Does there exist a #FOSS tool that allows me to analyze the dominant frequencies in a portion of an #audio file and to apply a filter to remove all but a specific frequency? #AskFedi
Depending on how automated you want this to be, sox may be useful - it can certainly do the filtering, and can at least generate a spectrogram from which you can decide where to filter.
Csound can do this sort of thing more capably but using it will involve coding to define exactly what you mean.
@Matthew Skala The application here, FWIW, is to extract Morse code from an audio file, because I'm not good at Morse code, and can decode it more easily visually than by sound.
James Ryland Miller
in reply to Jonathan Lamothe • • •Matthew Skala
in reply to Jonathan Lamothe • • •Depending on how automated you want this to be, sox may be useful - it can certainly do the filtering, and can at least generate a spectrogram from which you can decide where to filter.
Csound can do this sort of thing more capably but using it will involve coding to define exactly what you mean.
Jonathan Lamothe likes this.
Jonathan Lamothe
in reply to Matthew Skala • •Matthew Skala likes this.
Jonathan Lamothe
in reply to Jonathan Lamothe • •School of Game Audio
in reply to Jonathan Lamothe • • •Sonic Visualiser
www.sonicvisualiser.org