One who practices sound engineering.

(journalism, television) An extract from a speech or interview used as edited into a news or other broadcast; an interview clip, especially seen as particularly expressive or pithy.

Merseybeat.

Merseybeat.

(uncountable) Sonic barrier, the sudden increase in drag (resistance) and other effects experienced by moving objects when their speed approaches that of sound or becomes supersonic (which used to be considered a barrier to higher speeds).

(idiomatic) Sleeping still and silently.

(film, television) A soundproof room or building used for the production of movies or of television programmes.

(physics) The longitudinal wave of pressure that is transmitted through any plastic material; audible sound.

(physics) A wave of fluctuating temperature or entropy propagated in the superfluid phase of liquid helium

A thin board that forms part of the resonating chamber of a musical instrument and serves to reinforce its sound / A structure that reflects sound towards the intended listeners