Well, most DAW’s (Digital Audio Workstations) will allow you to “upscale” audio, by placing it into a larger container, like 32 bit float point. If you mean cleaning up bad audio or even reconstituting peaks, you can look into something like iZotope RX that specializes in that. But usually the process of audio restoration involves more than one feature and manual corrections, so I’m not sure to what extent could it be automated at this point.
If you have low quality audio in an old video, its less about “upscaling” it, because that is the easy part, the harder part is audio restoration and clean up. If you are in need of that, and you are waiting for Topaz to maybe implement something, you can look into iZotope RX, they specialize in that sort of thing and they are pretty much industry standard.