500Hz
500Hz is a frequency that represents a cycle occurring 500 times per second. As a unit of reciprocal time, the hertz (Hz) is the standard measurement used in physics, engineering, and audio technology to quantify frequency. A 500Hz signal lies within the audible range for most humans, roughly corresponding to the pitch of the musical note middle C# in the key of C (approximately 554Hz for a standard tuning), and is often used as a reference tone in audio equipment calibration.
In audio engineering, a 500Hz tone is frequently employed in equalization tests and compressor attack and release
Biological and medical applications also use 500Hz signals. In auditory evoked potential testing, a 500Hz click
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