Original XDA post with changelog and other details linked below:https://forum.xda-developers.com/nokia-7-plus/themes/mod-nokia-recorder-ozo-support-t3917232
It is meant for Nokia 7 Plus but it is said that this app should work on any device with OZO support . I tried this on my Nokia 8.1 and seems to work flawlessly. So anyone interested try using it on your phone and comment down below about the results.
Here is the direct download link for the app which you can also find on the post linked above:https://drive.google.com/file/d/1MvSyGGckqgcOBBH-YxB1YfjlgsB-3Yyb/view?usp=sharing
PS: I compared this with HI-Q Audio Recording app and Nokia Recorder already sounds much better.