SOCR Sound and Audio Illusions Survey

The purpose of this voluntary survey is to collect anonymous feedback from users regarding their experience listening to the specific audio sounds and auditory illusions. Before you begin, please make sure you have speakers or headphones with stereo capabilities to listen to the sound samples. This survey has 2 short parts and is UCLA IRB approved (IRB#11-002726). The first part collects some anonymous demographic data and the second part includes specific sound illusions and auditory stimuli. Thank you for your feedback and time!

Demographic Data

The first part of the survey collects anonymously some demographic data.

1. Gender: Please identify your gender

2. Age (years): Please select your age (you must be over 18)

3. Race: Please choose the race you most identify with.

4. Level of Education: Enter your highest level of education.

5. Have you had any formal music education? If so, for how many years for each type?

	None	1 Year or Less	2	3	4 or more Years
Vocal Training
Instrumental Training

6. Handedness: Are you Left-hand dominant, Right-handed dominant or neither?

7. Prior Hearing Tests? Have you had a hearing test within the last two years, and if so what was the result of this test?

8. Do you have Dizziness, Pain, or Ringing in your Ears? How often do you experience this?

Audio Survey

Please listen carefully to the following sound bytes and auditory illusions. Respond to the 8 questions that follow.

1. Scale Illusion: What tone do you hear?

2. Shepard's Ascending Tones: Are the chords advancing up the scale?

3. Falling Bells: How does the pitch of the bells change?

4. Quickening Beat: Does the drum beat speed up in tempo?

5. Tritone Paradox: For each pair of notes, do they:

6. McGurk Effect: Please do not play the clip until you read the instructions! The first time, play this clip with your Eyes Closed and enter sounds that you are hearing. Next, play the same clip with your Eyes Open and respond with the sound you hear being repeated!

	BA-BA	GA-GA	DA-DA
Eyes Closed!
Eyes Opened!

7. Phantom Words: Can you pick out a phrase from each of these 3 sound clips? If so, enter the words are you hearing - one line for each clip?

Clip 1:

Clip 2:

Clip 3:

8. 18,000 Hz Sine Wave: Can you hear this tone? (Not to be confused with the sound of static, this is a distinct, sharp sound. You may have to turn up your volume.)