What's the best rendering speed per minutes of video?

clearvu wrote on 3/28/2003, 10:13 PM
I realise it all depends on the speed of the computer, however, I don't think I'm lacking in that department. I have a 3.06 G Pentium 4 with HyperThreading technology, with 1 meg of RAM.

I used to have a P4 1.7, with 512k of ram.

Although I do find a difference, it's not as great as I expected.

Currently I find that it takes an average of 1.75 minutes to render a 1 minute AVI file with some transitions.

Are there settings that I can do to help speed things up, or is it just that rendering is slow and live with it.


Brian

Comments

jboy wrote on 3/28/2003, 10:59 PM
That seems kind of slow, but you should try rendering an unmodified .avi out to an mpeg2 to get a baseline number. My current setup, (amd o'c to XP2700), is taking about 1.5 secs for each sec of this type of conversion. Anytime you add effects or transitions to one of these conversions your times can vary wildly and unpredictably. Try rendering out a short .avi file to an mpeg2, just for the hell of it. I know the P4 platform is supposed to be much faster, (like around 40%), so I'm kind of curious to see if the hyperthreading advantage carries over into the real world.
clearvu wrote on 3/29/2003, 3:19 PM
I'll do a test run of a one minute avi to mpeg2 with no audio and post the results as soon as possible.

It would be interesting to see what results others have in doing similar as well as their system setup.

Brian
clearvu wrote on 3/29/2003, 3:26 PM
Here's the results.

System: P4 3.06 with hyperthreading. 1 meg of RAM. Lots of DISK space.

1 minute AVI to MPEG2 (no audio) - 50 seconds.
1 minute AVI to MPEG2 (with audio) - 51 seconds.

Brian
DigVid wrote on 3/30/2003, 9:31 AM
So, what kind of avi are you rerendering to MPEG2? Is it a DV avi, as different avis of different frames sizes, complexities, etc (of course) will give different results?

However, that being said I took a single image and rendered a V4 (NTSC DV) file and then rerendered the resulting file to V4's MPEG2 (DVD Architect NTSC video stream with sound) and on my Intel 850mhz PIII / 768mb RAM it took 3:11 to render...
jboy wrote on 3/30/2003, 1:35 PM
I was just using an .avi generated within Vegas. These results are about what I expected. Those hyperthreading 3.06 P4's are pretty good renderers. I'm so glad computers have become so much faster, cause a complicated render with multiple effects and transitions can take forever-10-20X time of clip. Every increase in chipspeed makes Vegas all the more attractive. Wonder how fast chips will have to become before even the rendering out of complicated clips approaches a real time one to one ratio ? Of course, faster than real time will be even better..
clearvu wrote on 3/30/2003, 2:40 PM
What I used was DV AVI captured from digital camcorder. Then rendered the file to MPEG2.