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endolith / frequency_estimator.py

Last active October 26, 2024 20:10

Frequency estimation methods in Python

	from __future__ import division
	from numpy.fft import rfft
	from numpy import argmax, mean, diff, log, nonzero
	from scipy.signal import blackmanharris, correlate
	from time import time
	import sys
	try:
	import soundfile as sf
	except ImportError:
	from scikits.audiolab import flacread

bearpelican / Roman2Symbol_test_case.ipynb

Created February 28, 2019 23:26

Chord change after adding: `scale = [s+sec_offset for s in scale]`

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yoyolicoris / differentiable_lfilter.py

Last active August 25, 2022 12:59

This lfilter can propogate gradient to filter coefficients.

	import torch
	import torch.nn as nn
	import torch.nn.functional as F
	from torchaudio.functional import lfilter as torch_lfilter
	from torch.autograd import Function, gradcheck


	class lfilter(Function):

	@staticmethod