Description
Pure sine wave at 5000Hz (or 5kHz) for ten hours. The Sine wave has no overtones so it is sometime called pure as it is only the fundamental frequency. 192kbps mp3 format
$3.00
Pure sine wave at 5000Hz for ten hours. The Sine wave has no overtones so it is sometime called pure as it is only the fundamental frequency.
Pure sine wave at 5000Hz (or 5kHz) for ten hours. The Sine wave has no overtones so it is sometime called pure as it is only the fundamental frequency. 192kbps mp3 format
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