What is this effect when a low pass filter and eq is applied to the effect that you can sort if still hear the piano notes being played in terms of motion, what sorcery is this?
You can sort of still feel and sense the attatck and the vestibular effect of the keys being played despite their tones being filtered out?
Are you talking about something like Soothe or SplitEQ? There are certain spectral effects that can remove the tonal characteristics from a sound, leaving only the nontonal aspects. E.g. on a piano, you'd only hear the unpitched, percussive hammer and key sounds.
Here's a FOSS alternative for Soothe. https://bedroomproducersblog.com/2024/03/03/nih-plug-spectral-compressor/
Very cool, will check out soon. Really glad to have a place to spitball all my audio questions and you guys always sharing cool stuff like this
Example? I think you can answer your question by putting the sound you are hearing into audacity. Look at before and after. I suspect the low pass isn't perfectly removing all high frequencies. Plus in a real piano there are low frequencies present from the mechanics of the wood keys and hammers.
I was thinking that as well, it could be the actual mechanics, hammers and keys, that are being heard. Could be eq'ed to amplify them. I've done similar things with different mics and mic positions to record piano, to capture the "mechanical" sound of a piano.