I have a sound card (Behringer UMC202HD) which connected to a Windows 10 computer by usb cable, i am able to recieve audio from input device with the following ffmpeg command:
ffmpeg -f dshow -i audio="IN 1-2 (BEHRINGER UMC 202HD 192k)" -map_channel 0.0.0 -c:a pcm_s24le first_channel.wav -map_channel 0.0.1 -c:a pcm_s24le second_channel.wav
But i can't send audio to sound card's output with the ffmpeg, is there any way to do this? if there is, how can i do it?
Linux version (pseudo command) of what i'm trying to do in Windows:
ffmpeg -i my_input.wav -f alsa alsa.behringer_out
I couldn't find a way to do it with the ffmpeg.exe but, i found a simple way of it with the ffplay:
Set the system's output to sound card from Windows sound settings and turn on mono audio option, simply run this code for send the output audio card's channel 1:
ffplay -i input.mp4 -af pan="stereo|c1=c1" -nodisp
for the channel 0 and channel 1:
ffplay -i input.mp4 -af pan="stereo|c0=c0|c1=c1" -nodisp