From: Andrew Beals (bandy_at_cinnamon.com)
Date: Thu May 16 2002 - 19:01:21 EDT
I've been fooling around with this some more, refusing to give up. I got some
great tips from vcdhelp.com and derived another myself.
The other hot tip from vcdhelp.com is to pick up a copy of [gnuware]
VirtualDub - seems to work quite well.
The big hot tip also from vcdhelp.com is that most capture cards, get this
are made for vid conferencing and hence, generate YUY2 as their native
output format. Any conversion before the AVI file is written just sucks
down more CPU.
And from the above point that they pointed out, I guessed and then verified
that the audio output is written by the chipset in a native format, with
conversion to something else sucking up CPU. A bit of experimentation
showed me that my card is u-Law.
The factor more critical than raw cpu is disk throughput. For what it's
worth, from my fooling around on w98, there's a not insignificant penalty
for writing to an extended partition - around 10% if I recall correctly.
I'm doing the capture straight to my D drive, even though it's an extended
partition in the on-board hdd as there's no space on C. The throughput on the
disk in my Dock III is dismal.
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