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Setting up the Iso Booth

Any words in this format are defined in the dictionary.

DICTIONARY

HA400 Microamp: This Microamp serves as a distribution system, allowing multiple users to listen in on a session.  It is powered with a 12V cable, make sure you have this plugged in!

Scarlett 2i2:. Audio interface for mic and instrument plugins.

XLR: Electrical connector used for professional audio.  Connector can have 3-7 pins.  Three is the industry standard, and each pin serves a different purpose.  One is for positive signal, the other for negative, and the third for a 'balanced' ground connection.

Mackie Mixer: 12-channel mixer that simultaneously controls levels of the desktop mic, and mics inside the booth.  It is also used as a talkback system between the audio engineer and booth occupant.

Whisper Booth

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The "SCiL booth" is an iso booth for professional recordings.  You can record alone or in conjunction with another person.  We will approach a recording session from a two-person perspective, helping to distinguish the roles between a Booth User and Audio Engineer.

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Setting Up

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Plugging in

  • Beneath the table and to the left is a wall pocket that connects outside.
  • Make sure XLR  or 1/4" cables are properly laid out, avoidant of footpaths to prevent tripping.

"What is the purpose of plugging into this wall?"

  • Plugs inserted into these wall pockets can be run outside from an outer wall pocket.  This benefits the audio engineer in various ways. (see image below)

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  • Cables that run outside all connect to the Mackie Mixer.  This connects your mic plugins to the computer, which is connected by USB-C.


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  •   Let's take a closer look at the interface...


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Refer to the equipment page if you are unfamiliar with this audio interface, or other equipment.

  • If the mic(s) and HA400 Microamp are hooked up to the inner wall pockets, they will run out the outer wall pockets and plug into this mixer.
  • XLR inputs go into the combo jacks, which are connected to your mics.

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  • Combo jacks can accept XLR jacks, as seen above, as well as 1/4" inputs. 
  • There are seven channel inputs on the mixer.  One will be for the outside mic, and two others for the mics inside the booth.

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^As the Audio Engineer (left) speaks into the XM8500, the booth user (right) can hear his voice using the Audio Technica headphones.  These are connected to the HA400.^

  • Before we get into recording, let's recap what you do to setup:
    • Mics inside booth are plugged in, that you want to use, using XLR cable(s).
    • HA400 is set up:  power supply unit, headphones, and the signal source 1/4" TRS connector (trip, ring, sleeve). Click here for a deeper breakdown.
    • XLR cables are plugged into outer wall pocket, and run into the mixers combo jacks.
    • Mixer is plugged into computer via USB-C and is turnt on (on/off switch in the back).


You are now ready to move into Recording A Session!  Use that page to push forward.






Works Cited


In, Sign. XLR vs. DMX | What Is the Difference? 4 June 2019, showmecables.com/blog/post/how-can-you-tell-the-difference-between-xlr-and-dmx.
engineer.ahsin. “Behringer HA400 Microamp User Guide - Manuals+.” Manuals+, 3 Dec. 2021, manuals.plus/behringer/ha400-microamp-manual#axzz7hbfcEqdt.