In Class Review

Question 1

define binaural fusion

Answer 1

separate signals from each ear are perceived as one

Question 1

What is the high frequency binaural sound source localization cue?

Answer 1

ILD

Question 2

If the signal is 60 dB SPL and noise is 50 dB SPL, what is the SNR?

Answer 2

10 dB SNR

Question 3

If the signal is 40 dB and noise is 46 what is SNR?

Answer 3

-6 dB SNR

Question 4

Binaural squelch provides 3-5 dB adv in noise over monaural hearing. What does binaural squelch refer to?

Answer 4

using both ears to hear in noise

Question 5

You present a 40 dB SPL signal at 1000 Hz with a starting phase of 0 degrees to the right ear and a 41 dB SPL signal at 1000 Hz with a starting phase of 0 degrees to the left ear. Is this presentation diotic or dichotic?

Answer 5

dichotic

Question 6

Forced vibration or free vibration? The windows rattle as a car playing loud music drives by.

Answer 6

forced vibration (mass and elasticity properties of window cause it to vibrate (low frequency)

Question 7

What would be an example of free vibration?

Answer 7

guitar string, tuning fork