Audio Post Production Knowledge Base

Today's Audio Term: Tension Tension refers to the...

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Noise Floor
The inherent noise of a recording medium, a noise floor typically sounds like hiss and differs with the makeup of different types and qualities of tape and film. For example, a consumer grade cassette tape has a higher noise floor than a professional 1/4” tape, and a high quality digital

Trigger Tone
A trigger tone is a 12kHz sine wave that was used to "trigger," or turn on, the surround channel of a discrete LCRS (Left channel, Center channel, Right channel, Surround channel) Cinemascope™ print. Early LCRS surround mixes for Cinemascope films contained very little surround

Foley
Foley is a process of adding organic sound effects to film and television soundtracks by performing them in sync with picture. Invented by Jack Foley, a sound editor at Universal Studios, its main purpose is to replace or enhance production sounds that have been obstructed by noise or are not