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Open Cast

Cast docs

Cast is a podcast finisher: upload an episode and a minute later it plays you 30 seconds of it already edited, then transcribes the recording so you can cut the audio by editing the text, cleans up filler words, pauses and noise, generates the intro, outro and background music the episode needs — with a commercial licence — and exports one finished file at the loudness your platform expects.

Getting started

What Cast is, how your audio gets in, how you hear the finished version a minute after upload, and how an episode goes from raw take to finished, licensed, publishable file.

Editing the transcript

Edit the audio by editing the text: cut words, remove fillers, trim pauses, label speakers.

Bleeping & censoring

Bleep swearing, redact a name or a spoiler, and publish a clean version that stays clean in the audio and the captions — a dictionary scan for the swears, a manual bleep for the rest, all non-destructive.

Improving the sound

Noise, room tone and uneven levels — fixed without making you sound like a robot, and reversible if it does.

Music and sound effects

Generate music, bring your own, and add SFX.

Mixing

The Studio: lanes, clips, and music that gets out of the way of the voice.

Exporting and publishing

Platform-matched loudness, stems, captions and chapters — and the license record that goes with the episode.

Plans and credits

What each plan includes, and what actually costs credits.

Account and limits

Subscriptions, limits, and where Cast deliberately stops — and what picks up from there.

Automating with AI agents

Hand the first pass to Claude, Cursor, n8n or your own agent: connect it once, then ask for an episode in plain language. What it can do, what it costs, and what it will never spend without asking.

Troubleshooting

When something does not work, or does not sound right.

Coming soon

What we are building next. Nothing here is live yet — vote for the one you need, and subscribers on Plus or higher get it first.

How Cast compares

Where Cast fits against the other tools — including when to use one of them instead.

Glossary

The audio words that get thrown at podcasters, in plain language.

The Mubert ecosystem

One engine, four ways out. Which one you want depends on what you are walking away with.

Reading this as an agent? Every page is markdown at /docs/<slug>.md, the index is /llms.txt, and the whole thing in one file is /llms-full.txt.