Your graph has a signal of -40dB. Are you working in high-energy physics? If it's only nano-tech or something of this magnitude, you don't have equipment that is this precise.
And all the "high-intensity" findings on your posting (at audible 0dB) are probably because the expensive cable didn't connect well to the socket. And are still nothing, and have no impact on your sound quality.
Ok, assuming you are posting this honestly instead of just pushing something...
Take a look on the meaning of "noise", and how much of it your devices create. The best description of what is happening in your entire text is "nothing".
The OpenAI IOUs are all covered by NVidia's "will invest"s. NVidia doesn't have extra to spend around.
What doesn't make anything any better, of course. And it's OpenAI on that line irl anyway. And they did in fact buy it with lots of "will invest" papers from other companies.
At -40, it doesn't make any difference what kind of dB you are talking about.
(Well, if you are looking for superstrings evidence or even quantum gravity, it does, but I guess it's not your case.)