Forums > MaxMSP

Multiple Mic Input

November 28, 2007 | 8:13 pm

Trying to get MAX to recognize multiple Microphone inputs using USB microphones. I’ve tried using the hi object but can’t seem to get my mics to show up on the menu ( was using a mac ). They work fine with the Audio Input object but that seems to only allow input from one microphone at a time.

Any thoughts? I’m not recording anything, I just need the amplitude of the sound being picked up by each individual mic.

My Mics:

http://www.newegg.com/Product/Product.aspx?Item=N82E16836111601

Thanks.


November 28, 2007 | 8:22 pm

Hi There,
If you are on Mac, you will need to set up an aggregate device in
AudioMIDI setup.

Best,
Andrew B.


November 28, 2007 | 10:38 pm

Sorry, I don’t know very much about MAX and even less about Macs. Could you tell me where to access the AudioMIDI setup? or point me to a tutorial if you could please?

Thanks


November 29, 2007 | 4:47 am


November 29, 2007 | 6:00 pm

How do I set up the aggregates? I think I found the file, but it had no application associated to it, so I opened it with a text editor, and thus there is no help option.

this is the file that showed up…
com.apple.audio.AudioMIDISetup.plist


November 29, 2007 | 6:22 pm

nvm that last post, i found where to change it, thanks.


November 29, 2007 | 6:24 pm

In your Applications folder is another folder called Utilities. In the
Utilities folder is an app called AudioMIDI Setup. Open this up. The
rest should be more or less self-explanatory. For more info on setting
up aggregate devices, a quick google search on "aggregate audio device"
should fix you right up.

Best,
Andrew B.


November 29, 2007 | 6:27 pm


November 29, 2007 | 6:29 pm


November 29, 2007 | 6:34 pm

See below:

http://www.apple.com/ca/pro/techniques/aggregateaudio/

Dan

At 10:24 AM -0800 11/29/07, Andrew Benson wrote:
>In your Applications folder is another folder called Utilities. In
>the Utilities folder is an app called AudioMIDI Setup. Open this
>up. The rest should be more or less self-explanatory. For more
>info on setting up aggregate devices, a quick google search on
>"aggregate audio device" should fix you right up.
>
>Best,
>Andrew B.


Dan Nigrin
Defective Records
202 Hack / PC-1600 User / VSTi Host / OMS Convert / Jack OS X / Major
Malfunction
http://www.defectiverecords.com

http://www.jackosx.com


November 29, 2007 | 6:38 pm

No thats the preference file.

Applications/Utilities/Audio MIDI Setup.

In the Audio file Open the Aggregate Device editor. Create an
aggregate device with your mics. Use that device in Max.

Good Luck.
j5

On Nov 29, 2007, at 12:00 PM, KR wrote:

>
> How do I set up the aggregates? I think I found the file, but it
> had no application associated to it, so I opened it with a text
> editor, and thus there is no help option.
>
> this is the file that showed up…
> com.apple.audio.AudioMIDISetup.plist


November 29, 2007 | 7:56 pm

I created the aggrigate device, and within MAX I was able to see an input for each of my microphones under the I/O Mapping for the ADC, but when I tried to recieve input from the Mics, it would only output from the Microphone defined as input 1 under the I/O Mapping.

Also when I hooked up all 4 microphones, ( the first test i did with only 2 mics ) it crashed max everytime I activated the ADC. Not sure if that was a computer issue though or a MAX issue.


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