What is similar -- and what is different -- when you hear different instruments play the same melody?
The lowest frequency (and the longest wavelength) is known as the fundamental frequency. Remember,
The pitch of a sound is determined by this fundamental frequency, the lowest frequency that is present.
Changing the pitch usually means changing the length of a string or a pipe or a column of air.
You can explore these ideas of fundamental frequency and harmonic content in the Sound Module by clicking below.
| Sound Module |
(C) 2003, Doug Davis; all rights reserved