exact settings in AutoGK for mp3 encoding

[Hobojobo]

I would like to know the exact settings AutoGK uses to normalize/transcode to mp3.

I know vbr 128 kbit/s is used.
The log file does not tell me much about audio transcoding.

Can someone give me a hint.
Which tool with which comand line I have to use?

I have got a ac3 file, which I want to transcode to mp3(vbr) without doing the video processing.

Thanks.

[Hobojobo]

I'm a autodidact. ;)
I nearly got it.

I hate CLI with all the switches...
It wasn't as hard as I expected.

normalize input.wav
azid.exe input.wav
lame.exe --preset 128 input.wav

What switches do I have to use with azid.exe for 3_2ch ac3 to 2ch downmix?
Is --preset 128 the right preset the one, or is a alt-preset even another preset?