FIR low-pass filter design, to run through, can be obtained by varying the filter parameters, the number of filters of different orders, and added with the random noise of the speech signal through the filter will be greatly improved.

ditong - 副本\di.m
.............\di1.asv
.............\di1.m
.............\fir.emf
.............\fir1.emf
.............\fir2.emf
.............\fir3.emf
.............\fired1.emf
.............\fired2.emf
.............\fired3.emf
.............\lvhuo.emf
.............\lvqian.emf
.............\noise.wav
.............\prefir1.emf
.............\prefir2.emf
.............\prefir3.emf
.............\returnsignal.wav
.............\returnsingal.wav
.............\signal.wav
.............\signalhigh.wav
.............\signalin.wav
.............\signalnoise.wav
.............\singalin.wav
.............\singalnoise.wav
.............\Untitled.m
ditong - 副本

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