Using Videotape
Videotape recording facilities have transformed television production.
Principles
• Picture. All types of VCR/VTR use a helical scan method of recording the color picture. However, their technicalities vary, and the present 15 or so different formats are incompatible, and so will only handle tapes recorded on their own particular system.
• Audio, All systems record the sound simultaneously on the tape (in mono or stereo). Some have a soundtrack along the tape edge; others also use special ‘depth multiplex’ Hi-Fi audio tracks, recorded along with the video tracks.
Editing the videotape
When film is edited, sections are selected, cut out and spliced together into the required order. Videotape must not be cut. It would not only ...
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