mana a5632645
ravarcheon
/ spectralRotation.py
Last active
March 10, 2026 13:00
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) |
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| #pragma once | |
| #include <cmath> | |
| /** | |
| State variable filter (SVF), designed by Andrew Simper of Cytomic. | |
| http://cytomic.com/files/dsp/SvfLinearTrapOptimised2.pdf | |
| The frequency response of this filter is the same as of BZT filters. |
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| =========================== | |
| SID FILE FORMAT DESCRIPTION | |
| =========================== | |
| AUTHORS: | |
| Michael Schwendt (PSID v1 and v2) | |
| Simon White (PSID v2NG, RSID) | |
| Dag Lem (PSID v2NG) | |
| Wilfred Bos (PSID v3, RSID v3, PSID v4, RSID v4) |
sixtenbe
/ analytic_wfm.py
Last active
October 22, 2025 04:06
— forked from endolith/peakdet.m
Peak detection in Python
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| #!/usr/bin/python2 | |
| # Copyright (C) 2016 Sixten Bergman | |
| # License WTFPL | |
| # | |
| # This program is free software. It comes without any warranty, to the extent | |
| # permitted by applicable law. | |
| # You can redistribute it and/or modify it under the terms of the Do What The | |
| # Fuck You Want To Public License, Version 2, as published by Sam Hocevar. See |