Audiblez: Generate Audiobooks, Convert eBooks to Audiobooks with Kokoro

General Introduction

Audiblez is an open source project designed to convert eBooks (e.g. .epub format) to audiobooks (e.g. .m4b format). The project utilizes Kokoro Audiblez is a high-quality speech synthesis technology that supports multiple languages and multiple voices. Users can convert eBooks to audiobooks for easy listening on a variety of devices with a simple command line operation.Audiblez was developed by Claudio Santini and is available on GitHub under the MIT license.

Function List

• eBook conversion: Convert eBooks in .epub format to audiobooks in .m4b format.
• Multi-language support: American English, British English, French, Korean, Japanese and Mandarin are supported.
• Multiple sound options: Provides a wide selection of naturalistic and realistic voices.
• Efficient conversion: Fast conversion process on modern computers.
• open source project: The code is publicly available and can be freely modified and distributed by users.

Using Help

Installation process

1. Make sure Python 3 is installed on your computer (Python 3.13 is not supported).
2. Install Audiblez using pip:

   pip install audiblez

3. Download the necessary files (approx. 360MB):

   wget https://github.com/thewh1teagle/kokoro-onnx/releases/download/model-files/kokoro-v0_19.onnx
wget https://github.com/thewh1teagle/kokoro-onnx/releases/download/model-files/voices.json

4. Make sure ffmpeg is installed to generate .m4b files.

Usage Process

1. Convert .epub files to audiobooks:

   audiblez book.epub -l en-gb -v af_sky

This command generates several .wav files in the same directory, and finally a .m4b file that can be played using VLC or any audiobook player.

Detailed steps

1. Select Language: Use -l option specifies the language code, e.g. en-us(American English),en-gb(British English),fr-fr(in French),ja(Japanese),kr(Korean) and cmn(Mandarin).
2. Selecting a sound: Use -v option specifies the sound, e.g. af_sky,am_adam,bf_emma etc. It can be found in the Kokoro-TTS On the audition.
3. conversion process: After running the conversion command, Audiblez will first split the .wav files into multiple chapters, and then merge them into a single .m4b file.

typical example

Suppose there is a book called example.epub eBooks that want to be converted to British English audiobooks and use the af_sky sound, the command is as follows:

audiblez example.epub -l en-gb -v af_sky

When the conversion is complete, it generates the following in the same directory example.m4b Documentation.