November 2007
Intermediate to advanced
736 pages
46h 32m
English
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VIDEO TAPE TRACK CONFIGURATION
The standard VHS track pattern is shown in Fig. 33.13. The tape advances at 2.34 cm/s to give tracks 49 microns wide. They are scanned from bottom to top of the tape. The upper edge is reserved for a conventional sound track 1 mm wide, which for stereo is split into two 0.35 mm tracks separated by a 0.3 mm guard band. The lower tape edge carries the control track, which provides a poisoning reference for the video tracks themselves, and is used to guide the head sweeps during replay.
Fig. 33.14 illustrates the Betamax track pattern. Tape width is 12.65 mm again, but video tracks are narrower at 33 microns with a corresponding lower linear tape speed of 1.87 cm/s. The larger Beta head drum of 74.5 cm diameter is ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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