Eliminate Vocal Sibilance with DeEsser

Back then, vocals were usually recorded far away from the microphone. While all this was happening, there was no need for a handy little thing called DeEsser. As technology progressed, we could record vocals by singing or speaking closer to the microphone, and that's when we stumbled upon a problem.  

Annoying Sibilants

Sibilants like the 's' in "seem" produce noisy high‑frequency consonants. The turbulence creates them as air whistles through the speaker's teeth. There is no denying that excessive sibilance is a persistent concern in vocal production. Now you could ask, 'Why can't we bring the volume down (or use a pencil tool) every time this annoying sound occurs in the recording? You could do that, but this would be tedious and time-consuming. For this reason, intelligent people invented a DeEsser, a relatively simple tool capable of locating and attenuating these annoying sounds and, eventually, saving you a lot of time.  

Basic De-Essing

Firstly, let's hear a short vocal take that has some "s" noise when the word "seem" is sung (towards the end of the sample).

~ Vocal Unprocessed

There are many different DeEsser VST plugins available on the market these days. I find one of them particularly useful, and that one is DeEsser by Waves Audio.

As you can see from the picture above, I adjusted some essential parameters. The frequency parameter determines the frequency spectrum to which the DeEsser will be applied. The Threshold parameter controls the quantity of effects introduction. Its meter section represents the usage of the effect on the clean signal. I want to point out that being gentle with the threshold parameter is essential. This is because it determines the application of the applied effect. It is crucial to be gentle with it since using it too much can lead to artificial and lifeless sounds. Now, with the DeEsser's parameters set, let's hear the processed vocal:

~ Vocal Processed