HoRNet Sybilla

Say goodbye to sibilant sounds…

HoRNet Sybilla

Sybilla is an intelligent de-esser designed with one purpose: reduce those sibilant in almost no time.
It works dividing the input signal in 8 different bands carefully tuned to the sibilant sound frequencies, the output of these filters drive a VCA modeled compressor that has a smooth and pleasant response. This coupled with envelope followers “perfect for speech” gives Sybilla a very musical sound but effective de-essing.

Simple but effective

Sybilla has just two knobs, since the frequency detection is done automatically to always catch the most critical part you only have to decide how much the de-esser should work on those frequencies and if you like some of the original signal mixed in.
That’s it. Sybilla is easy and effective de-essing.

Demo limitation

The demo is fully functional except for the fact that every now and then it will silence out.


  • Automatic de-essing
  • adjustable effect amount
  • 8 different detection filters
  • on/off switches for each of the 8 filters
  • effective de-essing regardless of signal level
  • dry/wet knob
  • Mac OS X (>=10.7)¬†and Windows support
  • 64bit compatibility both on Mac and Windows
  • Audio Units VST2.4, VST3 and AAX format

Video Overview


Copy protection

The HoRNet Sybilla has no copy protection, I don’t believe in copy protection, they are always cracked and they are annoying for the users, we all know you are not going to give away the plugin on the internet…

So simply download the plugin and enjoy your recordings!

One thought on “HoRNet Sybilla

Spedup says:

This is an exceptionally good de-esser. It's sufficiently flexible to deal with almost anything but also really easy to use. The results sound very natural – none of the horrible 'lisp' effect that other de-essers seem to give. Just a few controls make it easy to get the job done quickly. Don't be fooled by the price, this is a professional tool. Ten out of Ten!

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