Hello, anybody knows the reason why this command works. $ffmpegCmd = "ffmpeg -i $fileOriginale -af adeclick,afftdn=nr=80:nf=-20:nt=w:om=o,highpass=f=70,loudnorm=I=-16:TP=-1.5:LRA=14 $fileProcessato"; //Livella audio a R128
and this doesn't work. $ffmpegCmd = "ffmpeg -i $fileOriginale -af adeclick,deesser=i=1,afftdn=nr=80:nf=-20:nt=w:om=o,highpass=f=70,loudnorm=I=-16:TP=-1.5:LRA=14 $fileProcessato"; //Livella audio a R128 This creates an audio file of zero bytes, just the name. The difference is that the last I've added deesser=i=1 Any ideas? Thanks. S. Il giorno gio 28 gen 2021 alle ore 10:15 Michael Koch < astroelectro...@t-online.de> ha scritto: > Am 28.01.2021 um 09:44 schrieb Marco Mircoli: > > Goodmorning everyone. > > I'm new to ffmpeg and was wondering if anyone from the group could help > me > > set up a command line. > > My goal is to improve voice audio recordings. > > I would like to be able to do this starting from a command line I have in > > my script, modifying it to add: > > > > - 70HZ high pass filter > > - expander / noise gate > > - equalizer > > - compressor > > - exciter > > - de-esser > > - limiter > > - loudnorm to r128 (there is already) > > > > It would be nice to have all this just in one line, is it possible? > > This is the string where I'm starting from. > > > > $ shell = shell_exec ("$ ffmpeg_b -i $ audio_file_full_path -map 0: a: 0 > > -af loudnorm -b: a 96k $ audio_output_mp3 2> & 1"); > > yes, I think it's possible to do all this in one command line. All these > features must be added at the beginning of the audio filter chain, > that's between "-af" and "loudnorm". For example: > > $ shell = shell_exec ("$ ffmpeg_b -i $ audio_file_full_path -map 0: a: 0 > -af highpass=f=70,loudnorm -b: a 96k $ audio_output_mp3 2> & 1"); > > Michael > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".