Pure Sine Wave 440Hz Ten Hours

$1.50

The 440Hz tone is A in the musical scale. This pure sine wave tone is good for tuning or keeping a reference to A.

Description

The 440Hz tone is A in the musical scale. This pure sine wave tone is good for tuning or keeping a reference to A. The Sine wave has no overtones so it is sometime called pure as it is only the fundamental frequency. Ten Hours 192kbps mp3 format

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