6 channels to Stereo

[doomleox999]

Hi everyone, first of all english is not my first language, sorry for any mistakes I make.

When I encode a 6ch audio to stereo with MeGUI I use this setting:



The final result is not as loud as the original audio, now, if I extract the audio track from the file and encode it with ffmpeg (-i sixchannels.aac -ac 2 -ab 128k stereo.aac something like that) the result is amazing! It's almost indistinguible from the original.

I'm no expert, so I'm not sure if I'm right, but I feel that ffmpeg mixes the 6 channels and MeGUI only takes 2 out of the 6. Again, I'm not sure if that's right but that's the impression I get.

Am I right? Am I wrong? Is it possible to use ffmpeg WITH MeGUI (to save time) or tell MeGUI to "mix the 6 channels into stereo"?

Thanks in advance!