Exporting HD MPEG with Audio as 1 file??

	Re: Exporting HD MPEG with Audio as 1 file?? by Dave LaRonde on Sep 12, 2008 at 1:23:47 pm You've got a few things goin' on here that aren't working to your advantage: [Will Gaffney] "I imported the original HDV files into After Effects CS3, and applied all the required filters etc. " HDV is NOT a good choice for use in AE. Using HDV is a common problem, especially since the Adobe propaganda says you can do it. It's such a common problem that I wrote a canned response: Dave's Stock Answer #1: If the footage you imported into AE is any kind of the following -- Native HDV, MPEG1, MPEG2, mp4, m2t, H.261 or H.264 -- you need to convert it to a different codec. These kinds of footage use temporal, or interframe compression. They have keyframes at regular intervals, containing complete frame information. However, the frames in between do NOT have complete information. Interframe codecs toss out duplicated information. In order to maintain peak rendering efficiency, AE needs complete information for each and every frame. But because these kinds of footage contain only partial information, AE freaks out, resulting in a wide variety of problems. -------------------------------------------------- [Will Gaffney] "....Now I want to export the footage as a HD Mpeg (because the quality is good but the size is smaller than MOV or AVI)...." Despite the large file sizes, it's pretty much always a good idea to render (and not export -- they're two different terms in AE) the best-quality file you can, and let some other application convert it to a different codec. Since you unwittingly started in MPEG, I suppose you could also render in MPEG, if maintaining the best quality possible isn't a big concern. BUT... there's one final thing: [Will Gaffney] "...the AE export is an MPEG video file with WAV Audio as a seperate file. This means when I try click "Link Media" in PPro the files cant be replaced because they don't match...." You're going to need to find an application that can Multiplex, aka MUX, the audio with the video. I'm a Mac guy, so I'm not really familiar with the utilities that can do this. Usually, such utilities also can also do the conversion from high-quality files to mpeg while muxing, and they may even do a cleaner job of it than AE. Dave LaRonde Sr. Promotion Producer KCRG-TV (ABC) Cedar Rapids, IA Respond to this post   •   Return to posts index

	Re: Exporting HD MPEG with Audio as 1 file?? by Dave LaRonde on Sep 12, 2008 at 2:12:33 pm [Will Gaffney] "...I could import the video files as a different format if I convert them first and then export again. Do you have any suggestions? " I'm a Mac guy, so take my advice for what it's worth. If you want to keep your captured video as is in Premiere, I'd export to AE using Quicktime's Animation codec set to best quality: it's lossless. You could use a comparable Windows-type codec, too. ------------------------------------------------------------------------------ [Will Gaffney] "Should I convert the MPEG into another format then import into AE? " I'm of the opinion that you shouldn't have captured using MPEG in the first place. MPEG is a lossy codec. The picture quality doesn't stand up to trips back & forth from various applications like AE. But then, I don't know how you're going to use the work you do in this project. If it's for a high school class project, you're cool. If you're making miniature-size web video, you're likewise good to go. But if it's for a paying commercial customer, you're playing with fire. ------------------------------------------------------------------------------ [Will Gaffney] "Will this solve my High-Res, Small size, single video/audio file dilemma?" Again, it all revolves around your end use for this project. But there's one topic on which I can surely give advice : DON'T EXPORT! RENDER USING AE'S RENDER QUEUE! You will no doubt read Roland Kahlenberg's post. Roland's one of those Guys Who Knows His Stuff, and that's no bull. Did you read his description of a Multiplexing switch? I doubt you'll see that if you use a simple export. It's probably contained in the Output Module of the Render Queue. For more information, look up Render Queue in AE Help. You will find it.... well, helpful. Dave LaRonde Sr. Promotion Producer KCRG-TV (ABC) Cedar Rapids, IA Respond to this post   •   Return to posts index

	Re: Exporting HD MPEG with Audio as 1 file?? by Dave LaRonde on Sep 15, 2008 at 3:06:35 pm There was a time when AE could render out MPEG2 with no problems. But now with MPEG2 licensing issues, you may not have purchased the software necessary be able to render out MPEG2 from AE. This is just a guess: I've NEVER rendered MPEG2's in AE, so I don't know for certain that you need something like that. I've always rendered out high-quality files, then let other applications do the conversion. Sorry. Dave LaRonde Sr. Promotion Producer KCRG-TV (ABC) Cedar Rapids, IA Respond to this post   •   Return to posts index