How can I add an AAC 2 channel audio track as default

General Support / Questions
4

I’ll take a stab at this and dissect the FAQ strings.

ffmpeg-audio=-map 0:1 -map 0:1 -c:a:0 aac -ab 192k -ac 2 -c:a:1 ac3 -ab 192k

  1. ffmpeg-audio=
    This is for processing non-ac3 audio (unsure if that is on a track by track basis, if I have a file with AAC and AC3 do both lines get used?).

  2. -map 0:1 -map 0:1
    I don’t know why this is needed to be honest

  3. -c:a:0 aac -ab 192k -ac 2
    Make an AAC 192k stereo track of the source audio as audio track 0 in the output file.

  4. -c:a:1 ac3 -ab 192k
    Make an AC3 192k track with the same number of channels as the source audio as audio track 1 in the output file.

ffmpeg-audioac3=-map 0:1 -map 0:1 -c:a:0 aac -ab 384k -ac 2 -c:a:1 copy

  1. ffmpeg-audioac3=
    This is for processing ac3 audio (again unsure if that is on a track by track basis, if I have a file with AAC and AC3 do both lines get used?).

  2. -map 0:1 -map 0:1
    Still don’t know why this is needed

  3. -c:a:0 aac -ab 384k -ac 2
    Make an AAC 384k stereo track of the source audio as audio track 0 in the output file.

  4. -c:a:1 copy
    Make a copy of the source audio track as audio track 1 in the output file.

ffmpeg-AudioOptimized=true

  1. MCEBuddy should not try and modify these values.
    More info: MCEBuddy - Advanced Settings, Commands and Tweaking

I don’t know how to normalize the audio since you will need to have So in order to do what you would like to do I would think you would use the following:

ffmpeg-audio=-map 0:1 -map 0:1 -c:a:0 aac -ab 192k -ac 2 -c:a:1 ac3 -ab 160k
ffmpeg-audioac3=-map 0:1 -map 0:1 -c:a:0 aac -ab 192k -ac 2 -c:a:1 ac3 -ab 256k
ffmpeg-AudioOptimized=true

Hopefully that’s something to help you start experimenting with.