Removing Crackle from an LP Record via Wavelet Analysis

Pavel Rajmic; Jaroslav Klimek
DAFx-2004 - Naples
The familiar “crackling” is one of the undesirable phenomena which we deal with in an LP record. Wavelet analysis brings a new alternative approach to the removal of this feature in the restoration process of the recording. In the paper, the principle of this method is described. A theoretical discussion of how the selection of the wavelet basis affects the quality of the restoration is also included.