IPS Chapter 2
 

For each of the four periodic waveforms shown here, estimate the period and the frequency.  Each vertical grid division represents 5ms

Which of the sounds represented here would be perceived as having the highest pitch and which the lowest?

B has the highest pitch
D has the lowest pitch

 

These waveforms were produced with a very useful program called Oscilloscope for Windows 2.51 written by Konstantin Zeldovich. You can download the program here for free.

BACK

   

 

 

A

 

 

 

 

 

B

 

 

 

 

 

 

C

 

 

 

 

 

D


 Period ms

Frequency Hz

Period 11ms approx
Frequency 91Hz approx

Period ms

Frequency Hz

Period 4.5ms approx
Frequency 222Hz approx

Period ms

Frequency Hz

Period 8ms approx
Frequency 125Hz approx


Period ms

Frequency Hz

Period 14ms approx
Frequency 71Hz approx