The Fast Fourier Transform (FFT) is a powerful tool for analyzing signals in the frequency domain. Python and SciPy provide an easy way to perform FFTs. To use SciPy, the following code can be used: ...

y =np.sin(2.0*np.math.pi*freq*t) #y = np.sin(2.0*np.math.pi*freq*t) + np.sin(np.math.pi*freq*t) merged=np.c_[freq,np.sqrt(sp.real**2+sp.imag**2)] # this is how two np arrays are merged (the first ...

(load "fft/fft_demo.lsp") ;; you must load the code before calling functions (hp-test) ;; simple high-pass by zeroing low frames (mod-test) ;; FM cross-synthesis (mod ...