Ravarcheon
/ spectralRotation.py
Last active
June 7, 2024 14:48
rotates an audio file by 90 degrees in the spectrum while being a reversible process with minimal loss (only floating point errors which are like -150 dB but thats literally silence ahaha~)
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| import numpy as np | |
| import soundfile as sf | |
| from scipy.fftpack import fft, ifft | |
| def rotateSignal(signal,flip): | |
| if flip: | |
| signal = signal[::-1] | |
| x = np.concatenate((signal, signal[1:][::-1])) # concatenating the array with a reverse of itself makes it such that the fourier transform doesn't layer over a reversed version of itself in the inverse fft | |
| rotSig = ifft(x) |