I still follow you Mike, you can’t hide from me
Anyway, I just wanted to share my way of de-noising. Firstly, Izotope RX suite is best option for this, but knowing that everybody can’t afford that, I will only be talking about audition’s de-noising process and audacity.
First thing that I found works better is when you before de-noising EQ the audio. Cut everything below 80Hz and everything above 15kHZ. Remember!!! FM TRANSMITTERS CUT OUT EVERYTHING ABOVE 15kHZ…if radio doesn’t need it, podcast doesn’t need it too
This helps de-noising process because it has less to worry about, and you don’t get artifacts in that places.
Second thing is that is better to do two passes with less strength then one with a lot. Learn the noise, then de-noise, learn noise that is left in again, de-noise again, and again if needed.
Restoration is all about compromises, you will never get studio quality sound, so have a good recording form the start.
Hope this helps somebody