On Wed, Feb 3, 2021 at 7:48 PM Nicolas George <[email protected]> wrote:
> Marco Mircoli (12021-02-03): > > wandering if it is possible to process just the 1st audio channel of > an > > input. > > I don't know how many channels I will have as input, but I know that I > have > > to process just the 1st and the others I have not to considerate. > > > > INPUT from mono to multichannel > > filters..... > > OUTPUT just one channel (mono) > > > > I've tried this but doesn't works > > > > ffmpeg -i FILE_FROM -map_channel 0.0.0 -af > > highpass=f=70,adeclick,loudnorm=I=-16.5:TP=-1.5:LRA=7 FILE_TO > > Just use pan=mono|c0=c0 to extract the channel you want wherever you > want in the graph. > > No need to completely split the channels, it was meant for versions that > lack the pan filter. > You missed fact that user needs all channels again, not just first. > > Regards, > > -- > Nicolas George > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
