Sound generation

The following movie is a canon for 6 voices, sliding through 6 octaves in parallel, being loud in the middle range and soft in the extremal ranges.

Listen carefully and describe the effect.

It is called Shephard's tone.

Download the AVI file or the Quicktime file.
(This movie is about 600 KB!)

We also have the sound only as Mpeg3 file.

If you like what you see, you also may want to go to Erich Neuwirth's Spreadsheets in Education Home Page.

Author: Erich Neuwirth
Last Change: 19991108