Obi 4.1 is released!


Dear all,

We are pleased to announce the latest release of Obi, the popular open source navigable audio book creation tool. Obi produces books conforming to the accessible EPUB 3, DAISY 3 and DAISY 2.02 specifications.

Version 4.1 is an incremental release that implements first set of features requested by DAISY community in the Obi-Tobi survey 2017. It brings enhancements to the existing features like importing audio files in existing structure of sections, calculation of total duration of audio content in a set of contiguous phrases, execution of audio processing and Renumber pages commands on phrases spanning multiple sections, indication of sections with no audio in Multi-section Operations dialog along with other improvements. This release initiates the incorporation of requested features; the implementation of major features is planned for next year’s releases.

New Obi also presents updates to language packs for French and German. Many thanks to the following organizations and individuals for translations:

  • European Digital Reading Lab for French
  • Hermann Dermal (atz) for German

Please visit the Obi project area to check out the full list of features and bug fixes:

Download Version 4.1 at

We would like to extend a special "thank you" to all contributors and supporters for their valuable feedback and support.

With regards
Obi-Tobi Team