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cheatsheet-tldr/tldr/m4b-tool
2026-03-21 00:26:22 +00:00

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---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# m4b-tool
> Merge, split, and manipulate audiobook files with chapters.
> More information: <https://github.com/sandreas/m4b-tool>.
- Create an audiobook with the audio files in the input directory:
`m4b-tool merge {{path/to/input_directory}} {{[-o|--output-file]}}={{path/to/merged.m4b}}`
- Make chapters using the input files' names:
`m4b-tool merge {{path/to/input_directory}} {{[-o|--output-file]}}={{path/to/merged.m4b}} --use-filenames-as-chapters`
- Split an audiobook into separate files by chapters:
`m4b-tool split {{path/to/audiobook.m4b}} {{[-o|--output-dir]}}={{path/to/output_directory}}`
- Split an audiobook into MP3 files:
`m4b-tool split {{path/to/audiobook.m4b}} --audio-format {{mp3}} {{[-o|--output-dir]}}={{path/to/output_directory}}`
- Adjust chapters using silence detection:
`m4b-tool chapters {{path/to/audiobook.m4b}} --adjust-by-silence`