NotebookLM-style podcast clones
Create a two-host podcast where one AI voice asks questions and the other explains. Write the script, generate Host A and Host B with contrasting voices, then splice. No subscription, no waitlist.
Multi-voice TTS
AI Dialogue Generator
Create natural two-speaker conversations in seconds. Host and Guest voices are set up and ready to go. Simply write your script, generate the audio, and download the finished track as a single file.
This tool page isn’t translated yet — the working tool below runs in English. Use it in English
Two-voice TTS
Multi-character dialogue from a flat script
The dialogue studio starts with two speakers already loaded. Write the conversation, generate, and download one finished file. Each person keeps a distinct voice.
Related use cases
The quick answer
Write one line per turn. Host and Guest already have voices. Click Generate and download one joined WAV or MP3.
Dialogue workflow
Write, then generate
- 01
Write the conversation
One line per turn. The Host speaks first, the Guest second, and they alternate. If you already use NAME: line tags in your scripts, those work too.
- 02
Change a voice only if you want
Host and Guest have contrasting voices by default. Rename them, pick different voices, or add another speaker. We never auto-detect speakers from the script.
- 03
Generate and download
One click on Generate builds the conversation. Listen to it, then download a joined WAV or MP3.
When to use it
What people build with multi-voice TTS
Animated shorts and game prototypes
Give every character in your storyboard or Twine prototype a different Kokoro voice. With 54 voices, you can voice an entire small cast without hiring VAs for the rough cut.
Audiobook character dialogue
Narrate the prose with one voice (River or Daniel), then swap in distinct character voices for direct quotes. Listeners know who is speaking without a “she said” tag on every line.
Language-learning conversations
Generate two-speaker dialogues in Spanish, French, Hindi, Japanese, Mandarin, and four more languages. Pair a male and female native voice for realistic A/B exchange drills.
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Six voice pairings that contrast cleanly
Dialogue succeeds or fails on whether listeners can tell the two voices apart without thinking. These six pairings contrast on gender, accent, or character tone. Pick one and start generating.
01 US English
Sarah + Adam
Host + expert guest
Best for
NotebookLM-style explainer podcasts. Sarah asks the questions, Adam delivers the authoritative answer. The most natural pairing for two-host US English shows.
02 US English
Bella + Liam
Casual conversation
Best for
Lifestyle pods, friend-chat formats, café-scene dialogue in audiobooks. Both voices read warm, so the back-and-forth feels relaxed rather than formal.
03 British English
Daniel + Emma
Period drama or BBC-style
Best for
Audiobook scenes set in the UK, prestige documentary two-handers, history podcasts with a host-and-narrator structure. The matched accent keeps the world consistent.
04 US English (character)
Puck + Sky
Animation / game characters
Best for
Animated shorts, Twine prototypes, indie game NPC dialogue. Puck is mischievous, Sky is bright. These are clear character voices, not narrator voices.
05 US English
River + Nova
Documentary narrator + interviewee
Best for
True-crime, history, science docs where a smooth narrator threads between recreated quotes. River carries the throughline, Nova plays the voice in the archive.
06 US English
Michael + Jessica
Co-host energy
Best for
Morning-show banter, news-and-chat formats, branded podcast intros where two hosts trade a cold open before the show kicks in.
Want to hear them? Browse all 54 voices →
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How to write dialogue that sounds natural in TTS
The model handles the voice. Realism comes from how you script the beats, silences, and small reactions between characters. Here are six rules that cover the whole process.
- 01
Write one line per turn
The Host takes the first line, the Guest the second, and they keep alternating. Optional NAME: line tags still work if you already write scripts that way.
- 02
Use punctuation to script the beats between lines
A comma is a quarter-beat, a period is a half-beat, an em dash is a real pause, and an ellipsis is a held beat. If a character is hesitating, write "Well... I don't know if that's true." instead of "Well I don't know if that's true." The pause is what sells the hesitation, and Kokoro respects the punctuation.
- 03
Leave 200–400 ms of silence between turns
Real conversational gaps average around 250 ms. Slap two TTS clips back-to-back and the dialogue sounds robotic; add 300 ms of true silence between turns in your editor and it sounds like two people talking. For tense scenes, drop to 100 ms. For thoughtful exchanges, push to 600 ms.
- 04
Fake interruptions with a 50–100 ms overlap
Truncate Character A's clip mid-word, then drag Character B's clip to start 50–100 ms before A ends. The brief overlap is the universal audio cue for "they cut in." A 100 ms crossfade on the overlap zone smooths the splice, making the interruption read as natural.
- 05
Pan voices slightly left and right for headphone clarity
Pan Character A 15% left and Character B 15% right. Not enough to feel theatrical, but enough that headphone listeners stop conflating who's speaking. Hard panning (50%+) only works for radio drama. For podcasts and audiobooks, 15% is the sweet spot.
- 06
Spell phonetic reactions for laughter and "uh-huh"
No SSML, no <laugh> tag; just write what you want spoken. "Hah hah hah" delivers a clean three-syllable laugh, "mmhm" reads as agreement, and "ugh" lands as exasperation. Test the reaction as a 10-character solo generation, swap voices if one delivers it cleaner, then drop the WAV onto a separate track in your edit.
