Another interesting fact about podcast editing is that some editors use “noise reduction” techniques to remove unwanted noise from the original audio. This includes background noise such as traffic, people talking in the background, or even noise caused by the microphone itself. These techniques allow editors to remove this noise without compromising the overall audio quality, resulting in cleaner, easier-to-listen audio.
Some popular software for this task are: Izotope RX, Audition and Adobe.