MP2 to LPCM tool?

[linkeboda]

I need a command line tool for transcoding/reencoding audio from MPEG-1/48kHz/20 or 16bit to LPCM/48kHz/16bit.

The reason being that a DVD made with the above mpg audio stutters and freezes on Panasonic standalone players but if the sound is LPCM it works perfectly.

"So don´t use Panasonic" is unfortunable not possible. The system I'm currently building has to cater for as many brands of DVD-players as possible with the burned DVDs.

So, does anyone know of a tool that can achieve this for me? Several tools doing steps of it is also acceptable

Even tools with a fee attached is acceptable since this is a major problem right now.

Sox and Besweet both are great tools but they don't seem to be able to fix this for me

[mats.hogberg]

Isn't LPCM basically wav?
Just load the mp2 in Goldwave, save wav. Then use the wav when you author the DVD
(Must say I've never used anything but AC3 when authoring, but...)

/Mats

[linkeboda]

Well almost, WAV data is always little-endian and
LPCM files for DVDs must be big-endian.

Goldwave is a good software but it's not commandline (that I can deduce from reading the halp section anyway) :/

[LloydAZ]

AC3 audio is standard on all DVD players as well, and since it's compressed, you'll get quite a bit more video per disc.

With PCM audio, you'll only get about 1 hour of video per single-layer disc.

BeSweet will create both WAV and AC3 audio from a command line.

I prefer to use GUI4ffmpg. The AC3 audio isn't as soft as what BeSweet produces. I've never used ffmpg from the command line, so I don't know how it works for converting audio only.

Just curious, why do you need a command line only tool?

[linkeboda]

The reason I need a commandline tool is that I'm building a GUI that amongst other things can make video-dvd's from the videofiles located on local servers.

AC3 might be an option but BeSweets ac3enc.dll seems to be, according to the web, a bit faulty and is not totaly compliant with ac3 playback which can be a problem with some consumer DVD-players :/

And the mp1 layer 2 sound that the videofiles have from start makes the final dvd´s freeze up on Panasonic players.

Funny thing though is that the videofiles that arn't working has the same configuration (bitrate video, bitrate sound, etc etc etc) as videofiles from another source and the other files work perfectly to make dvds and play on Panasonic. Anyway, if the sound is switched to LPCM then the dvd´s work just fine. Sure, I get a lot less video on each disc but that´s not really an issue for me