Tmpgenc DVD Author is redlining my audio: distortion problem

[Thumper Strauss]

PROBLEM
When I author VOB files with Tmpgenc DVD Author, the sound in some (loud) home movie scenes becomes distorted -- as if it is red-lining.


THE PROCESS
1/ Captured edited DV home video to hard drive with Studio 7
2/ Drop AVI files into Premiere Pro
3/ Exported timeline sound as WAV file
4/ Converted timeline to MPV video file
5/ Imported MPV and WAV into Tmpgenc DVD Author
6/ Created VOB files
7/ Burned to DVD-R with Nero and played on Pioneer 343


PLEASE NOTE
A/ When I play it on my standalone DVD player, I hear the distortion at some parts.

B/ When I play it with WinDVD, I don't hear the exact same distortion, but I can tell that it's louder.

C/ However, when I play the WAV file ALONE, it sounds perfect -- not at the all the same as when I play the VOB file in WinDVD


These facts have led me to speculate that the problem is Tmpgenc DVD Author. What do you think? What else could I try?


OTHER THINGS I'VE ALREADY TRIED THAT HAVEN'T HELPED
1/ I've tried using the default video and audio files created by Premiere Pro when you export to MPEG-2...

2/ I've tried extracting the a WAV sound file from the AVI file with VirtualDub...

3/ I've tried converting the AVI file with TMPGENC 2.5

However, in each case, the audio sounds distorted BEFORE I even put it into the authoring program! That's why I developed the process listed above. At least it creates a nice sounding WAV file before I author. But, of course, the sound messes up once I run it through TMPGenc DVD Author to create the VOB files.


I know that was long, but I wanted to explain everything I did. If you can suggest something, please do!

Thanks!

[bugster]

TmpGenc WILL NOT change the audio at all, if it is DVD compliant. That is it must be sampled at 48Khz. If it is not then TmpGenc DVDA will re-sample it.

I suggest you open the wav in goldwave and sjust the volume their, saving a new copy. Then use that to author your DVD with.

[Thumper Strauss]

I didn't think that TMPEGenc DVDA would change the audio either. But the WAV was 48000, so I don't know what the problem was...

Anyway, I will try your suggestion. I don't have Goldwave, but I have SoundForge. Should there be any difference?

[bugster]

Anyway, I will try your suggestion. I don't have Goldwave, but I have SoundForge. Should there be any difference?

Any audio editor should do the job, inc soundforge. I usually suggest goldwave as it is shareware and pretty good.

[thor300]

Just had problems with sound using TDA and found this thread. I always encode to AC3 with Besweet, but today i forgot to select the AC3 file in TDA so it used the MP2 (excellent sound quality) from the original file. When i played the clip from the DVD it was totally destroyed, it was first then i discovered i forgot to use the AC3 file. TDA made it too loud, channels was crossing over each other and there was some unwanted noises here and there. It sounds like if you record with an old taperecoreder with built in mic from a loudspeaker 5 meters away, its really that bad. If anyone want to let TDA reencode the sound, listen to it before writing it to DVD, it just gave me a coaster. Its VERY bad, but i hope its not usually THIS bad.