November 2007
Intermediate to advanced
736 pages
46h 32m
English
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8 MM FORMAT
The 8 mm video format has been designed to meet the requirements of smaller size and lighter weight. The 8 mm video tape is only 8 mm wide as compared to the VHS video tape, which is only 12.6 mm wide. As a result the mechanism is much smaller. In the 8 mm video system, the tape runs at 14.3 mm per second and utilises a 40 mm drum with a 221° wrap.
The 8 mm format features an FM hi-fi audio recording system. The audio signal is recorded as an FM carrier. Although most 8 mm systems can only record mono audio, provisions have been made in the format to record stereo pulse code modulation (PCM) audio. As Table 33.2 shows, this gives 8 mm a far better performance than VHS-C (C for compact) with a 75 dB dynamic range and a low 0.05 per ...
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