Batch convert the 44Khz audio to 48Khz (DVD compliant) ?

[Umen Pich]

Hi guys,

I have a heap of musical clips, DVD compliant in size/pixels but not in audio, i.e. the audio is 44khz.

The question is -- Do you know a fast (automated) method to convert the audio sampling in mpeg files (hundreds of pieces in my case)

If it is to be done manual - I would first demultiplex, then convert the audio by an audio editor, than convert to mp2 by besweet, and multiplex again. But this is a very time consumig task for so many clips.

That is why I am looking for some batch method

thank you

[bugster]

Don't know about the multiplex/demultiplex part, but for the conversion with besweet it should be a breeze.

Take one of your audio files (already demultiplexed) and set up Beseet appropriatley (I take it you are using the GUI). Then click 'copy command to clipboard' (I think thats the correct name). Open notepad or some other text editor and paste in the command line. Add the word 'call' (without the quotes and followed by a space) to the front of this command line. Now copy/paste this command line repeatedly enough times for one command for each file you want to convert. Now the laborious bit, go to each copy of the command line and replace the input and output filenames such that you have one command for each file. (If your files are sequentially numbered this should be relativley trivial, just time consuming). Now save this in the same dir as your audio files and call it something like convert.bat.

Open a dos box (command window), change directory to wher your audio files are stored and simply type 'convert.bat'.

Take a break and come back when it is finished!


Only a partial solution but it may help.

[Ejoc]

Just a thought, can you command-line TMPGEnc to demultiplex? Then you could add that to your bat file, and do it all.

[spidey]

excluding the demultiplexing, you could use SSRC in TMPG, and simply make project files and save out the Elementary Streams, and then batch process them.

You could use the source Mpeg / Dat as the source, but it wouldn't get your DeMultiplexing done, it'd just strip out the audio.

[sterno]

I remember that bbtools has a program to demultiplex on the command line. MJPEGTools has a command-line multiplexing program, but I haven't used it for multiplexing anything but still images.

[txpharoah]

Just be aware that BeSweet does not add any anti-alias filters to prevent bad sound quality from the conversions. So your end-product from BeSweet may sound like crap. Because of that (lots of situations where BeSweet sucked), I now use SoundForge and SoftEncode for all my audio work. The whole "BeSweet is free" thing would have been nice if it would just work as good as the commercial programs. But it doesn't.

[Umen Pich]

OK, thank you guys !

[yf2001usa]

use (s)vcd2dvdmpg it will batch demux and encode with besweet to 48. the plus version will even author (without menu's) for you