The demo with the vac is certainly not a success.<p>I sometimes wonder if all those filters optimise for a wrong thing. Removing noise is meaningless, unless the overall discernability improves. If you remove noise with the price of the voice becoming choppy, "robotic" and unnatural, you didn't improve the situation, and in some cases you can say only made it worse.<p>What even further deteriorates legibility for most noise suppression filters is the discrepancy between the completely dry pauses and the remaining ambiance "under" the voice. It would be much more interesting to see some style transfer for voice ambience as an alternative to current de-verbs.<p>When dealing with voice processing I advocate for restraining from noise suppression filters for as long as possible, and I haven't seen a publicly available noise suppression filter which could change my position yet.