amplitude amplitudethe maximum distance that a vibrating particle moves from its equilibrium; how much the medium is disturbed Related Articles: Glossary: shock waveGlossary: spectrumGlossary: automatic gain control (AGC)Amplitude and IntensityEarthquakeTutorial: Sound Levels at Distance and DepthHow is sound measured?Commercial Vessel TrafficSound SpreadingWhat are soundscapes? Derek Sutcliffe2017-02-26T20:09:57-05:00