Creators and solopreneurs want to sell high-value digital products like audiobooks, podcasts, online courses with narration, and narrated training videos on Gumroad — but producing professional audio/video is time-consuming and expensive. This creates a perfect agency opportunity: use Typecast (for expressive TTS, voice cloning & talking avatars) with Descript (for AI-powered editing, Overdub cloning & text-based polishing). This guide shows how to launch a “Done-for-You AI Narrated Digital Product Agency,” delivering polished audiobooks/courses/videos on retainer or per-project for Gumroad sellers.

The audiobook market is booming, projected to exceed $35 billion by 2026, but authors and publishers face two major bottlenecks: high production costs and the time-intensive process of manuscript preparation and narration. This creates a premium service opportunity: leverage ChatGPT for rapid manuscript editing and adaptation, Speechify Studio for AI-powered, studio-quality voice-over creation, and ACX as the distribution and rights management hub. This guide will show you how to build a full-service “Audiobook Production Agency,” offering end-to-end packages that turn a raw manuscript into a bestselling audiobook on Audible, Amazon, and iTunes.