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Master File Too Big
Gentlemen,
I edited a project with a 1 hour long timeline.
The avi file that resulted was 237 gigs
My media encoder settings to make the file were;
codec = avi with no codec
960×720
PAR 1.0
29.97
lower field firstThe unusual frame size is to match the size of powerpoint slides that I had to incorporate. The finished product looks great, especially the slides.
Keeping the settings above,I want to save a file that is not as large but still will be “good enough” for a master.
The codec choice has to let me adjust the frame size to 960×720
I experimented with .mov codecs without much luck.
I also tried panasonic dv avi but that wouldn’t render.
Any suggestions would be appreciated.Kevin Ryan
Editor/Graphics
The Government Channel
City of Charlotte
Charlotte, NC -
4 Replies
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PPT is a pain when it comes to file encoding. I would use Windows Media at 4 Mb/s for starters if this isn’t a very dynamic video.
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
Vince,
We usually save our masters as dv avi 25. I would prefer this but I could not set the frame to 920×720 in media encoder.
I made a version of the file with the settings you suggested.
I have never used a wmv as a master, but it looks fine. The slides look really good. The video is just speakers at a podium. And 1.5 gig is a lot more palatable than 227 gigs.Let me make sure that I am clear on one point. You are suggesting that this wmv file would be sufficient for a master file. I never really thought of that.
Kevin Ryan
Editor/Graphics
The Government Channel
City of Charlotte
Charlotte, NC -
[Kevin Ryan] “Let me make sure that I am clear on one point. You are suggesting that this wmv file would be sufficient for a master file. I never really thought of that.”
Hi Kevin,
I’m not sure what you mean by master file. If you mean the final file you are giving to the client, then yes, WMV will work. It is much more efficient than DV on the compression side as well.
I hope future versions of PPT will support H.264 since this is ultimately the best codec around at this time.
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
Part of the issue is the resolution you chose isn’t the resolution of any video format save the stored DVCProHD codec, which isn’t square pixel (PAR 1.0) and isn’t interlaced (no fields).
No clip ultimately bound for computer play back should have “fields” as computers don’t do interlaced…you should always export as progressive.
Also, if you want to use 720×480 DV next time, the Power Point presentation would need to be exported (as slides or however you did it) as 640×480…or 720×540 square pixel so you can work with it.
However, WMV files are still better than DV for playout from PPT as Vince said. Power Point is pretty clutsy as a video viewing application and the smaller the data rate, the better.
TimK,
Director, Consultant
Kolb Productions,
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