SOUND CLEANING METHOD AND APPARATUS

摘要

PURPOSE: A sound cleaning method and an apparatus thereof for generating noise masking effect by using interference sound are provided to effectively reduce a noise in which the celadon porcelain recognizes by supplying disturbing sound while removing the noise in the ambient space of the celadon porcelain. CONSTITUTION: A noise is inputted(S410). An offset wave having the size and the same anti-phase as the noise is created by using an active noise removing unit(S420). The amplitude of a wavelet between the canceling wave and the noise is calculated(S430). The disturbing sound of the amplitude which materially eliminates the amplitude of wavelet is generated(S440).