DVDLAB is great but silent

[sfalcon]

DVDLAB is a great program indeed, but my only complaint is that it is silent, i.e., no sound to be heard when playing movie preview. This is annoying when we edit a music show, particularly to place chapters markers right on the start of each music (we have to preview the file in another program. it sucks...).
Can anyone please tell me if I can edit the wav file (from an MPEG 2 or VOB) to 5.1/DTS? I know I can do it to AC3 using TMPEG's AC3 Plugin. I can do it also with plain wav files, but not to be rendered with video files (using Adobe Audition 2.00) and then burn to DVD.

Tks for yr help.

sfalcon

[machf]

You mean you want to "fake" 5.1 sound from a stereo source? Please try to be more clear...

[guns1inger]

DLP 2 supports audio preview for programme streams (i.e. mpg files, rather than m2v/mpa files)

ffmpeggui can also encode audio as AC3, as can Sound Forge. You bring them into DLP to add to your movie.

Machf is right- you need to explain what you are trying to do more clearly.

[sfalcon]

Hi, Machf
Yes, I'm trying to "fake" 5.1(or DTS) sound from a stereo source. The source is the audio extracted from an MPEG 2 or VOB file. This conversion was made possible thru the Adobe Audition (that makes six channels out of a wav file) and a 5.1/DTS encoder program (I use Surcode DVD Pro) that mixes all six channels (L+R, Center + LFE and Sl+Sr) into a wav file that tricks the AVReceiver into thinking the sound comes from a 51./DTS source.

sds
sfalcon

[guns1inger]

are you sure you have the right version of Surcode ?

if you are producing a DVD ready AC3 audio track it will have the extension .AC3. Similarly, for a DTS audio track you will have the extension .DTS.

Surcode usually produces audio tracks with a .wav extension when it is producing audio for surround sound CDs. In this case the audio is a multi-channel surround mix in the AC3 or DTS format, but sampled at 44.1 kHz (CD standard), and not 48 kHz, which is required for DVD.

make sure you output the correct format audio before importing it into DLP.

[sfalcon]

are you sure you have the right version of Surcode ?

if you are producing a DVD ready AC3 audio track it will have the extension .AC3. Similarly, for a DTS audio track you will have the extension .DTS.

Surcode usually produces audio tracks with a .wav extension when it is producing audio for surround sound CDs. In this case the audio is a multi-channel surround mix in the AC3 or DTS format, but sampled at 44.1 kHz (CD standard), and not 48 kHz, which is required for DVD.

make sure you output the correct format audio before importing it into DLP.

Hello guns1inger!

Yeah, I know that Surcode produces mixed wav files for 5.1/DTS CD's at 44.1kHz, but it also produces those same wav files at 48kHz intended for DVD's, as long as the six channel files to be input are mastered at 48lHz also. And this is done by Adobe Audition 2 perfectly.
As I said before, I succeeded in having these wav files prepared by Surcode and burnt to a DVD. The result was great, it played fine in DTS mode, but the problem is when I try to insert this mixed wav file into the program (VEGAS or DVDLAB PRO) for rendering (audio + video) for making de VOB files to burn to DVD. In the rendering process, the DVDLAB PRO says the wav file will be compressed. I guess that's the problem. A compression seems to change the file to an inconvenient output.
tks for yr attention!
rgds
sfalcon

[masterpug]

you can preview audio! see below: i use it, works great!

here's the forum thread with the dvd-lab pro programmer and he's the one that created
this little audio preview tool.

http://www.mmbforums.com/phpbb/viewtopic.php?t=13279&highlight=audio+preview



what it does is gives a "normal" and "audio" tabs below the preview screen...now you
can preview with audio, as long as not elementary streams. must use mpg or vob.

[masterpug]

sorry, dead link now. PM me if you'd like me to email it to you as a little zip attachment. mike

[Baldrick]

masterpug: you can post the file directly here. click on post reply and add it under upload.

[guns1inger]

I use Surcode DVD DTS Pro to produce DTS audio for DLP, and have never had a problem with using the files it produces, so long as they are 48 kHz.

[masterpug]

this little addon does the trick!

audio%20preview%20addon.rar

[sfalcon]

Hello everybody!

Finally DVDLAB is now perfect! We can test the audio without having to use another program!
As to my difficulty to listen to DTS sound inserted in DVD's using a wav file made by Surcode, I also found a workaround. The wav file must be input as a second audio.

tk u so much.

sfalcon

[guns1inger]

That is a DVD spec restriction. Theoretically you should not have DTS as the only audio because it is not downmixed to stereo like AC3.

As for the add-on - not much use to me because I only work with elementary streams. The readme says this only works with programme streams and VOBs.