Audiobook production is usually driven by the finished audio length and the production model. Narration, recording, editing, mastering, pickups and quality control should be clearly separated in the proposal.
Finished-hour length
Longer books create more narration, editing and quality-control work. A manuscript word count can be used to estimate the likely finished length.
Narrator selection
Narrator experience, performance requirements, character voices and exclusivity can affect cost and availability.
Delivery specifications
Confirm the required file specification, chapter structure, sample, cover artwork and distribution-ready metadata before production begins.