As I've been slowly working on processing transfers of my old cassette recordings, I've found myself enjoying them more than I expected. It's like there is a certain magic to them, and I don't know if it's simply because they were made on cassette tape or something else. I was using a D6 so there's certainly no mojo to the recorder, and generally I'd either patch or use an Audio-Technica AT822. Again I'm not certain I'd chalk the "magic" up to the mic(s).
Now let's be clear up front: terms like "coloration" and "warmth" are almost 100% subjective and I can't even articulate entirely what I mean. Some of you may have a gut feeling for where I'm coming from, though.
So what I'm wondering is if there's any sort of post-processing that might be able to take a purely digital recording and get it somewhere in the ballpark of that analog magic. Obviously it won't be exactly the same (particularly when I can't even explain entirely what I'm going for), but getting part of the way there would be a nice start. I'd appreciate any ideas...this is pretty open-ended so any input is appreciated.