D-9 (video format)
D-9, originally called Digital-S , is a professional digital video tape format from JVC , which was introduced in 1995 . It was a direct competitor of Digital Betacam and was distributed in Europe and Asia, as well as in the USA , mainly through the Fox News Channel .
technology
D-9 uses the VHS form factor, but the tape material used is of much higher quality. DV compression is used for the recording with a bit rate of 50 Mbit / s. The video is recorded in 4: 2: 2 component format and has an aspect ratio of 4: 3 or 16: 9. Audio is recorded with 16 bit, 48 kHz modulation width and PCM on up to 4 separate tracks.
Further information
Although D-9 uses the same codec as MiniDV , the video bit rate of D-9 is significantly higher than that of the " prosumer " format. Some of the D-9 studio devices are able to play back the recording faster and subject it to error correction . The output signal is usually available at an SDI interface. There was only one dockable recorder for use with mobile cameras , this is the JVC BR-D40. With adapters he was u. a. Can also be docked to camera heads from Sony, Ikegami or Hitachi, only the JVC camcorders DY-90 / 90W, DY-70 and DY-700 were developed directly for the D-9 format.
Individual evidence
- ^ D-9 FROM JVC - The Future Starts Here. JVC, 2000, accessed May 20, 2018 .
- ↑ Technical Overview white paper. JVC, 1999, accessed May 20, 2018 .