Audio Options for MPG2 Data File

Tinle wrote on 2/15/2008, 5:50 AM

I wish to render a 95 minute video to a data file that will fit on a std “4.7 Gb” DVD data disk.

The purpose is to allow the scorer to view the rough cut of the footage, on a computer with an LCD screen.

I would like to preserve existing audio quality during the trans-coding, (at the expense of the video bit rate, if necessary).

When going to the Mainconcept Mpeg 2 (vegas 7 latest update)rendering options, I can’t find PCM wav as an option. How do I get to that? Is that essential ?

For this sort of end use (by the scorer, as an MPG2 data file, viewed on a progressive screen), what are other options that are suggested?

Comments

blink3times wrote on 2/15/2008, 6:32 AM
WAV is there but you have to render it out separately. If you want to capture as a wav from the beginning (for reasons of preservation) then your best bet would be to use Pinnacle studio or avid liquid for the capture... they capture as a separate m2v and wav file.
Tinle wrote on 2/15/2008, 12:53 PM
Blink,

Thanks, If there is no way to generate the MPEG2 with WAV as a single (video & audio) then I need the next best solution for rendering from the Vegas 7 timeline to MPEG2 in a way which provides excellent quality audio, (even if at some expense to the video bitrate necessary to fit it to one single sided disk). I do not want a video DVD, I want an MPEG2 file, playable on a computer w/ LCD screen. Suggestions?

Suggestions?
blink3times wrote on 2/15/2008, 1:41 PM
Well you can do a mpg file with the audio at it's max settings (which is pretty bloody good)

Just render as MPG and go to customize, click on the AUDIO tab and you can max out both your bit rate and your sample rate (384 and 48,000 respectively). But as for muxing PCM with mpeg...... as far as I know... Vegas itself can't do it. In Vegas, if you want anything special then you must render the audio file separately and then depend on your authoring program to mux.

Now the problem with using DVDa is that I believe (and I could be wrong on this) is that it doesn't give you the option of creating a file as opposed to a disk.

I know that both Pinnacle studio and Avid Liquid WILL give you a choice of creating files from the timeline or a disk with mpeg audio OR pcm (which is what I usually use for most of my authoring.)
Tinle wrote on 2/15/2008, 3:03 PM
Blink*3

Thanks. That's the confirmation I needed. I began to think it wasn't possible after re-reading the MPEG encoding white paper (in the SonyDownloads area), and not finding it there.
johnmeyer wrote on 2/15/2008, 3:20 PM
I just rendered a test MPEG-2. I then rendered the audio as PCM (Microsoft WAV at 48 kHz).

I put this into DVDA and authored a test project. I took the VTS_01_1.VOB file and renamed it with an "mpg" extension. It played fine in WinDVD.

I dropped this "mpg" file into GSpot and it reported it as a VOB file. It correctly showed the audio as LPCM.

So, while the MPEG file may not be 100% kosher, it seems to work here (at least with WinDVD).

Tinle wrote on 2/15/2008, 5:16 PM
John,

Thanks for your effort. I'll give it a try.

Tinle