Revision Date: 3/13/2019
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Optoacoustics Headphone and Microphone Setup
Positioning the Participant
1. You may use the Opto headphones with or without earplugs
2. Position the headphones on the participant and be sure to use pads or paper towels to take
up the extra space between the headphones and coil (this is especially important if you
are using the active noise cancellation feature)
3. Position the microphone if applicable - be sure it is almost touching the participant’s lips
Setting up the Opto Console
1. AFTER moving the participant into the bore, turn on the Opto control box
using the black switch on the back right side of the console
2. Touch the screen to continue
3. If you are playing audio (movie, music or an audio task) connect the audio
cable to either the green connection inside the white drawer for the desktop
computer or to a laptop port – the other end of this should be connected at the
back of the Opto console in “line 1”
4. The line 1 (#5) knob controls the volume of this audio
5. The left button (#4 FORMI NOISE CANCELLER) on the Opto console should always
be pressed down “On”
6. The right button (#3) should always be up (in the FORMI position) when talking to the
participant - otherwise feedback will be generated
7. During the movie or task you can press the right button down (#3 headphones position) to
hear what the participant is hearing – just don’t forget to put it back up before talking to
the participant
8. To talk to the participant press the bottom silver button (#2)
9. Use the Siemens talk box to listen to your participant’s responses
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