Audio Beat Frequencies

The initial waves are 2 Hz apart .. enough to hear a slow "beat" of the sound output {click off the MUTE button}. Change the second frequency so it is closer or farther from 400 Hz, and then click the NEW button {to update the applet}. (The red sliders in the top graph can be adjusted to zoom in/out.)

This SoundOut Applet requires Java 1.1 and a sound card.
Note: BEFORE YOU LEAVE THIS APPLET - make sure you check the MUTE button again - otherwise your speaker will continue with the tone after you leave this page!

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