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Amplitude of Audio

Amplitude

Amplitude is the measurement of the displaced air (pressure), and in terms of audio this is perceived as loudness. Amplitude is actually the energy of sound or intensity/power.

The level or intensity of an audio signal (i.e. the loudness) is measured in decibels (dB) using the dB scale. ‘Deci’ being a tenth and ‘Bel’ being the unit.

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