PSY/CS330 Human Factors
5/1/00
Day 1-
22
Effects of Multiple Tones
u
Beats
l
Perception of intensity changes from two nearby
frequencies
l
From constructive and destructive interference
l
Frequency of beating is difference in frequency
between the two tones, e.g. 101-100 = 1 Hz beats
To demonstrate Beats use DEMO #32
to demonstrate the missing fundamental use Demos 20 22 23.