Description: Firstly， voice signal acquisition, play, analyze its spectrum to add noise to the signal source, and then play the audio spectrum analysis, and then were by IIR low-pass, band-pass filter and FIR low-pass, band-pass filters, respectively, play audio and get the spectrum after filtering.
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File list (Check if you may need any files):
设计\GUI界面设计.jpg
....\sheji.asv
....\sheji.fig
....\sheji.m
....\step1.asv
....\step1.m
....\step2.m
....\step3.asv
....\step3.m
....\step4.m
....\step5.asv
....\step5.m
....\step6.m
....\恒古的思念.wav
设计
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