SYBIL Evo SYBIL Evo quickly and easily tames excessive vocal sibilance (ess, tsss, ch, and sh sounds) with a flexible compressor and a variable-frequency high pass filter that ensures that you get optimum de-essing for any vocal performance. Details SYBIL Evo is a digital equivalent of a traditional vocal de-esser. It is extremely easy to use. Controls and indicators include: A flexible compressor with threshold, ratio, attack and decay controlsA variable-frequency sidechain high-pass filter that lets you fine-tune the sibilance reduction for each individual performance to ensure that only the unwanted sibilence is affected.A gain reduction meter that gives you a visual indication of the de-essing process and aids in the fine-tuning of the other controls. Registration InformationLicense: https://www.antarestech.com/software-download