Sundar_Prasad@mtsg.ubc.ca (Sundar) (08/21/90)
I read in the April 1990 issue of 'Macintosh Aided Design' that the new 8.24 (Picasso) and the accelerated 8.24GC (Monet) video cards from Apple support interlaced video output to TVs and VCRs. My local Mac dealer seems to know nothing about this. Can anybody confirm/squash this information ? Sundar_Prasad@mtsg.ubc.ca <Internet> userffa3@ubcmtsg <Bitnet> Civil Engineering UBC, Vancouver V6T 1W5 CANADA
dmwr@GNU.AI.MIT.EDU (Mutha Funkenstein) (08/21/90)
In article <9211@ubc-cs.UUCP> Sundar_Prasad@mtsg.ubc.ca (Sundar) writes: >I read in the April 1990 issue of 'Macintosh Aided Design' that the new >8.24 (Picasso) and the accelerated 8.24GC (Monet) video cards from Apple >support interlaced video output to TVs and VCRs. My local Mac dealer seems >to know nothing about this. Can anybody confirm/squash this information ? > >Sundar_Prasad@mtsg.ubc.ca <Internet> >userffa3@ubcmtsg <Bitnet> >Civil Engineering >UBC, Vancouver V6T 1W5 >CANADA As far as I know, they do not directly support interlaced video output. But, a company called Computer Video based in Massachusetts sells a box for $395 (I think) that will take the output of the board and convert it to NTSC. The quality, which I have seen first hand, is incredible. With the 8.24 card it was good enough to use a TV as your mac monitor. Not a bit of flicker (even on the window drag regions). Damian /----------------------------------------------------------------/ / Damian Roskill / Specular International, Inc. / / dmwr@gnu.ai.mit.edu / Makers of Infini-D / / my opinions are my own.... / "Party for your right to fight" / /----------------------------------------------------------------/
jeff@sgi.com (Jeff Mock) (08/21/90)
>In article <9211@ubc-cs.UUCP> Sundar_Prasad@mtsg.ubc.ca (Sundar) writes: >>I read in the April 1990 issue of 'Macintosh Aided Design' that the new >>8.24 (Picasso) and the accelerated 8.24GC (Monet) video cards from Apple >>support interlaced video output to TVs and VCRs. My local Mac dealer seems >>to know nothing about this. Can anybody confirm/squash this information ? >> >>Sundar_Prasad@mtsg.ubc.ca <Internet> >>userffa3@ubcmtsg <Bitnet> >>Civil Engineering >>UBC, Vancouver V6T 1W5 >>CANADA > >As far as I know, they do not directly support interlaced video >output... I can't speak for the 8.24, but the 8.24GC does support NTSC/PAL. In fact, Apple uses a customized version of a Brooktree RAMDAC that does some simple filtering of adjacent scanlines to make things like 1-pixel horizontal lines look better on interlaced monitors. It's quite a piece of work. I don't believe the GC card encodes RGB into a composite NTSC signal, but it does generate good interlaced timing. I can't remember if it will genlock. jeff mock jeff@sgi.com