This document provides instructions for setting up audio and visual equipment for a presentation. It includes steps to check microphones and speakers, connect a computer to external speakers via a mixer, troubleshoot any issues, set up a Google Hangouts call for remote participants, and display the presentation on a projector screen. The process takes 20-30 minutes and involves testing equipment functionality at each stage.

1. Audio set-up
Start 20-30 minutes before presentation

2. Microphone check
• Turn on the two receivers and the mixer.
• Grab one microphone and turn it on. This will be
used to check the speakers.
• Batteries are in the drawer if you need them.

3. Speakers check
• Adjust the volume control on the projector panel
(white box on the wall)
• With your finger, tap lightly on the microphone to
make sure you are getting sound – this check
ensures the speakers are not muted, and that the
microphone is working
• If you encounter a problem, check all the cables

4. Computer sound check
• Ensure USB cable is well connected to mixer
• FYI – USB cable has a tendency to disconnect on
the mixer end during a presentation
• Connect USB cable to iMac and get any sound
working (tip: load up sally video on youtube)
• Is the sound going through the wall speakers?

5. Computer —> Wall speakers
check
• Load System Preferences —> Sound; ensure input
and output is the USB mixer (tip: if you see the
sound button on the menu bar, you can press the
alt-option key and click it)

6. Troubleshooting
Computer —> Wall speakers
• If the computer isn’t playing sound through the wall
speakers, it is easiest to diagnose the problem now
before the hangouts are set up.
• Check all the cables. Most likely culprit is the USB
cable. Unplug and replug.
• Other solutions: Quit all open applications. Power
off the mixer. Power it back on. Log out without the
check mark to re-open windows on login. Log in.
Check to see if problem goes away at each step.

7. Hangouts check
• Load hangouts on the iMac. Muting yourself means
muting the microphones.
• Ask someone to go on the hangouts to help you test
the sound
• Ask if they can hear you
• Ask them to say something and make sure the
sound is still going through the wall speakers

8. Video set-up
The sound is now set-up. Congratulations! Let’s set up
the hangouts screen share now

9. Hangouts screen share
• Find out who is presenting. Ideally, do this before
the presentation.
• Ask if they need to put their screen on the wall
• If they don’t, use the iMac to project the hangouts
on the screen: this will work as a backup if audio
cuts out.
• If they do, remember to have them join the
hangouts for remote students to see their screen.

10. Projector
• Find out what cable you need; connect the
projecting computer to the panel, with the cable
• Turn the projector on (Green Button on the Panel)
• Make sure you are using the appropriate video
source

11. The End.