Much like glitter, the Shepard tone seems infinite. A tone that appears to rise in pitch forever, the Shepard tone is actually a clever auditory illusion that takes advantage of the brain's inability to process sound with 100% accuracy. Quill and Duncan explain how the tone is made and why it works, give examples of its use, and demo some other auditory illusions.
This podcast features original dialogue and music (except the Risset Rhythm which is used under the Creative Commons license).
We hope you enjoy!
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