Encyclopedia > Linear timecode

  Article Content

Linear timecode

Linear (LONGITUDAL) Timecode (LTC) encodes SMPTE timecode data as a Manchester-encoded audio signal. Each frame is terminated by a 'sync word' which has a special predefined sync relationship with any video or film content.

A special bit in the linear timecode frame, the 'biphase mark correction' bit, ensures that there are an even number of AC transitions in each timecode frame.

The sound of linear timecode is a jarring and distinctive noise and has been used as a sound-effects shorthand to imply 'telemetry' or 'computers'.

Care has to be taken with analog audio to avoid audible 'breakthrough' from the LTC track to the audio tracks.

See also:

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
Amanda Bynes

... 1986) is an actress and show host at the Nickelodeon tv channel. She was a participant of the All That show, and later she became the star of The Amanda Show[?]. She has ...