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Showing posts with the label Signal Processing

Lowpass Filter With A Time-varying Cutoff Frequency, With Python

How to apply a lowpass filter, with cutoff frequency varying linearly (or with a more general curve… Read more Lowpass Filter With A Time-varying Cutoff Frequency, With Python

How To Find The Inflection Point In A Noisy Curve?

I have the the noisy curve defined by numpy 2D array: As you can see, it has the first flat segmen… Read more How To Find The Inflection Point In A Noisy Curve?

Downsample A 1d Numpy Array

I have a 1-d numpy array which I would like to downsample. Any of the following methods are accepta… Read more Downsample A 1d Numpy Array

Can I Use Autoregression Modelling For Signal Denoising?

As follows, my task is to use AR modeling to remove artifacts from noisy signals. Let's say I h… Read more Can I Use Autoregression Modelling For Signal Denoising?

Counting Data Points Within Limits, And Applying Buffer To Isolated Points [data Analysis]

I am stuck trying to solve this problem: I have a set of data points, that correspond to a set of t… Read more Counting Data Points Within Limits, And Applying Buffer To Isolated Points [data Analysis]

Python: Reconstruct Audio File From STFT

As a simple experiment, I want to compute the stft of an audio file: sample_rate, samples = wav.rea… Read more Python: Reconstruct Audio File From STFT

Match Length Of Two Python Lists

I have two Python lists of different length. One may assume that one of the lists is multiple times… Read more Match Length Of Two Python Lists