I only needed to add a highpass filter, which can be accomplished using this one-liner: ffmpeg -i input.mp4 -c:v copy -af highpass=400 output.mp4 It has myriad audio filters that can be combined in various ways. So I decided to break my rule of not processing the sound and apply a simple highpass filter to remove the noise.įortunately, FFmpeg, as always, comes to the rescue.
I like the rest of the recording, so I thought it would be a pity to skip publishing this sound action only because of the hum. Recording the dice example, however, I noticed an unfortunate low-frequency hum in the original recording: The original recording has an unfortunate low-frequency hum. For that reason, I only trim the recordings non-destructively using FFmpeg. The recorded files will also serve as source material for both scientific and artistic explorations later.
That is because I want to capture sounds and actions as naturally as possible. The idea has been to do as little processing as possible to the recordings.
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