?
- is it the coreaudio-driver itself (although it is visible/selectable in audio preferences)?
PLEASE HELP! I DONT KNOW WHAT TO DO NOW ANYMORE...
sincerely yours
00piano

any suggestions out there?
plz help!

Latency and Aggregate Devices

Hello. I'm using an aggregate device for the first time. I have a Line6 Toneport GX and a Presonus Firebox; I combined them into an aggregate device in Audio MIDI Setup and can access each interface in Express. Pretty cool.
However, latency seems to be an issue. For example, there is noticible latency when playing through the Toneport - to the point where I get thrown off while trying to play live. I disassembled a number of components and tried just the Toneport by itself and found the latency to be a non-issue.
Do aggregate devices introduce the latency of each interface? Does the fact that they're on different busses (one USB 1.1, the other FW400) contribute to my problem?
Is latency something that using a faster connection (say, the USB 2.0 on my laptop from work) would help correct? Finally, would the faster processor from my work machine solve this issue as well?
Thanks, all.
James DiStefano

USB 1.1 is slow. Many devices just wont work on it.
If you use just one device or the other do you get latency then?
It maybe that there is a bottleneck of data from the firewire port waiting for data from the USB going into the aggregate device. To be honest I don't know how the aggregate device works, but you definitely have 2 very different data transfer speeds into one device.
If the USB device, whichever it is, is USB 2 compatible, you can get a USB 2 pci card for about £15 UK, perhaps 20-30$ US with 4 or 5 USB 2 connections.
You are using basically the same setup as my previous machine (G4 1.25GHz dual). Installing the USB 2 card opened up a whole new world for that machine.

Aggregate Devices - any tips appreciated

Can anyone give me some pointers to info on handling aggregate audio devices with L8 + 10.5.1? Keyword and topic searches across the forums don't return anything useful.
This is the setup:
2x MOTU Traveler 22-in/22-out interfaces (counting ADAT, SPDIF + AES/EBU), each running identically w.r. to data rate (48kHz), clocking (normally internal), and FW connects (each to its own PCIe card+bus) into the MacPro.
AudioMIDI Setup is OK w.r. to making the pair into an Aggregate Device, which "sticks around" between sessions/peeks.
However Logic8 (and every other host) does not recognize the aggregate dev and sees only two separate units. This isn't the end of the world, and there are workarounds in the studio (e.g. going to analog audio + sub-mixes). But it puzzles me as to why I can't stay digital + aggregated, and instead have to be limited by the CoreAudio "rule" of "one device for input and/or output".
Previously, under 10.4.x (and for a while under 10.5.0) the setup worked without problems, even when clocked externally.
Any ideas on where to look / how to find out what's going on?
Any advice much appreciated.

Found the answer ... make the aggregate device with root privileges before using.

Can't create aggregate device?

Can anyone help me here, I know exactly how to create an aggregate device but when I go to hit the check boxes for various ins/outs it flashes like it worked for a second then appears back where it was on the list, unchecked. I have no idea what the problem is, but it won't let checks appear, it just appears checked and goes tot he top of the list for about a nanosecond and then appears again at the bottom unchecked, hence i cannot create aggregate audio devices.
EDIT: also, i've tried restarting, etc numerous times to no avail.
Message was edited by: samonguitar

As a longtime user of Aggregate Devices, I can assure you that this issue is in fact real, and VERY new. What has happened since two weeks ago since I last used my setup?!?
Basically everything looks normal until you try to check the box to add the device to the list. You can click the plus sign, but when you try to check the boxes the check mark flashes in the box, and the "selected" item moves to the top for an instantbut then returns, unchecked to its original location in the list.
The forums and the genius bar have been no help (because I know more about this software than the staff) and I have tried varying the USB/firewire ports, only using certain devices, trying different devices... essentially everything I can think of save a system restore to earlier last month, which I do not have time to deal with right now.
This is a nightmare as I have a recording session tomorrow and have spent all day trying to figure out what is wrong... with no end in sight. Does anyone have a solution?
Apple, please address this issue ASAP!

What is a (Logic Express) aggregate device?

Im not a complete newbie to the world of music tech, I'm just getting back into it after a few years away. There's one term which keeps cropping up on here which is completely alien to me:
Aggregate Device
What is an aggregate device? It seems to refer generally to sound cards or audio interfaces within a setup, but is there something special or different about the way the audio interface is set up in a studio which means it is referred to as an aggregate device? Is it just a different term for "audio interface"? ....or am I missing the point completely?
Many thanks

What is an aggregate device?
It's a virtual device which is created in Audio/MIDI set up. Its purpose is to combine two or more actual devices into one so that Logic can recognize it and use it for inputs and outputs. A 'device' also includes your Mac's built in audio inputs and/or outputs.
Unlike GarageBand, Logic can't use separate devices for input and output (this is ridiculous, but nevertheless true) so creating an aggregate device is a workaround.
Is it just a different term for "audio interface"?
Sort of - it's a virtual audio interface.
Here are some links:
http://support.apple.com/kb/HT1215
http://www.apple.com/pro/techniques/aggregateaudio/

Help setting up my Aggregate Device

I'd like my aggregate device to include my interface and also my midi devices. Right now the built in line driver i can hear midi tracks but cant record audio. When my driver is set on the interface i can record audio but i cant hear the midi notes as i play them and they also dont play along with the song when its completed (playback).
This has been a problem of mine for awhile. i had it solved at one point, but to make a long story short, the problem is back.
Help ?

Try setting up the device in a new user account. or visit register.apple.com and verify your device is registered

Glitch aggregate device

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