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Title: Avidemux recognizing AAC 6 channel (5.1) as AC3 5 channel?
Post by: dare2die on February 18, 2014, 01:38:16 PM

Hi, sorry if this has been posted before.

I'm trying to extract 5.1 AAC audio from an MP4 video (H264), then combine it with another MP4 video (H264).

Firstly, Avidemux extracts the 5.1 AAC as a RAW file, which has been explained elsewhere in this forum.

Then when i try to load the RAW audio file track to the other MP4 video, it reads as "AC3 5 channel".

Trying to save the file using either MP4 or MKV muxer creates errors or a crash-prone video file with missing audio, respectively.

Can anyone help me? I hope i don't need to post screenshots or other info as this problem seems pretty straightforward...

Thanks beforehand for all replies!

Title: Re: Avidemux recognizing AAC 6 channel (5.1) as AC3 5 channel?
Post by: mean on February 18, 2014, 03:14:21 PM

It will not work :
1- Avidemux does not support importing AAC
2- RAW AAC file are broken, they need some sort of headers/framing such as ADTS or similar

Title: Re: Avidemux recognizing AAC 6 channel (5.1) as AC3 5 channel?
Post by: dare2die on February 18, 2014, 03:36:07 PM

Thanks for replying Mean!

Nice to hear from a dev!

Ok i will look for alternative ways to get this done for the time being.

Avidemux Forum

Avidemux => Windows => Topic started by: dare2die on February 18, 2014, 01:38:16 PM