Research on Audio Signal Denoising and Simulation Processing

This thesis mainly studies the denoising processing and simulation of audio signals, and comprehensively applies various basic knowledge of digital signal processing, and then performs spectrum analysis and filters on audio signals. This study uses the basic principles of digital signal science to realize the processing of audio signals, and comprehensively uses signal extraction, amplitude-frequency transform, fourier transform, filtering and other techniques to perform speech signal processing. For the study of speech signals, this thesis adopts the basic research method of designing FIR filter to achieve the purpose of denoising speech signals. Finally, the research conclusions are obtained by combining images and playback comparison of speech signals.