Just WOW! it worked perfect. I didnt know I could load an avs into the audio input of MeGUI. Aside solving my issue, I just learned a little more, I hope this enlighting post awakes an interest on me on the audio part of the digital encoding.gracias
BTW what bitrate do you recommend me for medium quality towards good in m4a/AAC? something like 128,160 of mp3.
Also, in your script you are downmixing, normalizing,etc but in Megui the audio encoder also does its stuff in the Config options. Do I need to uncheck, keep originals everything from the options?