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A control track is a track that runs along an outside edge of a standard analog videotape (including VHS). The control track encodes a series of pulses, each pulse corresponding to the beginning of each frame. This allows the video tape player to synchronize its scan speed and tape speed to the speed of the recording.
In the case of VHS, a linear control track at the tape's lower edge holds pulses that mark the beginning of every frame of video; these are used to fine-tune the tape speed during playback and to get the rotating heads exactly on their helical tracks rather than having them end up somewhere between two adjacent tracks. However, the exact ...
Control Track Pulse: Most are familiar with the digital "counters" on VHS recorders and camcorders, viewed via the onscreen display (OSD) and/or a dedicated LED display. These numbers are sometimes in real-time format (hours:minutes:seconds), but are often only an ambiguous 4 digit sequential counter. These numbers advance up or down based on ...
Sound cannot be recorded on a VHS tape without recording a video signal because the video signal is used to generate the control track pulses which effectively regulate the tape speed on playback. Even in the audio dubbing mode, a valid video recording (control track signal) must be present on the tape for audio to be correctly recorded.
Skip forward (to the end or next file/track/chapter) U+23ED ⏭ #5861 Next; to play next part, #1116 Movement with normal speed in direction of arrow to a fixed position: To identify the control or the indicator to play the next part and then stop. Record: U+23FA ⏺ #5547 Recording, general: To identify a control to preset or start a recording ...
One analog control track (240 Hz) 20 mils [bottom of videotape] Two analog audio tracks: 2 audio tracks or one audio and one cue tone track or one audio track and one linear timecode track; Analog audio track 70 mils [top of videotape] Analog audio cue track 20 mils; Video track angle 89.5 deg. Video track height/length ~ 1.82 inches, ~ 46.2mm
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The electromagnetic arrangement of a tape head is generally similar for all types, though the physical design varies considerably depending on the application - for example videocassette recorders (VCR) use rotating heads which implement a helical scan, whereas most audio recorders have fixed heads.