Deesser
Deesser is an audio processing tool designed to reduce sibilance in audio recordings, most commonly on vocal tracks. Sibilance refers to the harsh hissing sounds produced by consonants such as s, z, sh, and ch, which can become prominent after recording or during loud passages. A deesser attenuates energy in a narrow high-frequency range where sibilants reside, typically around 5 kHz to 8 kHz, though exact frequencies vary by voice and style.
How it works: A deesser monitors a target frequency band or uses a sidechain fed from the
Types: De-essers can be standalone hardware units, software plugins, or features of dynamic EQs and multiband
Applications and considerations: Common in mixing and mastering vocal tracks to improve intelligibility and reduce listener