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  • Shepard-Risset GlissandoUser:Gloumouth1

Sonic barber pole. If you never heard an auditory illusion before, here is your chance. This particular tone is called a Shepard glissando, and to your brain it seems as if it constantly descends, while in fact, it is a looped sound.

This is the same as staring to a moving barber pole. Here is the spectrograph analysis to prove it.

  • vertical: frequency
  • horizontal: time
  • black intensity: amplitude (volume)

Source: Wikipedia

    • #music
    • #curiosities
    • #tricks
    • #illusions
    • #hypnosis
  • 1 year ago
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