Open-source alternatives to AudioTK

Non Stationary Gabor Transform (NSGT), Python implementation

Pydub is a Python audio manipulation library and digital audio processor used for editing, slicing, and converting audio files and segments. It serves as a programmatic wrapper for FFmpeg to import and export a wide variety of audio formats. The library functions as an audio signal generator capable of creating synthetic waveforms, such as sine waves and white noise. It also provides tools for digital signal processing, including the application of filters, fades, crossfades, and gain adjustments to sound signals. Its broader capabilities cover programmatic audio editing through concatenatio

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A real-time audio time-scale modification library

A fast MDCT implementation using SciPy and FFTs

STFT

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A Python library aimed at acousticians.

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tftb (Time-frequency toolbox) is a Python module for time-frequency analysis and visualization build with SciPy and matplotlib.

Matchering is an audio mastering tool and Python library designed to match the frequency balance and loudness of a target track to a specific reference track. It functions as a reference-based mastering system that aligns a target signal's spectral envelope, RMS, and peak amplitude with those of a chosen reference file. The project utilizes a multi-stage processing pipeline featuring an FFT spectral matching engine to adjust frequency response. It ensures output quality through the use of a brickwall limiter to prevent signal clipping while preserving the original waveform shape. The tool pr

A python wrapper for rubberband.

Sound Field Synthesis (SFS) Toolbox for Python

Efficient sample rate conversion in Python.

Gammatone-based spectrograms, using gammatone filterbanks or Fourier transform weightings.