An audiobook generator from company documents, without hallucination
Procedures and training turned into an audiobook to listen to in the car, recorded with a voice clone, with a hard check that the content sticks to the source.
Industry: Training, company knowledge, content
In short
- A source document turned into a ready audiobook
- Recorded with a voice clone (a consistent, recognizable narrator)
- Quality control: source anchors + transcript verification (Whisper)
- A branded PDF with the transcript included
About the project
Companies have procedures, training and knowledge locked in PDFs no one reads. The same material as audio can be absorbed in the car or on a walk.
The challenge
Simply dropping text into an AI narrator has two traps: a synthetic voice and the risk that the summary adds something the document didn't say. A process was needed that sounds good and doesn't make things up.
Goals
- Turn company documents into an audiobook that's easy to listen to
- Keep a consistent, recognizable voice
- Guarantee the content sticks to the source
- Also deliver a transcript as a branded PDF
Technical challenges
A summary faithful to the source
The material is summarized in its own words, but with anchors to the source, so no facts appear from outside the document.
A natural, consistent voice
Speech synthesis with a voice clone, so the audiobook sounds like a specific narrator, not a robot.
Quality control
Automatic verification: checking the source anchors and comparing the recording with the text (Whisper) before the material is handed over.
Solution and implementation
Pipeline: document to audio
From a document comes a summary faithful to the source, then a recording with a voice clone, and finally quality control.
Audio plus transcript
A branded PDF with the transcript is included, so the material can be both read and listened to.
Results
Knowledge people actually listen to
Procedures and training become an audiobook to absorb in the car instead of sitting in a PDF.
No making things up
Quality control ensures the content doesn't drift from the source document.
Takeaways
Good audio is a process, not one button
The value is in the quality control and fidelity to the source, not in merely turning text into speech.
Scope
- AI summary
- Speech synthesis
- Quality control
- Branded PDF
Technologies
- LLM (summary)
- ElevenLabs (voice clone)
- Whisper (QA)
Frequently asked questions
What does it do?
It turns company material into a chaptered audiobook, to listen to in the car for example.
Does the AI make things up?
No. It is a faithful summary in its own words, keeping to the source.
Who narrates?
A cloned-voice narrator, split into chapters.
What is it useful for?
For training, procedures and materials that are easier to absorb by listening.
What format?
An audio file with chapters, ready to play on a phone.