Multichannel DVD audio (ac3) --> downmix gets too quiet

[graysky]

I've been using MeGUI to encode some DVDs I have to mkv files with ogg audio. My problem is the original audio tracks are 3_2ch 384Kbps ac3 files and when I downmix to stereo they always get noticeably more quiet than the original ac3 file. Can someone recommend a tool that will allow me match the audio level of the original or at the very least apply some gain prior to encoding to vorbis?

Thanks for any advice!

[Soopafresh]

http://forum.videohelp.com/viewtopic.php?t=320614


There's also Vobdnorm by Coises

ftp://ftp.coises.com/vobdnorm-1.0.zip

Vobdnorm input.vob output.vob 31

[graysky]

thanks, I'll try that method out!