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Listen to this video until the end, and when it stops, play it again to hear the difference. A Shepard tone, named after Roger Shepard, is a sound consisting of a superposition of sine waves separated by octaves. When played with the base pitch of the tone moving upward or downward, it is referred to as the Shepard scale. This creates the auditory illusion of a tone that continually ascends or descends in pitch, yet which ultimately seems to get no higher or lower.[1] It has been described as a "sonic barber's pole".
Posted 5 days ago by anri1 in category: science   Comments (3)


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Pineapple seller in Bankerohan market Davao City, Philippines.
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Watch photographer Lorenz Holder demonstrate some creative smartphone photography tips & tricks using an iPhone.
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Judged by a team of professionals.
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