Definitions for "Room tone"
Keywords:  silence, editor, noise, ambient, tone
The natural "noise" of a room, set or location where dialog is recorded for the production shoot. Used by film or dialog editors as a "bed" to form a continuous tone through a particular scene. Not to be confused with ambience, which can be sound effects and/or reverberation, added when the dialog is mixed.
The background noise in a room without people speaking or music playing.
Usually refers to the audio characteristic of the film set or location. Sound engineers will sometimes record the 'silence' of a space to capture its tone.