

Audiblez
Overview :
Audiblez is a tool that leverages Kokoro's high-quality speech synthesis technology to convert standard eBooks (in .epub format) into .m4b format audiobooks. It supports multiple languages and voices, allowing users to complete the conversion through simple command-line operations, greatly enriching the eBook reading experience, especially in situations where reading isn't convenient, such as while driving or exercising. This tool was developed by Claudio Santini in 2025 and is open-source under the MIT License.
Target Users :
The target audience includes eBook enthusiasts, commuters, fitness lovers, and individuals with visual impairments. For those who wish to enjoy book content in situations where reading is not possible, audiblez offers a convenient solution, allowing them to access knowledge and entertainment through listening anytime, anywhere.
Use Cases
User A used audiblez to convert an English eBook into an audiobook during their commute, making productive use of their time by finishing a professional book and enhancing their knowledge.
User B, a fitness enthusiast, converted a favorite novel into an audiobook with audiblez and enjoyed listening while running, enriching their workout experience.
User C, who has visual impairments, leveraged audiblez to convert eBooks into audiobooks, rediscovering the joy of reading and independently enjoying literary works.
Features
Supports conversion of .epub format eBooks to .m4b format audiobooks.
Utilizes the Kokoro v0.19 text-to-speech model for natural and fluent output.
Supports various languages including American English, British English, French, Korean, Japanese, and Mandarin.
Allows adjustment of audio generation speed within a range of 0.5x to 2.0x.
Offers multiple voice options, such as af_sky and am_adam.
The generated audiobooks can be played using VLC or other audiobook players.
How to Use
1. Ensure that Python 3 is installed on your computer (Python 3.13 is not supported).
2. Install audiblez using pip: pip install audiblez.
3. Download additional files: wget https://github.com/thewh1teagle/kokoro-onnx/releases/download/model-files/kokoro-v0_19.onnx and wget https://github.com/thewh1teagle/kokoro-onnx/releases/download/model-files/voices.json.
4. Place the .epub file you want to convert in a designated folder.
5. Open the command line and enter the command: audiblez book.epub -l language_code -v voice_code, for example, audiblez book.epub -l en-gb -v af_sky.
6. Wait for the conversion to finish; the generated .m4b file can be played using VLC or other media players.
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