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

使用matlab语言对一段语音信号进行滤波处理，首先分析时域信号，之后进行傅立叶变换，转换成频域，使用巴特沃斯低通滤波器去除高频部分。-Use matlab language of a voice signal is filtered first time domain signal after the Fourier transform is converted into the frequency domain, using a Butterworth low-pass filter to

低筒高通滤波器，可以实现不同的录波器，显示(Low pass high pass filter)