Odd as I have never seen/heard of this "equipment hum in between the 15000-16000Hz frequencies". I am not saying you are wrong but in 35+ years of this (starting in the REAL 80s) I don't recall this being mentioned.
Is it an mp3 or other transcription thing?
Can we see/hear this?
All you can do is try increasingly expensive devices. I mostly use Q-Range (free) for sculpting. I also have khs Slice (and Carve) which are powerful. Apqualizer is oddly technical so maybe.
But again, I wonder at your initial premise, esp seeing you say you can't hear it. Seeing sound is like seeing a babeful babe, "love" means nothing until you can have a conversation with her.

https://i.bb.co/RzM0RYr/Screenshot-2025 ... 6-EDIT.png
Basically, when viewing the song in a spectrogram, there's a pink line going across the audio. Likely from equipment or something the microphones picked up that you really couldn't hear. It's not audible to me, but I'm approaching 30 and your ears change as you age. Someone much younger than me may be able to hear it whereas I can't.
It's a minor thing that can probably be ignored, but if I can notch those signals out precisely without effecting the rest of the audio, then why not?
Statistics: Posted by Nippi — Mon Jan 27, 2025 12:48 am