numq/stretch

Library for time stretching audio without changing pitch

Stretch

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Audio stretching library for JVM based on the C++ library signalsmith-stretch

See also

• Voice Activity Detection to extract speech from audio

• Speech recognition to transcribe audio to text

• Speech generation to generate voice audio from text

• Text generation to generate text from prompt

• Noise reduction to remove noise from audio

Features

• Stretches PCM audio data
• Supports any sampling rate and number of channels

Usage

See the example module for implementation details

1. Download latest release
2. Add library dependency

   dependencies {
       implementation(file("/path/to/jar"))
   }

3. Load binaries

   Stretch.Signalsmith.load(libstretch = "/path/to/stretch-signalsmith")

4. Instantiate a library

   Stretch.Signalsmith.create(sampleRate = sampleRate, channels = channels, playbackSpeedFactor = defaultPlaybackSpeedFactor)

Requirements

• JVM version 9 or higher.

License

This project is licensed under the Apache License 2.0.

Acknowledgments

• signalsmith-stretch