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Podcast narration AI

Produce emotionally directed podcast narration and host reads with Cast and Voice Designer.

Studio-feeling voice production at long-form API economics.

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How it works

  1. 1

    Design the voice

    Create a host, narrator, or branded voice with Voice Designer.

  2. 2

    Direct emotion

    Guide tone, pacing, emphasis, and delivery for each segment.

  3. 3

    Render long form

    Use Cast async synthesis for episode-scale audio, with commercial rights included.

Built on

CastCinematic, emotional long-form TTS for podcasts, narration, and audiobooks.SpeakSpeak - text-to-speech (TTS) that starts in milliseconds.

Common questions

Can I direct the performance?

Yes. You guide tone, pacing, emphasis, and delivery for each segment instead of accepting one flat read.

How do I create the host voice?

Design a host, narrator, or branded voice with Voice Designer.

Can I use the audio commercially?

Yes. Cast async synthesis renders episode-scale audio with commercial rights included.

Get an API key. Make a phone agent.

Sandbox keys never bill. Fund a live key when you go to production.

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