Podnutter:

Of course the easiest way is to avoid using them in the first place but because we have guests, it is impossible to eradicate the umms and ahhs completely so we learn to deal with it as part of our usual editing process.

It really depends where the filler turn up in the recording. If they are standalone words, it's easier to snip them out. But if there is overlap with other words, we will make a judgement call whether to leave them in. If we have to edit them out, we fade down the last couple of frames so the cut sounds less abrupt. We use a lot of sound effects in Tomboy Tirade podcast so sometimes if the edit calls for a sound effect, I will use them to hide my cuts.

Hope that helps!