🚀 go-pugleaf

In article <815781099snz@longley.demon.co.uk>
           David@longley.demon.co.uk "David Longley" writes:

> I appreciate the advice (and will follow it up tomorrow - do you also have
> a number for Miro?) but I'd also be interested in a technical discussion
> of these issues. For example, the Miro DC1TV does 320 x 240 as half PAL
> (why)? If you use full colour, at 25 fps, that gives:
> 
>   320 x 240 x 15 x 24    =  27,648,000 bits per second
>           or             =  3,456,000 bytes per second
> 
> Now that's a lot more than the speed which the data is going to disk,
> which is less than 1MB a second.
> 
> Can a DS 64 2MB VRAM put that sort of data to a monitor at that speed?
> Will a pentium 120 MHz be fast enough? Etc etc. What I would very much
> like is some computational discussion..
> -- 
> David Longley
> 
I've not used the card mentioned but judging by the ad, the card does
mjpeg compression.  If this is hardware, then processor will not
make to much difference, I have capture systems based on a 486dx2-66
but with a Card that has a hardware compression.  If the card does the
compression with software, then the processor can make a big difference.

Of course you might also wish to switch to SCSI as the faster drives 
generally come out in this format (ie all 7200 rpm drives), plus you
can get drives bigger than 2 gig.

As the question of the video card, this depends on format of the
video file. Again if your video card has hardware acceleration
for the standard being used (and DS 64 Video VRAM does NOT support
mpeg in hardware) your processor may be the limiting factor.  If
there is an option to switch of the capture windows when actually
recording, try it.

Finally get a copy of the November issue of PC Pro as they a multi-page
feature on video editing.

--
Rajesh Varia     raj@c4rv.demon.co.uk