The Oxford DeClicker from Sonnox is a plug-in that removes short duration noise events from audio material using advanced algorithms that results in a high quality of repair. The plug-in features three main sections - DePop, DeClick and DeCrackle, with each sections dealing with events that are up to 10mS, 3mS and 0.4mS in duration respectively.
Each of these sections has a threshold and sensitivity control, and an excitation profile which shows the residual signal left after harmonic content is removed. The excitation profile represents how much the signal deviates from the predicted signal. The threshold controls determine how many events are detected, and the sensitivity controls determine how many of those detected events go on to be repaired.
- Important visual display, showing events as they are being detected
- Events are shown with duration along the X-axis and amplitude/energy along the Y-axis
- The graph shows green bubbles (DePop), blue bubbles (DeClick) and white bubbles (DeCrackle)
- The size of the bubbles indicates how loud they are, as does their height above the horizontal axis
- Each section has an IN button, and if a section is disabled using the IN button, their bubbles are displayed as Red, meaning these events have been detected but not repaired
- Enables the exclusion of detected events from the repair section
- Aids in finding the right compromise between removing unwanted noise and leaving the desired remaining audio intact without too much loss of high frequency content
- Simply draw a box around the area on the graph to exclude any events that should not be repaired
- Enables two independent banks of controls to be set up differently for dialogue and background
- Provides control by allowing the setting of a threshold which determines an "above set" and a "below set" which can be controlled quite independently
- Side-chain filters can further help define the threshold between above and below sets
- The listen section of the Output Panel labeled "Diff" contains an option to listen to the difference between the input and the processed output
- Particularly useful for hearing what has been repaired, and for listening to the quality of the repairs without being distracted by the audio material