a part of the picture), they are lost when processed by Avidemux, there is no code to handle soft subtitles. Quote from: Ronstang on November 06, 2020, 10:20:42 PMI still have subtitles in all my files I process through Avidemux. If you have devices that won't play 5.1 and don't want or need to encode the video then I suggest you look at Xmedia Recode. This way in the den I can use surround and in the bedrooms it automatically plays as stereo. Personally, I use Emby to organize my video content and play it back on my TV through my Firestick 4K which supports 5.1 channel audio and many video codecs so for me there is no need to waste time making a stereo track. There are many options here you just have to do a little research. I use MCEBuddy to encode recorded TV and ripped discs into mp4 in an MKV container.and extract the subs, convert them to SRT and put them back into the video container for ease of use. If all you are doing is changing the audio track then Xmedia Recode is probably your best bet. Personally I only use Avidemux as an editor and then use MCEBuddy, Xmedia Recode, or FFmpeg Batch AV Converter to do any other operations.

What kind of video file are you working with? There are plenty of tools to do what you want.

Xmedia recode vs avidemux