aXDeesser

De-esser plugin specifically designed to work with Ambisonics and preserve the spatial balance.

Ambisonic de-esser plugin

aXDeesser is an ambisonic de-essing plugin that can be used on any AmbiX-format (SN3D/ACN) Ambisonic signal. It works like a traditional de-esser but the sibilance band compression can be side-chained by pointing a virtual microphone to any point in your immersive scene. aXDeesser also allows you to select the direction you want to focus on for activating the de-essing effect, so the compression will only be activated when level of the signal picked up by the virtual mic is above the threshold.

Maximum Ambisonic order will depend on DAW compatibility.