Difference between revisions of "Audio Interface - Mixing Bench"

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This lab has a MOTU 828mk3 audio Interface.  It has multiple inputs and outputs.  Unfortunately the order and labeling of the inputs and outputs in the audio applications can be confusing.
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This lab has a '''Apollo x8''' audio Interface which has multiple inputs and outputs.   
  
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== Inputs ==
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* On the front there are two HI-Z inputs inputs (labelled '''HI-Z 1''' and '''HI-Z 2''')
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** Theses are for low level signal like electric guitars.  Only use mono 1/4 cables.
 +
* There are 4 XLR mic inputs on the back of the interface.
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** There is a panel with 4 XLR jacks below the interface.
 +
** These are connected to the 4 mic inputs.
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** Microphones can be connected to these inputs using XLR cables (not included in the room).
 +
** Each input has:
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*** Trim control knob for setting input levels
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*** Pad for reducing input levels
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*** 48V Phantom Power for powering condenser microphones
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*** Low cut filter.
 +
* There are eight 1/4" line level inputs on the back.
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** Theses are not connected to anything  
  
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== Outputs ==
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* Outputs 1 and 2 are connected to the '''Mackie Big Knob''' monitor controller.
 +
* The other outputs are not being used.
  
 +
== Labeling ==
 +
* The various audio applications may refer to the inputs and outputs with slightly different names.
 +
* We have tried to set the preferences to meaningful names but sometimes they may revert back to the default names.  
 +
* Read the [[Apollo x8 Interface]] article for additional information  
  
Inputs
 
There are two XLR/1/4" mic/instrument inputs on the front.
 
Microphones can be connected to theses inputs with XLR cables.
 
Guitars can be connected with 1/4" cables.
 
Each input has:
 
Trim control knob for setting levels
 
Pad for reducing inout levels
 
There are eight 1/4" line level inputs on the back.  
 
Inputs 1 and 2 are connected to the patchbay.
 
The main outputs of the mixer are connected directly to inputs 3 and 4.  
 
The other inputs are not being used.
 
Do not connect or disconnect cables on the back.
 
 
 
 
 
Outputs
 
There are two XLR Main outputs on the back.
 
Theses are connected directly to the Volume Control Box.
 
There are eight 1/4" line level outputs on the back.
 
Outputs 1 and 2 are connected to the patchbay.  
 
The other outputs are not being used.
 
Do not connect or disconnect cables on the back.
 
 
 
 
 
Labeling
 
The various audio applications may refer to the inputs and outputs with slightly different names.
 
We have tried to set the preferences to meaningful names but sometimes they may revert back to the default names.  
 
 
 
 
 
Inputs
 
Mic/Instrument inputs come before the line inputs.
 
This makes the numbering of the analog inputs confusing.
 
For example analog input 1 is input 3.
 
MOTU Inputs Software Label
 
Mic/Instrument 1 Input 1
 
Mic/Instrument 2 Input 2
 
Line 1 Input 3
 
Line 2 Input 4
 
Line 3 Input 5
 
Line 4 Input 6
 
 
 
 
 
Outputs
 
The Main outputs inputs come before the line outputs.
 
This makes the numbering of the analog outputs confusing. 
 
For example analog output 1 is output 3.
 
MOTU Outputs Software Label
 
Main Out 1 Output 1
 
Main Out 2 Output 2
 
Line 1 Output 3
 
Line 2 Output 4
 
 
[[Category:Audio Mixing Benches]]
 
[[Category:Audio Mixing Benches]]

Latest revision as of 10:16, 19 September 2023

This lab has a Apollo x8 audio Interface which has multiple inputs and outputs. 

Inputs

  • On the front there are two HI-Z inputs inputs (labelled HI-Z 1 and HI-Z 2)
    • Theses are for low level signal like electric guitars.  Only use mono 1/4 cables.
  • There are 4 XLR mic inputs on the back of the interface.
    • There is a panel with 4 XLR jacks below the interface.
    • These are connected to the 4 mic inputs.
    • Microphones can be connected to these inputs using XLR cables (not included in the room).
    • Each input has:
      • Trim control knob for setting input levels
      • Pad for reducing input levels
      • 48V Phantom Power for powering condenser microphones
      • Low cut filter.
  • There are eight 1/4" line level inputs on the back.
    • Theses are not connected to anything  

Outputs

  • Outputs 1 and 2 are connected to the Mackie Big Knob monitor controller.
  • The other outputs are not being used.

Labeling

  • The various audio applications may refer to the inputs and outputs with slightly different names.
  • We have tried to set the preferences to meaningful names but sometimes they may revert back to the default names.  
  • Read the Apollo x8 Interface article for additional information