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# Acoustic

Top
 Sub Topics Acoustics is the study of pressure waves in the atmosphere. These pressure waves are nothing but the sound. So, simply we can say that acoustic is the study of sound. The scope extends to higher (ultrasound) and lower (infra sound) frequencies. Acoustics reveals the information regarding the structural vibrations. Some cases, acoustic is a part of fluid dynamics.

## Acoustic Definition

Acoustics is the scientific study of mechanical waves especially sound waves. The sound wave is a longitudinal wave. It is produced due to the vibrations of the medium.

## Acoustic Sounds

Acoustic sound is nothing but the sound which is present in the acoustic domain. It can be sound or noise. Noise is the unwanted sound, the study of noise which is in acoustic domain is known as the environmental noise.

## Acoustic Wave

$\frac{\partial^2 p}{\partial x^2}$-$\frac{1}{c^{2}}\frac{\partial^2 p}{\partial t^2}$