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FreeTextoSpeech vs PlayHT and Murf dialogue features
PlayHT and Murf both ship native multi-speaker modes: paste once, render one mix. The trade-off is monthly character caps, sign-up, and a paid commercial license. Here is the honest read.
Feature
FreeTextoSpeech
PlayHT / Murf free tiers
Multi-voice dialogue support
Native multi-speaker dialogue feature, but locked behind paid tiers with a capped voice roster on free.
Voice variety per scene
Smaller free voice pool, with most distinct character voices paywalled.
Cost for a 5-minute dialogue
Counts against your monthly character allowance on the free tier. Longer scenes push you towards a paid plan.
Commercial license on free tier
Commercial use is restricted on the free tier. You need a paid plan for monetised podcasts and indie games.
Output format
Compressed MP3 on the free tier, often single-mix only.
Signup
Email sign-up required. Credit card on file for commercial features.
One-click multi-voice generation
Native multi-speaker dialogue mode on paid tiers (one paste, one render).
Multi-voice dialogue support
FreeTextoSpeech
Write one line per turn. Host and Guest already have voices, and you can export one joined conversation.
PlayHT / Murf free tiers
Native multi-speaker dialogue feature, but locked behind paid tiers with a capped voice roster on free.
Voice variety per scene
FreeTextoSpeech
54 voices across 9 languages, enough for an entire ensemble cast.
PlayHT / Murf free tiers
Smaller free voice pool, with most distinct character voices paywalled.
Cost for a 5-minute dialogue
FreeTextoSpeech
Free. No limit on the number of generations.
PlayHT / Murf free tiers
Counts against your monthly character allowance on the free tier. Longer scenes push you towards a paid plan.
Commercial license on free tier
FreeTextoSpeech
Full commercial use allowed, no attribution needed.
PlayHT / Murf free tiers
Commercial use is restricted on the free tier. You need a paid plan for monetised podcasts and indie games.
Output format
FreeTextoSpeech
24 kHz WAV per voice. Drop them straight onto separate tracks in any DAW.
PlayHT / Murf free tiers
Compressed MP3 on the free tier, often single-mix only.
Signup
FreeTextoSpeech
None. Open the page, paste, generate.
PlayHT / Murf free tiers
Email sign-up required. Credit card on file for commercial features.
One-click multi-voice generation
FreeTextoSpeech
Native multi-speaker generation with loaded speakers, joined export, and optional Advanced controls.
PlayHT / Murf free tiers
Native multi-speaker dialogue mode on paid tiers (one paste, one render).
Generate runs each turn in order so the shared voice engine isn’t overloaded.
FAQ
Frequently asked questions
01 Can I generate two voices in a single request?
Yes. Write the conversation, assign a different voice to each speaker, and click Generate. The studio runs the turns in order and creates one joined audio file.
02 How do I keep voices from sounding similar?
Pick voices that contrast on at least two axes: gender, accent, or pitch. Sarah + Adam (US female warm + US male authoritative) reads cleanly. Bella + Daniel (US conversational + UK formal) reads even cleaner because the accent shift is unmistakable. Avoid pairing two same-accent, same-gender voices; listeners will lose the thread.
03 How do I fake an interruption between characters?
Use a short pause between turns in Advanced options. For a true overlap, download the joined file and place the incoming line a little early in your editor.
04 How do I handle laughter, sighs, or "uh-huh" reactions?
The model has no non-verbal sound tags. Write phonetic reactions such as “hah hah,” “mmhm,” or “ugh” as their own short speaker turns. If it doesn’t sound right, try a different spelling for that turn.
05 Can I publish AI-generated dialogue commercially?
Yes. The 24 kHz WAVs you download from FreeTextoSpeech are licensed for full commercial use: podcasts, monetised YouTube videos, paid audiobooks, indie games, and ad reads. No attribution required and no royalty share. The license covers two-voice dialogue scenes the same way it covers single-voice narration.
06 How long can a dialogue scene be?
Each generation is capped at 5,000 characters, but you can run as many as you need. A typical 30-minute, two-host podcast scene works out to roughly 4,500 words of dialogue split across both characters. That’s about 12 generations, six per voice. Splice them in one project file and you have the full episode.
07 Does the dialogue sound natural across the cut between turns?
Yes, because the Kokoro model is deterministic per voice. Character A always sounds like Character A across every clip. The seam is in the silence between turns, not in the voice itself. Leave 200–400 ms of room tone or true silence between speakers and the conversation breathes the way human dialogue does.
08 Can I do three or more characters?
Yes. Add a speaker in the studio, give them a distinct voice, and keep writing one line per turn. Three voices is fine; four starts to strain listener tracking unless one is clearly the narrator.
Still wondering? Get in touch →
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Related TTS tools
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↗
Text to Speech for Podcasters
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Long-form
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Text to Speech for Audiobooks
Indie audiobook narration with character-dialogue voice swaps.
Voice quality
↗
Natural AI Voice Generator
Why Kokoro voices read as human across long dialogue scenes.
Long-form
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Text to Speech for YouTube
Drop dialogue scenes straight into Premiere or DaVinci Resolve.
Try it now
Build your first two-voice scene.
Generate it free in under 10 minutes. Full commercial rights included.