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In my case above, and must be on the left channel and and on the right channel. Unfortunately, the command above didn't work and I need some superior help with the "pan" part or even improve the whole command. "aresample=async=1,aformat=sample_fmts=fltp:sample_rates=48000:channel_layouts=stereo \Īresample=async=1,adelay=369147|369147,aformat=sample_fmts=fltp:sample_rates=48000:channel_layouts=stereo \Īresample=async=1,adelay=287|287,aformat=sample_fmts=fltp:sample_rates=48000:channel_layouts=stereo \Īresample=async=1,adelay=300382|300382,aformat=sample_fmts=fltp:sample_rates=48000:channel_layouts=stereo \

ffmpeg -i pedro_1.mka -i pedro_2.mka -i michal_1.mka -i michal_2.mka -filter_complex \ It's not standard so my command must be dynamic. I recorded a meeting of 2 people and end-up with 4 MKA files, 2 for each person or, it could be, for example, 1 person with 3 MKA and another one with just 1 MKA or even each person with 3 MKA files being in the end 6 inputs. This happy case scenario is each person with just one audio file, on left and on the right.

"aresample=async=1,aformat=sample_fmts=fltp:sample_rates=48000:channel_layouts=stereo \Īresample=async=1,adelay=108|108,aformat=sample_fmts=fltp:sample_rates=48000:channel_layouts=stereo \Īmerge=inputs=2,pan=stereo|c0output.mp4 My "simple command": ffmpeg -i audio_pedro.mka -i audio_michal.mka -filter_complex \ C:\ffmpeg\bin\ffmpeg.exe -y -i 'input1.flv' -i 'input2.flv' -filtercomplex 'nullsrcsize640x240 base. I have some audio files where I need to merge them and each person must be in a different channel. I am trying to combine two video files (of size 320x240) and create a single, horizontally extended output video file (of size 640x240) but for the audio merging, the command fails when one of the input files does not contain audio stream.