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> On some LCD monitors this page will cause the screen to emit a tone that varies in pitch with the bar height. Maximize window for best results.

Looks like any noise is the by-product of the electronics within the device, rather than anything playing through the speakers. Coil whine (or something to that effect), I imagine.




Yes, it works on my monitor.


I wasn't aware that different screens necessarily produced the same sounds, but I noticed many years ago with CRTs that there was a faint sound that changed depending in a general way on what was displayed.




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