Python: Audio filter design

Python: Audio filter design

Kevin Ostheimer Kevin Ostheimer

Kevin Ostheimer

Product Owner for ML/AI-driven cloud infrastructures

发布日期: 2023年11月2日
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?? Just designed a 3rd-order Butterworth and Chebyshev Type I filter for a 22kHz audio signal with an 8kHz cutoff! ?? Plotted their frequency responses in dark mode for a sleek look. Loving the sharp cutoff of the Chebyshev and the smooth Butterworth curve. ?? It is fascinating to observe the variances in their conduct, particularly in proximity to the cutoff. #AudioEngineering #SignalProcessing ??

Filter frequency response 8kHz

Denoising a signal by using the Butterworth filter

??? Now design a zero-phase Butterworth filter for an audio signal in Python! ??? The result? A smoothed sinusoidal wave without any phase distortion. ???? Check out my plots with a sleek dark mode theme! #SignalProcessing #Python #DataScience #AudioEngineering ????

Filter with zero-phase error

The Github-Repo with those two can be found here: https://github.com/Impulsleistung/signalProcessing/tree/main/processor

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