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If human hearing upper limit is 20 kHz then how does a 15 kHz sine-wave sound so remarkably different from 15 kHz square-wave ?

Updated 19 June 2024 | Published 1 December 2023 by M

How does a 15 kHz sine-wave sound so remarkably different from 15 kHz square-wave

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All is inseparably connected via vibration. Per scripture, sound was the beginning: If “God is two octaves above man,” but ‘silence is golden,’ doesn’t that leave us somewhere between precious and divine? We should live up to that.