Abruptly G

One of my most prized possessions is my Yamaha VSS30 keyboard. With a little bit of know-how (and paired with FFMPEG), you can get some pretty neat results. The command I used to add visuals to the audio file is the following:

ffmpeg -i input.m4a -filter_complex "[0:a]showcqt,format=yuv420p[v]" -map "[v]" -map 0:a output.avi

Essentially, this takes a piece of audio as input and creates a visual spectrogram. This particular filter is named the "showcqt". This relies on a discrete Fourier Transform and you can even set the preferred window size for analysis. With a large enough window size and ample buffering time, you would be able to see each MIDI note as a spike in the resulting visualization. With the applied fuzz and echo effects on the VSS30, you get some hairy visualizations around each note.

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