Gemini 3.8 Flash TTS: Gemini text to speech with one or two voices

Give Manus your script and get natural speech back as a WAV file. Choose the voices, add a second speaker, and set the tone for each line.

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Small Wins podcast intro, two voices
Made with Gemini 3.8 Flash TTS in Manus: a two-host podcast intro, one script and two voices.

Why Gemini 3.8 Flash TTS

Gemini TTS with more voices and direction for every line

30 voices, plus 2,000+ regional ones

Start with 30 studio voices, or pick a library voice with a regional accent, such as Mexican Spanish or Liverpool English.

One speaker or a two-person dialogue

Give two speakers their own voices in one file, for podcasts, interviews, and practice calls.

A different tone on each line

Split the script into lines and give each one its own delivery, like calm, whispered, or excited, with sounds like a laugh or a sigh.

A closer look

What you can make with Gemini 3.8 Flash TTS

Every clip below was made with Gemini 3.8 Flash TTS in Manus. Each card shows the exact script, voices, and tone.

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Lighthouse scene, Achernar voice

Audiobook scenes that change tone

One voice goes from calm to a nervous whisper to panic, because each line has its own direction.

Prompt

Use Gemini 3.8 Flash TTS with the Achernar voice to read this audiobook scene in three lines. Line 1, calm storytelling: "The lighthouse had been dark for eleven years. So when Nora saw the lamp flicker on, just after midnight, she told herself it was the storm." Line 2, whispered and nervous: "Then she heard the footsteps on the stairs above her... <short pause> slow, and getting closer." Line 3, panicked and speaking fast: "No -- no, no, the door is locked from the OUTSIDE! Who's up there?"

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Support call, two library voices

Two-person calls with regional voices

A practice support call between two British English library voices, one from Winchester and one from Liverpool.

Prompt

Use Gemini 3.8 Flash TTS to voice this support call with two British English library voices: Hannah is en-gb-csagent-6 and Sam is en-gb-csagent-5. