Last week-end I had to shoot a presentation in the unfinished basement of an office building (let's not even talk about the crappy lighting). Just as fate would have it, the duct work for the AC and one of the main vents was right over my head!
To make a long story short, it was impossible to turn off the AC (temp here in Miami was in the mid-90s with a heat index in the low 100s). While I discussed this with the client and explained what the results would be, I was hoping that NR would be able to help remove the AC's noise.
When I captured the video, the opening had a solid six seconds of room tone with the droning AC just prior to the opening of the presentation. Opened up NR and in no time it took care of the problem. Now, the client thinks I'm an audio genius... and nothing could be further from the truth!
My sincere thanks to the true geniuses at Madison.