Authoring a DVD with three tracks, one LPCM, one AC3 and one MP2.
I'm having TMPGEnc DVD Author recode the first and last to AC3. I've set TDA's AC3 plugin to use 448k on the bitrate and I can't tell the audio from the original.

The only problem is I wish the audio level was a bit higher, even the original AC3 file (captured with a DVD Recorder) is a bit lower than I'd prefer.

Is there any way to raise the audio level a bit without recoding the audio again? I don't see any way to do it in TDA. I would prefer not having to Demux first as the sync is perfect right now. I definately don't want to lose any quality.

Thanks.