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LinguaLibre – Massive Open Audio Recording system
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Latest commit 2589dae May 28, 2018

(DEPRECATED) This project is the (now archived) 2016-2017 version

You can find the current version on

Lingua-Libre – Massive Open Audio Recording is an opensource platform and webapps created to ease mass recording of texts into clean, well cut, well named and apps friendly audio files. It is designed from the start to ease the creation of consistent datasets of audio files. We believe it is the best tool available to create dataset from few dozens to several thousands audios files. Recording productivity can reach up to 1000 audio recordings / hour, given a clean words list and an experienced user. Lingua-Libre is funded by Wikimedia France and actively used by the Wikimedia community.


  • PHP 5.5
  • Composer 1.2
  • Symfony 1.5
  • MySQL 5 , one instance

Installation & Development

In order to create a level playing field for development this project uses docker & docker-compose, as well as composer for dependency management.

Install PHP dependencies

docker run -it --rm --user $(id -u):$(id -g) -v "$PWD":/app -v ~/.composer:/composer -w /app composer composer install

Start-up the system

export UID && docker-compose up

This will keep stay attached to your command line and show you useful debug information. The application should now already be available in your browser at http://localhost:8000.

Use a second command line and continue with the following commands to complete installation.

(Re-)Create Database

docker-compose exec app /code/bin/console doctrine:database:create --if-not-exists
docker-compose exec app /code/bin/console doctrine:schema:update --force
docker-compose exec app /code/bin/console doctrine:fixtures:load

Build the Javascript files

make -C web/js common.js

Technical todos

Hard dependencies

The following dependencies exist in the code and are yet to be addressed in the development environment or, at least, the README (e.g. required version).

Javascript build process

Currently the Javascript (web/js/common.js) is build using make. This is an anachronism to say the least. Switching to a more modern tool, like e.g. grunt, would resolve the hard dependency to both make and yui-compressor. Additionally, the jQuery file now commited into this repo (web/js/vendor/jquery-3.2.1.min.js) can then be replaced by Javascript package management (e.g. npm).


  • Shtooka Recorder (2010) by Nicolas Vion - a notable desktop software which had a deep impact on the open audio reccording ecosystems. Hundreds of applications use data produced by this software.
  • SWAC Recorder (2013) by Nicolas Vion - a revamp of the earlier, less known but easier to install, with better user experience.
  • Lingua-Libre (2016) by Nicolas Vion - a cloud variation of the earlier versions, the project was funded by Wikimedia France, and create with feedbacks from local linguistic academics. The grant is associated with the project to reccord and preserve dying French minorities languages, but can be used for all languages around the world, as well as to reccord the voice of your important love ones. The clean, sharp, net audiofiles outputed ease the creation of various derivated applications.


In order to provide very consistent, app-friendly files, the current functionality are :

  • easy usage without downlaod nor installation, via
  • speakers' profiles, with language, gender, age, origin and few other data recommended to us by linguists.
  • wordlist support
  • intuitive interface with audio curve went speaking
  • roll back capability
  • auto roll-back / do-again when saturation is detected
  • consistent cut before / after the said words
  • auto equalization for sound's level
  • Download all audios by one speaker #2

Wishlist (primary) :

  • English UI #13
  • OAuth login #31
  • Auto-upload to commons #33

Wishlist (secondary) :

  • Noise reduction #29
  • Fade-in / fade-out #40

Equipment (recommendation)

  • Silent room / Recording studio
  • 1 x Scarlett2 Solo Studio Pack 2nd Generation, comprising portable :
    • 1 x microphone
    • 1 x headset
    • 1 x external sound card
    • 1 x cables
  • Microphone's addons :
    • 1 x Pod / Arm stand
    • 1 x Anti-pop filter
    • 1 x Anti-vibration system
  • 1 x modest PC (audio recording chain is external)
  • Internet connexion

Cost : US$250 for external audio equipments + US$300 for optional PC = 250 ~ 550US$.

Audio hardware

Working process

  1. Data gathering : prepare a text file with a list of words/sentences, one by line.
  2. Speaker : find a willing speaker
  3. Facility : find a calm studio or room
  4. Hardware installation : install the equipment in the room so to work comfortably
  5. Software settings: connect to's studio, edit the settings according to your needs
  6. Recording : start your high quality massive audio recording. 1000~1500 items per half day is fair.
  7. Applications : be creative, invent your apps ! :D

Schematic image


  • GNU GENERAL PUBLIC LICENSE -- thanks to a Wikimedia-France's funding.

See also authors.