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>> low-frequency waves naturally are lower energy Just to be clear here: are they really? Sound waves have an amplitude which also defines the amount of energy
by heavenlyblue 8y ago
>> low-frequency waves naturally are lower energy
Just to be clear here: are they really? Sound waves have an amplitude which also defines the amount of energy they contain.
- smoyer 8y agoYes ... a sinusoidal sound wave has an RMS amplitude based on the peak amplitude regardless of the frequency.
- robocat 8y agoSound waves also have a maximum amplitude (without distortion) because the minimum of the pressure wave can't be below atmospheric pressure. Although Wikipedia indicates that maximum is quite loud.
- xelxebar 8y agoFor a sine wave, the energy scales like E ∝α ω^2 where α is amplitude and ω is frequency. So lower frequencies need propotionally larger amplitudes to carry the same energy.