Declicker repairs clicks, pops and other impulse noises in the audio waveform.It has two modes: Manual and Automatic. In Manual mode, the user selects a distorted click on a waveform (typically, very short: below 10 ms), and uses Apply button to interpolate a single selected click. In Automatic mode, the program automatically detects and interpolates clicks in a long selection.
Automatic Mode Controls:
Quality - controls the interpolation processing quality.
Sensitivity - controls the amount of clicks that are detected and repaired. Low values of this parameter will remove fewer clicks, while higher values can repair too many intervals which can result in distortion.
Maximum click width - selects the maximum expected duration of a single click in milliseconds.
Low values of this parameter will optimally find only short clicks. Too high values of this parameter may cause lower reliability and precision of detection. If the clicks in the recording are of diverse durations, we recommended starting with removing shortest clicks and then proceed with removal of longer clicks.
Quality - controls the interpolation quality.
Manual Mode Controls:
Residual output - outputs the difference between the original and processed signals (suppressed clicks)
Interpolation order - selects the number of surrounding samples that are directly used to produce the interpolated samples.
Number of iterations - affects quality of results. Usually higher number of iterations produces smoother results. (advanced mode only)
Typically higher order can represent more signal harmonics in the interpolated region resulting in better quality, but sometimes high-order interpolation can produce pops when used on very simple or noise-only signals.
Autocorrelation length - selects the size of the surrounding region (in milliseconds) used for learning a signal model for interpolation. (advanced mode only)