Waves BSS DPR-402
User Guide
14
3.2 De-Essing
The DPR-402 has three modes of de-essing available. The choice of mode depends on the
source material and the goals of the processing.
De-Essing Wide with Full Dynamic Control
In this mode, the de-esser detects only high frequencies, using a filter on the sidechain, but it
compresses the entire wide band of the signal. Usually this produces a natural-sounding
compression, but it can also result in compressing parts of the signal that are below the set
frequency. This may cause unwanted information to be attenuated. Should you encounter
undesired effects or artifacts, it is likely that the attack and release settings need to be adjusted.
De-Essing HF with Full Dynamic Control
In this mode, the de-esser splits the signal into the sibilance part and the non-sibilance part of
the audio. The sibilance part is sent to compression while the non-sibilant part is not. After
compression, the two parts are summed to recreate the wideband signal with attenuated
sibilance. This method provides more control over sibilance compression. This also allows more
compression of the sibilant part without changing the other ranges of the signal. However,
introducing a filter may create a phase shift, which can result in artifacts when the two signals
are summed together.
De-Essing Wide with Simultaneous Compression
In this mode, the de-esser detects only high frequencies, using a filter on the sidechain, but it
compresses the entire wide band of the signal. Usually this produces a natural-sounding
compression, but it can also result in compressing parts of the signal that are below the set
frequency. In this mode, the de-e
sser’s ratio, attack and release are pre-determined.
