VIDEO EDITING


We now use digital video from source to delivery.



We can control the digital video (DV) camera from the computer through a firewire connection (standard IEEE 1394 and i.LINK).

After editing we can store the film on the DV camera. The DV video can be copied as many time as you want without loosing resolution. We can also edit the video to produce a DVD interactive video. This can be burned to a 'CD' or placed on the net for downloading. (Of course it is also possible to produce an old fashioned VHS tape)

Communicatiuon between PC and Digital Video Camera with FireWire (43 Mbytes/sec) or USB (1.2 Mbytes/sec)

Video formats

There are many formats to choose between for digital video.
  • Formats.
    MPEG-2 (1994), (for DVD Video and High quality video) (1 hour to pack one minute) transfer speed 2 and 10 mbits/sec
  • MPEG -1 (1991), (can be unpacked by software as QuickTime) for CD rom, DVD rom low bandwidth compression with transfer speeds 1.5 - 4.5 megabits per second.
  • MPEG4, 4.8 kbits and 64 kbits per second.
What is DivX ?
DivX is based on the MPEG-4 compression format. MPEG-4 is a new standard of video compression that is both high quality and low bitrate. They are usually only a fraction (around 15%) of the size of a standard DVD, even at 640x480 resolutions, making them the best home video format thus far. They only take half the time to encode, and yet at the same time is smaller in size than MPEG-1 - due to their incredible compression technology - some have even called MPEG-4 the "MP3 of the video world". Quality ranges from net-streaming quality (from 'about')
To date in Asia VHS is replaced with DivX coded movies whic are stored on a single CD.

Further reading



©Per Christiansson, 20.3.2001 [20.3.2001]