Shepard Scale

Name: Shepard Scale
Rating: 3.67 (24 reviews)
Author: Brant Thomsen

LiveBrant Thomsen2 apps · 13.4K installsEntertainmentFreecom.thomsensolutions.shepardscale

Plays a Shepard Scale, a series of notes that appears to ascend indefinitely.

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Total installs: 2,429
Installs / day: 0
Rating: 3.7★
Released: 22 Mar 2013
Last update: 8 Sept 2020
Countries: —

Installs per day

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11 Oct 2026No change in the counterOur first day-to-day reading of the counter. The line starts with the next one.

Daily tracking since 10 Oct 2026 · history grows every day

Install history

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1dAll

Dashed: estimate from the release date (no daily data before 10 Oct 2026) · time axis compressed before that day

Daily tracking since 10 Oct 2026 · history grows every day

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Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

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We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

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App manifest

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Full description

The Shepard Scale is a series of tones that appear to go up indefinitely. It is also sometimes called an "auditory illusion" or a "sonic barber’s pole". This application allows you to play a Shepard Scale so you can experience the effect for yourself. This effect was first described by Roger Shepard in 1964. Each "tone" in the scale actually spans several octaves, and the ear is fooled because it notices the increasing base frequency, but doesn’t notice that the lower octave harmonics are becoming louder. The same twelve tones are repeated over and over, but each tone sounds higher in context than the previous one did.

What's new

Updates to support newer Android versions

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