rubberband ☆

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Description:
Audio time stretcher tool and library

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Multimedia

Tags: audio processing pitch-shift time-stretch cli

Install: brew install rubberband

About:
Rubberband is a high-quality command-line utility and library for time-stretching and pitch-shifting audio files without affecting tempo or pitch independently. It utilizes advanced phase vocoder techniques to achieve professional-grade audio processing results. This makes it an essential tool for audio engineers and developers needing precise audio manipulation capabilities.

Key Features:

Real-time and offline processing capabilities
High-quality phase vocoder algorithm
Independent control of pitch and tempo
Command-line interface for scripting
Library for integration into other applications

Use Cases:

Adjusting the tempo of music tracks for DJ sets or remixes
Changing the pitch of audio samples for music production
Time-compressing audio for podcast editing
Analyzing audio signals in software development projects

Alternatives:

sox – SoX is a broader audio processing suite that includes time-stretching, but Rubberband is specifically optimized for high-quality pitch and time modification.
libsndfile – libsndfile handles audio file I/O but does not include DSP algorithms like time-stretching.

Version History

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