Frequency Plots
50% Fan Speed
The loudest frequency, 630 Hz, is the 630 Hz is the exponential center of the audible spectrum!
75% Fan Speed
The loudest frequency is 250 Hz, which belongs to the bass region.
100% Fan Speed
Increased noise at a low frequency, 125 Hz, with the case’s fans spinning at full speed. This frequency is the fundamental one for male voices!
Signal Recordings – 50/75/100% Fan Speed
I have recorded the signals shown above, but please keep in mind that I’ve enabled Automatic Gain Control (AGC) to do so to make it easier for you to reproduce them. The provided recordings are only offered for aural identification purposes.
50% Fan Speed
75% Fan Speed
100% Fan Speed
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