Core Concepts

A quick map of how the app organizes your work, and how a chapter becomes audio.

How your book is organized

• Library: all your projects.
• Project: one audiobook, with its author, series and cover.
• Chapter: one division of the book, holding its text and audio.
• Segment: a sentence or paragraph in a chapter, the smallest piece of text the app stores.
• Chunk group: what you see in the Performance and Production tabs. One group can hold several neighboring segments that belong together.
• Character: a speaker you assign to lines. By default a chapter is read by the Narrator.

How voices are organized

• Voice: an identity you assign to characters.
• Variant: one style or mood of that voice, built from its own recordings.
• Sample: a reference recording used to clone the voice.

From text to audiobook

1. Analysis: the app looks for sentences over 500 characters and splits them.
2. Queuing: when you click Generate, the groups join the background queue.
3. Synthesis: each group is spoken by its assigned voice.
4. Baking: the finished groups are stitched into one chapter file, also saved as an M4A.
5. Assembly: the M4A chapters are joined into the final .m4b. Because they are saved, rebuilding is nearly instant.

Next

• Library and Projects
• The Voice Lab