Acoustics A-Z

The science of Sound. Its production, transmission and effects. The branch of physics that treats the phenomena and laws of sounds as it affects people. 

• ACOUSTICS

• LIGHTING

• ARCOUSTIC

• ECHOSTIC

The acoustical characteristics of a space or room influenced by the amount of acoustical absorption, or lack of it in the space. 

• ACOUSTICAL ENVIRONMENT 

• ACOUSTICAL SURROUNDING

• ACOUSTICAL SPACE

• ARCHITECTURAL ACOUSTICS

Noise that arrives at a point of interest by propagation through the air. 

• AIRBORNE NOISE

• AIRBORNE SOUND

Sound that reaches the point of interest by propagation through air. 

• AIRBORNE SOUND

• AIRBORNE NOISE

Deals with sound in rooms and building to make them quiet – or to provide improved conditions for listening and understanding speech or music.

• ARCHITECTURAL ACOUSTICS

• BIOACOUSTICS

• MEDICAL ACOUSTICS

• MUSICAL ACOUSTICS

The properties of a material composition to convert sound energy into heat thereby reducing the amount of energy that can be reflected. 

• ABSORPTION

• REFLECTION

• REFRACTION

• DIFFUSION

The reduction of sound energy as a function of distance travelled.

• ATTENUATION

• REFRACTION

• REFLECTION

• ABSORPTION

Noise level in a space from all sources such as HVAC or extraneous sounds from outside the space. Masking sound or low-level background music can contribute to ambient level of sound or noise. 

• AMBIENT NOISE/SOUND

• DIRECT NOISE/SOUND

The sum total of all noise generated from all direct and reflected sound sources in a space that can represent an interface to good listening and speech intelligibility.

• BACKGROUND NOISE 

• NOISE

A free hanging acoustical sound absorbing unit. Normally suspended vertically in a variety of patterns to introduce absorption into a space to reduce reverberation and noise levels.