A JavaScript library for manipulating WebAudio Contexts, specifically for handling key changes

STFT based real-time pitch and timbre shifting in C++ and Python

Pitch-shifting and time-stretching with TD-PSOLA

Official JUCE plugin for stftPitchShift

Standalone real time dynamic vocal harmonizer

A kind of MIDI-controlled polyphonic vocal harmonizer

Demucs wrapper for remixing audio files with additional customizations

Fork of Soundtouch (https://codeberg.org/soundtouch) with extra features and fixes

Fork of the SBSMS time stretching and pitch shifting library

probably😗 real-time pitch shifting and formant adjustment by rubberband library

Python module for adding harmony lines to recorded melodies

Live pitch-shifted karaoke for Windows. preview≡export is a required CI gate. Browser web demo (AudioWorklet + LGPL SoundTouch). Match-my-key mic auto-detect.

CovidCoughNet: A new method based on convolutional neural networks and deep feature extraction using pitch-shifting data augmentation for covid-19 detection from cough, breath, and voice signals

Swift audio streaming player for iOS and macOS with AVAudioEngine, time/pitch control, silence skipping, metadata, and async event observation.

a badly implemented pitch-shifter & time-stretcher for wav files

Open-source Python live sampler, automatic drum-kit builder, and MIDI sample instrument. Records or imports any audio, fingerprints each sound across 58 acoustic dimensions, and maps them to MIDI notes by similarity - automatically, in real time.

Real-time system-wide pitch shifter for macOS. Retune all audio to 432 Hz, Baroque pitch, or any frequency from the menu bar. No drivers needed.

Real-time formant-preserving voice processing framework. CPU/HIP/Vulkan backends, stable C ABI for game engines, VST3 plugin, Python bindings. GPL-3.0.

An attempt to time stretch and pitch shift preserving formants via Time-Domain Pitch-Synchronous Overlap and Add

Polyphonic audio time-stretcher and pitch-shifter using Phase Gradient Heap Integration