http://demonstrations.wolfram.com/BeatFrequencyOfSoundWaves/
The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.
Adjust the sliders to explore the relationship between the difference in frequencies of the two component waveforms (shown dashed) and the resulting beat frequency seen in the upper plot. The red region in the upper plot is projected in the lower plot: ...
Contributed by: Christopher Engberg
After work by: Jon McLoone
rad music
doogles619 4 weeks ago