Please can someone tell me if there are plans to enhance Avidemux to enable this to be done without having to resort to using other transcoding tools.
#Avidemux add audio only playing one track mp4#
To bypass the current limitations of Avidemux in respect of multi-channel mp4 creation I used ffmpeg to add the second 6 channel AC3 audio track back into the Avidemux transcoded mp4 file as follows (I post this in case it helps anyone else):įfmpeg.exe -i inputfile.mp4 -i additionalaudiotrack.ac3 -map 0:v -codec:v copy -map 0:a:0 -codec:a copy -map 1:a:0 -codec:a copy output.mp4
#Avidemux add audio only playing one track movie#
I have now succeeded in achieving this goal by extracting the 6 channel audio into a separate file as per the Avidemux documentation, and then transcoding the movie to H.264 with an AAC stereo downmixed 'Main' audio track. Track 2: Original DTS 768kbit/s 6 channel audio (or AC3 384kbit/s where quality not important) Track 1: AAC 128kbps (or better downmixed from DTS 6 channel) Stereo Nonetheless, there is a way to add a second audio track, with limited support and no processing at all on that second audio track. Avidemux can only handle one audio track internally. An avi dual audio file is no good for use with iTunes or Apple TV. Avidemux Documentation - Dual audio track. in Edit->Advanced Audio Properties assign which audio sources. Since each audio will reside on a separate track you will be able to edit them individually. The individual tracks may be used for audio or video they are not specific to either. in Settings->Output->Recording tab check the audio tracks you want to write to the video file. After importing each track into Camtasia you will be able to add the audio onto separate tracks into Camtasia. set Settings->Output->Output mode to advanced. I have discovered that (as is recorded elsewhere on this forum) Avidemux cannot yet create an mp4 file with two audio tracks in it. To write multiple audio tracks with OBS, you need to do: - use a file type that supports multiple audio tracks. I wanted though to keep the 5.1 information so that when in future I buy a surround sound receiver, I can select the surround track in iTunes and use the HDMI output from the Apple TV as an input to the receiver. I have therefore used Avidemux to convert to H.264 and downmix an AAC stereo track from one of the AC3 6 channel audio tracks in the VOBs. I have discovered that iTunes and Apple TV require a stereo audio track otherwise they both choke on the file.
Of course, you will need the audio codec to play it back (mad or. So if you want the second ac3 track from your mpeg file, enter 1. It is C0-c7 for mpeg audio (.mpg, vcd.), A0-A7 for PCM audio, and 0-7 for AC3 audio. 37K views 6 years ago Avidemux: append audio to a video or replace it - change it without re-encoding. This audio stream is referenced by its mpeg (sub) stream id. I have been running experiments to see if I can create good mp4 files of movies I already have on DVD so that they can be kept in iTunes and be accessible to (or streamed to) my Apple TV. Avidemux can handle one (and only one) audio stream from mpeg.
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