Hi,

Try this with the amix audio filter : 

Ffmpeg -i input_file -i input_file -i input_file -map 0:0 -map 0:1 -map 1:1 
-map 2:1 -af amix (...compressions...) Output_file

Velotiaray Toto-Zarasoa

-------------------------------


>> 
>> Trying to convert a MPEGTS file with multiple audio streams to mp4 with AC3 
>> audio. I’ve tried map_channel and filter_complex but I can’t make it work 
>> (due to my misunderstanding I’m sure).
>> 
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