Revisited: Rendering to another generation

Mike M. wrote on 7/9/2015, 10:37 PM

Original Post: http://www.sonycreativesoftware.com/forums/showmessage.asp?forumid=4&messageid=927654

To the group:

I now have a slightly different situation that I'd love some thoughts on.

Starting with some rather poor quality progressive MP4's (AVC/aac), I need to use Vegas to do some color correcting and noise reduction, and then render them.

Eventually, I'll use these "new" rendered files for another project where I edit them together for an authored compliant NTSC DVD.

Ideally, I'd like the new individual files (intermediate if you wish) to not be large... as in DV or AVI's.

Again, I realize this crappy situation isn't the best, but I have to make do.

What would be the best workflow and format ?

Thanks again.

Mike

Comments

Former user wrote on 7/9/2015, 10:42 PM

Is there a reason you want to avoid large, uncompressed files? They render much faster, you can delete them when you are done and since they render so much faster, it you need to recreate them, you can easily do that.

You can try some of the lossless codecs such as Lagarith. These offer smaller files than uncompressed, but you do sacrifice some rendering time and performance on the timeline (in some cases)

Mike M. wrote on 7/9/2015, 11:02 PM

Yes DonaldT that would be the sensible way to go.......even using the Avid codecs would be an option.

The main reason is that I also would like the codec/format to be easily playable on a computer and smaller file sizes.

To my (limited knowledge) that narrows it to: either converting the original progressive MP4's to interlaced MPEG2 or leave them as MP4's (either way with the idea that they will eventually be rendered for DVD use).

Mike

Chienworks wrote on 7/10/2015, 5:38 AM

I'm always in favor of holding on to the originals and working with them whenever possible. I know that means you'll be applying the corrections to them in the eventual DVD project and losing the time savings, but then again, that's what overnight rendering is all about.

musicvid10 wrote on 7/10/2015, 7:10 AM

I would suggest rendering them to DVDA-compliant mpeg-2 video with audio and .mpg extension.
Save a separate copy of the audio as ac3 so you can avoid recompression when you author in Architect later on.

No intermediate, no recompression later on, playable, and reasonable storage size.
It will be bigger than your .mp4, but much smaller than the intermediate formats you are considering.

Red Prince wrote on 7/10/2015, 8:33 AM

You could avoid rendering any intermediates altogether. Just keep the originals and import the respective veggies to any future project. In other words, nested veggies.

Not to mention that veggies are good for your health. ;)

Adam