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.   
  
 
== Inputs ==
 
== Inputs ==
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* There are two XLR/1/4" mic/instrument inputs on the front.
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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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** Microphones can be connected to theses inputs with XLR cables.
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** Theses are for low level signal like electric guitars.  Only use mono 1/4 cables.
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** Guitars can be connected with 1/4" cables.
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* 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.
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** 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:
 
** Each input has:
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*** Trim control knob for setting levels
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*** Trim control knob for setting input levels
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*** Pad for reducing inout levels
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*** Pad for reducing input levels
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* There are eight 1/4" line level inputs on the back.  
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*** 48V Phantom Power for powering condenser microphones
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** Inputs 1 and 2 are connected to the patchbay.
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*** Low cut filter.
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** The main outputs of the mixer are connected directly to inputs 3 and 4.  
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* There are eight 1/4" line level inputs on the back.
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** The other inputs are not being used.
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** Theses are not connected to anything  
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** Do not connect or disconnect cables on the back.
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== Outputs ==
 
== Outputs ==
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* There are two XLR Main outputs on the back.
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* Outputs 1 and 2 are connected to the '''Mackie Big Knob''' monitor controller.
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** Theses are connected directly to the '''Mackie Big Knob''' '''volume box input A'''.
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* The other outputs are not being used.
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* There are eight 1/4" line level outputs on the back.
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** Outputs 1 and 2 are connected to the patchbay.  
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** The other outputs are not being used.
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** Do not connect or disconnect cables on the back.
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== Labeling ==
 
== Labeling ==
 
* The various audio applications may refer to the inputs and outputs with slightly different names.
 
* 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.  
 
* We have tried to set the preferences to meaningful names but sometimes they may revert back to the default names.  
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* Read the [[Apollo x8 Interface]] article for additional information  
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=== Inputs ===
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* Mic/Instrument inputs come before the line inputs.
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* This makes the numbering of the analog inputs confusing.
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** For example analog input 1 is input 3.
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{| class="wikitable"
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|MOTU Inputs
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|Software Label
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|-
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|Mic/Instrument 1
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|Input 1
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|-
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|Mic/Instrument 2
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|Input 2
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|-
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|Line 1
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|Input 3
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|-
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|Line 2
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|Input 4
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|-
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|Line 3
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|Input 5
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|-
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|Line 4
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|Input 6
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|}
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=== Outputs ===
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* The Main outputs inputs come before the line outputs.
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* This makes the numbering of the analog outputs confusing. 
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**For example analog output 1 is output 3.
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{| class="wikitable"
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|MOTU Outputs
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|Software Label
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|-
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|Main Out 1
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|Output 1
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|-
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|Main Out 2
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|Output 2
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|-
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|Line 1
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|Output 3
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|-
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|Line 2
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|Output 4
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|}
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[[Category:Audio Mixing Benches]]
 
[[Category:Audio Mixing Benches]]

Latest revision as of 09:16, 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  
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