Restoration VPI's  -  DeScratcher

DeScratcher is used to resolve large scratches up to 1000 samples. Transient disturbances with a length of more then 30 samples demand different audio algorithms than short crackles. DeScratcher is optimized to carefully remove large scratches without destroying the audio program.

The algorithm adapts automatically to the signal. The level at which the removal of scratches begins can be adjusted with the "Threshold" control, and the "Soft" control enlarges the detected range that should be interpolated by the algorithm. In order to help set the parameters correctly, a real-time display shows the detected scratches over a moving time line. More importantly, the "Audition" function permits the operator to 'solo' the removed disturbances in real-time, while changing the various parameters.

Manual Mode works in conjunction with the Steinberg WaveLab editor to perform real-time manual interpolation of selected areas.