Audio Post Production Knowledge Base

Today's Audio Term: Metadata Metadata is used to...

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Quadrophonic Stereo
The term Quadrophonic, or Quadraphonic, either are correct, was coined in the early 1970s to describe a four-channel sound presentation used in the recording and broadcast industries. The speaker placement is frontLeft, frontRight, rearLeft and rearRight (fL,fR,rL,rR), with the listener sitting

Over-processed
An over-processed track suffers from what audio engineers might consider to be too much of a good thing. Any process designed to improve, repair, enhance, or otherwise advance the quality of an audio track can, if used in excess, have the reverse effect and start to diminish its overall quality.

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