This a Digital Signal Processing project that filter a courrupted signal by blue noise using Low Pass Filter. Several LPF designs is included in the code. -This is a Digital Signal Processing project that filter a courrupted signal by blue noise usin

对原始语音进行上采样和下采样，分析对比他们的时域图和频谱图。最后对比原始语音、75HZ激励、150HZ激励以及噪声激励下的效果-SOME SIMPLE MANIPULATIONS OF SOUND USING DIGITAL SIGNAL PROCESSING The original sound and its spectrogram Downsampling the waveform downsampling Upsampling the waveform Li

this is about digital signal processing, about filter the unwanted noise for the sound -the unwanted noise will remove when apply two filter on the matlab. using the filter to filter on the noise.