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πŸ‘₯ Voice & TTS Glossary

What is Multi-Speaker Text to Speech?

Multi-speaker text to speech voices a whole conversation: each speaker in the script gets their own AI voice, in one audio file.

πŸ“– 5 min readUpdated October 2026

The Simple Definition

Multi-speaker text to speech (multi-speaker TTS) converts a script with two or more speakers into a single audio file, giving each speaker a distinct voice. Instead of generating each line separately and stitching them together, the conversation is performed as a conversation, with natural turn-taking and reactions.

How the Script Is Formatted

Each line starts with the speaker's name and a colon. Every distinct name gets its own voice. Plain Latin letters for names work best (Lucia rather than LucΓ­a).

Why It Sounds Better Than Separate Lines

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Turn-taking β€” Speakers react to each other, so answers sound like answers.
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Shared mood β€” If one speaker gets excited, the other can respond to it.
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One file β€” No editing to line up separate clips.

What It Is Used For

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Podcasts β€” Two hosts or a panel discussion.
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Language lessons β€” Listening dialogues with a teacher and role-play characters.
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Audio drama β€” A narrator and a full cast.
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Training β€” Sales and support role-plays.

A two-speaker script

Host: Welcome back! Today we're asking one question: is coffee bad for you?

Guest: [laughing] I was hoping you wouldn't ask me that before my second cup.

Host: <short pause> So... is it?

Guest: For most people, three or four cups a day is fine. The sugar is the bigger problem.

Two names, two voices. ZenMic casts a voice for each speaker, or you pick them yourself.

Frequently Asked Questions

How many speakers can one audio have?

ZenMic's AI writer casts 1 to 6 speakers, and if you write your own script every named speaker gets a voice.

Can I choose the voice for each speaker?

Yes. Pick any voice for each speaker, including your own cloned voice.

Can speakers use different languages or accents?

Yes. Each speaker can have a voice with a different accent, for example a British host and an Irish guest.

Is it free to try?

Yes. Sign in and make your first audio free, no credit card needed.

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