With the continuous advancement of my country\'s digitalization and informatization process, various libraries, museums and archives have successively started the digital preservation of precious historical collections. Due to the special nature of audio materials, audio materials need to be post-processed through modern scientific and technological means to restore their historical original appearance as much as possible and better serve future teaching and scientific research. This paper studies and explores the current audio noise types and various noise reduction methods, and comprehensively applies these methods in the wxWidgets-based audio repair tool MemoryAudio, providing various noise reduction expert templates, and achieving good noise reduction effects. This system also provides a standard interface for the continuous expansion of noise reduction algorithms in the future.
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