VDA - Sound (Part 2)

The branch of physics that deals with the production, control, transmission, reception, and effects of sound

Sound radiated directly into and transmitted through the air

Impervious to audible sound

The intensification and prolongation of sound produced by sympathetic vibration

A vibration induced in one body by the vibrations of exactly the same period in a neighboring body

Airborne sound traveling directly from a source to the listener

A decrease in energy or pressure per unit area of a sound wave, occurring as the distance from the source increases as a result of absorption, scattering, or spreading in three dimensions

The time in seconds required for a sound made in an enclosed space to diminish by 60 decibels

The persistence of a sound within an enclosed space, caused by multiple reflections of the sound after its source has stopped

The rate of decrease of sound pressure level after its source has stopped, usually expressed in decibels per second