home *** CD-ROM | disk | FTP | other *** search
- Path: newshub.cts.com!outside!not-for-mail
- From: dan@cts.com (David A. Newman)
- Newsgroups: comp.sys.amiga.graphics
- Subject: Re: VLAB Motion
- Date: 3 Jan 1996 22:27:29 GMT
- Organization: CTS Network Services
- Message-ID: <4cevsh$hvv@news2.cts.com>
- References: <820240220.6846@speedy.cursci.co.uk> <30e6a844@iig.com.au> <3082.6576T34T2221@metrolink.net>
- NNTP-Posting-Host: outside.cts.com
- X-Newsreader: TIN [AMIGA 1.3 950726BETA PL0]
-
- Hal Greenlee (Greenl@metrolink.net) wrote:
-
- : Macrosystem claims that the present VLM works better in a Draco, and
- : that the special Draco VLM version will do 5-7 MB/s rates, allowing
- : quite low compression. Great, that may solve the lockup vs. bandwidth
- : problems. But that's not the only problem VLab has. Their 4:2:2 digitized
- : signal isn't all that good looking, even before JPEG compression. For the
- : money a Draco costs, I could get a Flyer, and get away from 4:2:2 digital.
- : Both the Flyer and the Perception have better looking video.
-
- There is nothing inherently wrong with 4:2:2 digital video. It is
- part of the CCIR standard for both PAL and NTSC broadcast systems.
- D1 video is 4:2:2, which as at the top end of video formats.
-
- The Flyer is not to CCIR spec, it's NTSC only, and it's composite
- video (colour reproduction problems).
-
- The Preception board IS 4:2:2 digital video, and I beleive uses the
- same JPEG engine (LSI) as an often forgotten Amiga product, the
- Broadcaster Elite. Good 4:2:2 digital video is excellent. If VLABs
- picture is poor, it is the fault of the implementation not the
- standard.
-
- --
- David Newman
- dan@cts.com
- Applied Magic Inc
- Broadcaster Elite Home Page: ftp://ftp.cts.com/pub/dan/index.html
-