Particle displacement
- Sound pressure
- SPL
- Sound velocity
- Schallauslenkung
- Sound acceleration
- Sound intensity
- Sound power
- Sound energy density
- Sound energy
- Sonic flow
- Acoustic impedance
- Speed of sound
At a vibration is generally referred to the instantaneous distance x of the point P ( at a curve or straight line) from its rest position as the displacement or elongation. The largest deflection or elongation is referred to as amplitude.
For example, the amplitude of the Schallauslenkung ξ (Greek Xi) a harmonic oscillation:
With: