Definitions for "De-esser"
Signal processor that filters/EQ's the signal so that there is less sibilance ("S" sounds). see also sibilance
a compressor/limiter with a frequency sensitive detector circuit, so that it
a compressor that employs band-pass filters to compress only the frequencies contained in the letter 'S', which in most people's speech contains more energy than the rest of their speech and so tends to pose a problem in radio or recording vocals
In audio software, the de-esser is used to "sharpen" hissing noise without destroying the overall sound of the recording.
Keywords:  arsenal, fig, tool, engineer, lives
a tool that lives in every VO engineer's arsenal (see Fig