Tell me more ×  I want to convert the audio track of a MKV file
to HE-AAC (AAC+/AACplus). The audio track is AC3. But there
seems no GUI for HE-AAC encoding? I only found out there is a
Command Line Tool (CLI) from Nero, but I don't know if this can
do HE-AAC.  Any help? Any recommendation for a GUI that can
convert AC3 to HE-AAC? Also should be able to handle surround
sound (5.1/6-channels).  share|improve this question To answer
your other question: The Nero AAC encoder only accepts WAV as
input format. Please use comments for interaction, not answers.
–  LiveWireBT Sep 9 '12 at 14:59 I have updated my answer with a
new command line that uses avconv for input format conversion.
–  LiveWireBT Sep 10 '12 at 23:45 add comment  1 Answer  Nero
AAC Encoder usage  neroAacEnc does support HE-AAC and HE-AAC v2
via -he and -hev2 parameters.  This encoder is (still?)
considered to be the best encoder quality wise. Nero offers it
free of charge but doesn't give support for it. One problem you
will encounter with large