How to Turn a Newsletter Into a Podcast With AI
The short answer: rewrite your issue for the ear, generate the narration with a text-to-speech tool, fix the mistakes in a text-based audio editor, and publish it through a podcast host. A one-person setup needs only those four steps.
The rewrite matters most. Skip it, and even a good voice sounds like a machine reading a web page.
A note before you start: this is a planning guide, not a review. I have not finished my own end-to-end test of this workflow yet, so it contains no test results and no recommendation to buy anything. The tool details below come from each company's documentation. When my test is done, I will add the numbers here.
Who this suits
This workflow fits you if you already publish regularly, your writing is mostly explanation or analysis, and you want more reach without recording every week.
Skip it if your audience follows you for your own voice and personality. A synthetic voice can feel like a bait-and-switch there. Tell listeners plainly when a narration is generated. Readers notice when a creator stops being present, and they are right to ask.
It also suits writing built on arguments better than writing built on visuals. Charts, screenshots, and code do not survive the move to audio. They need a spoken summary.
The workflow
1. Choose issues that work as audio
Start with an evergreen issue that does not lean on tables or images. A piece that makes one clear argument should convert best. Link roundups are usually a poor fit, since a list of links has no thread for a listener to follow.
2. Rewrite for the ear
This is where AI assistants help. Ask one to adapt the issue for spoken delivery with these instructions:
- Split long sentences so each one fits in a single breath.
- Replace "as shown below" and "see the link" with spoken equivalents.
- Describe any chart in one sentence, stating what it shows and why it matters.
- Spell out abbreviations and numbers the way you want them read.
- Add a short spoken intro and a closing line pointing to the newsletter.
Then read the script out loud yourself. You will catch the phrases that look fine on a page and sound wrong in a room.
3. Generate the narration
Paste the script into a text-to-speech tool. ElevenLabs is one option. Its documentation describes a shared voice library as well as voice cloning, and it says clones are restricted to your own voice.
Work in short sections instead of one long file. If one sentence comes out badly, you can then regenerate that section without losing the rest.
4. Clean up the audio
Generated audio still needs a human pass. Listen for mispronounced names, odd pauses, and flat emphasis on the point that matters most.
Descript is one option here. Its help center describes editing audio like a document: when you delete a word from the transcript, that word is removed from the audio. That suits this job, because you can cut a bad line and drop in a regenerated section.
Add a short music bed only if it helps. A clean voice track is better than a busy one.
5. Publish and connect it to the newsletter
Upload the episode to your podcast host, then embed it at the top of the matching newsletter issue. Mention it once in the next few issues. Your existing readers are your first listeners.
What to measure on your first episode
Convert one real issue before you commit to a paid plan or a weekly schedule. Write down these numbers as you go:
- Length: the original word count and the final audio length.
- Time: your total working time, including the rewrite and the listening pass.
- Cost: what you paid, and how much of your plan's allowance one issue used.
- Errors: mispronounced words, pacing problems, and how many sections you had to regenerate.
- Reaction: what at least three real readers said after listening, including anything negative.
If one episode takes longer than recording it yourself would, or readers find it off-putting, stop there. You will have learned that cheaply.
Limitations
Synthetic narration can flatten humor and sarcasm, and unusual names often need correcting. Costs can rise with volume, so check your plan's limits against your real word count before you commit. Read the current pricing page yourself, since plans change.
Audio also creates a second thing to maintain. If you correct an issue after sending it, the episode is now out of date.
The simplest alternative
You can record it yourself. A basic USB microphone, a quiet room, and free software such as Audacity will get you a listenable show. Your own voice may also build a stronger bond with listeners than a generated one, and it is the fairest thing to compare your AI version against.