LibreAI / Audio / librosa
// audio · librosa/librosa

librosa

librosa is an open-source audio project by librosa (librosa/librosa on GitHub). It has 8,647 GitHub stars and 1,080 forks, is released under the ISC license, and was last updated on GitHub on 29 September 2026.

Python library for audio and music analysis

★ 8.6k stars⑂ 1.1k forksISCupdated 2026-09
▦ visual — this project's README ships no embeddable screenshot,
so here's a placeholder. The guide below is complete regardless.
// project facts

Project facts

Repository
librosa/librosa
GitHub stars
8,647
Forks
1,080
License
ISC
Last updated on GitHub
29 September 2026
Category
Audio
Listing
Full install guide
Official site
Official site
// how it works

How it works

  1. Pick the job

    Transcription, synthesis, voice changing, or editing — each tool here majors in one.

  2. Install and set up

    Binaries, pip packages, or Docker; models download on first run for AI tools.

  3. Feed it audio or text

    Drop in a recording or type what you want spoken.

  4. Export the result

    WAV/MP3/OGG outputs drop straight into editors or apps.

// features

Why people love it

Audio-focused

Purpose-built for audio work with format support that just works.

Made for music

Workflows tuned for musicians and producers, not generic audio.

State-of-the-art models

Whisper-grade transcription and natural neural voices, free.

Offline capable

Many run fully on-device — nothing you say leaves the machine.

Free for products

Open licenses let you ship voice features without per-minute API bills.

Scriptable

CLI and Python APIs slot into larger pipelines.

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// run it

Run it yourself

  1. Step 1 — Clone the repo

    Download the source and move into the project folder.

    git clone https://github.com/librosa/librosa.git
    cd librosa
  2. Step 2 — Check the README

    Every project documents its own setup; start with install requirements.

    cat README.md | head -60
  3. Step 3 — Run it

    Follow the project's launch command — Docker, pip, npm, or a binary release.

    # see README for the exact launch command
// use cases

What you can build

  • Transcribe meetings, lectures, and interviews.
  • Generate voiceovers without a studio.
  • Clone voices for dubbing and accessibility.
  • Clean up and edit recordings.
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// faq

Questions, answered

Who maintains librosa?

It is an open-source project at librosa/librosa with 1,080 forks. Check the repo's contributors and recent commits to see how active maintenance is.

Is librosa free for commercial use?

Licensed under ISC — check the repo for commercial-use terms.

Does it work offline?

Most of these run fully offline after the model download.

Can I use the voices commercially?

Check each license — many allow it, but voice-cloning has ethical and legal boundaries.

How accurate is the transcription?

Whisper-class models rival paid services on clear audio; noisy recordings need cleanup first.

// keep exploring

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// alternatives

Alternatives in Audio

The most-starred other Audio projects in the LibreAI catalogue — the realistic shortlist if librosa is not the right fit.

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  • GPT-SoVITS★ 62.3k

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// more in audio

More in Audio

Nearby Audio projects in the catalogue, closest in stars to librosa — keep exploring the shelf either side of it.

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  • EmotiVoice★ 8.5k

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  • RealtimeSTT★ 10.2k

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  • vits★ 7.9k

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  • Mozilla TTS★ 10.2k

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  • MeloTTS★ 7.7k

    MeloTTS — multilingual text-to-speech for English, Spanish, French, Chinese, Japanese and Korean.

Get librosa

Free and open — grab the source, star the repo, and start creating.