[genewitch]

There was a java tool that could improve audio but it was designed for archival of tape, film audio, and old records and the like. I lost the computer i ran it on, i even paid for it but i can't find the receipt to redownload (or even rebuy it). It worked very well - about as well as i can do manually, and perhaps a few percent better - i don't remember many shimmering artifacts https://www.youtube.com/watch?v=xazubVJ0jz4&t=85s [0]

I'd be pleasantly surprised if nvidia can "fix" audio, as i have.. oh, a few thousand hours of audio that i could clean up in an automated way.

[0] hilariously, youtube gave me a copyright strike for this video, even though it's obviously an archival upload. Jerks.