Õhuamplituudi

Õhuamplituud refers to the maximum displacement or distance moved by a particle of the medium from its equilibrium position when a sound wave passes through it. In simpler terms, it represents the intensity or loudness of a sound wave. A larger amplitude means the air particles are pushed and pulled further from their resting state, resulting in a louder sound. Conversely, a smaller amplitude indicates less displacement and a quieter sound.

The amplitude of a sound wave is closely related to its pressure variation. As the wave propagates, it creates regions of compression and rarefaction in the air. The amplitude is directly proportional to the difference between the maximum and minimum pressure in these regions and the equilibrium pressure. It is typically measured in units of pressure, such as pascals (Pa).

While amplitude is a fundamental characteristic of a sound wave, it is important to distinguish it from frequency, which determines the pitch of the sound. Amplitude is perceived by humans as loudness. Extremely high amplitudes can lead to the perception of very loud sounds, and in extreme cases, can cause damage to the hearing system. The relationship between amplitude and perceived loudness is logarithmic, meaning that a doubling of amplitude does not necessarily result in a doubling of perceived loudness.