===========
DeSibilizer
===========

.. image:: screenshot.png

Block Diagram
=============

.. image:: block_diagram.png

Time-series Behavior
====================

.. image:: time-series-no-lookahead.png

.. image:: time-series-lookahead.png

Spectrogram
===========

.. image:: spectrogram.png

DeSibilizer analyzes input signal and show the result in spectrogram.

By dragging two horizontal bars, one can adjust frequency range of sibilant band, the frequency range that DeSibilizer try to detect sibilants.

White translucent box indicates the time span (horizontal) and the frequency range (vertical) that DeSibilizer applied reduction to signal.

.. image:: spectrogram-bands.png

Sibilant Detector
=================

.. image:: sibilant_detector.png

DeSibilizer shows detected sibilants level by height of graph.
Higher value indicates thah there is higher level of sibilants at the time point.

**Dark color time period** indicates that sibilant detected but not reduced.
**Bright color time period** indicates that sibilant detected and reduced.

By dragging horizontal bar, one can adjust the sibilant threshold, the level of sibilants that DeSibilizer starts reduction.


Main Panel
==========

.. image:: main_panel.png

**ENGAGE** button toggles plugin's bypass state.

**LOOKAHEAD** knob adjusts lookahead amount. For larger value, DeSibilizer starts to reduce sibilant signals before it begins.

**SENSITIVITY** knob controls the beavior of sibilant detector. Sibilant detector graph will show higher value for larger value of SENSITIVITY knob.
One can tweak the behavior of detection. In **FIXED** mode, DeSibilizer uses absolute threshold for sibilant detection.
In **ADAPTIVE** mode, DeSibilizer analyzes input signal and adjust threshold automatically.

**RANGE** knob controls the amount of reduction that DeSibilizer applies to signal of sibilant band.

**ATTACK** knob controls the time length from the beginning of reduction and the moment of full reduction.

**MAKEUP** knob controls the amount of gain applied to sibilant band.

**COMPENSATION BOOST** knob control the maximum amount of time-varied boost applied to total band.
The timing of boost is synchronized to reduction of sibilant band.

**OUTPUT GAIN** knob controls the amount of gain applied to total band.

One can choose monitoring component by **MONITOR** button group.

TOTAL
  The sum of sibilant band signals (with reduction if applied) and non-sibilant band.
IN
  Sibilant band signals.
OUT
  Non-sibilant band signals.
IN
  Sibilant band signals, only when reduction is actually applied.

Difference between normal and LL (low latency) versions
=======================================================

.. list-table:: Difference

   * - Feature
     - DeSibilizer
     - DeSibilizer LL
   * - Lookahead
     - Available
     - Not available
   * - Plugin Latency
     - 60.7msec
     - 0.67msec