Technical Glossary of Common Audiovisual Terms
 |
D9 Digital Video |
 |
Description
SMPTE standard for the Digital-S ½ inch video format developed by JVC.
Explanation
D9 or Digital-S uses a cassette with the same basic shape and exterior dimesions as S-VHS. Some Digital-S machines will play S-VHS tapes.
The ½ inch metal particle tape has a coercivity of around 1830 Oe, and runs at 57.8 mm/sec giving 104 minutes recording time with a tape thickness of 14.4 µm.
Video is sampled at 4:2:2 resolution and encoded at a 3.3:1 ratio with DCT-based intraframe bit-rate reduction at 50Mb/s.
Four channels of 16-bit PCM audio at 48kHz are provided.
An interface called DIF Stream has been developed for transfer of compressed or bit-rate-reduced data without decoding to baseband, and re-encoding.
Digital-S machine. JVC (1999)
Related Topics
D1
D2
D3
D5
Digital Betacam
DV
DVC
DVCAM
DVCPRO
To be sure of the best care of your audiovisual item you may wish to seek
specialist advice or email us at preservation@nfsa.gov.au.
|
Previous |
 Top |
 Main Index |
 D Index |
Next |
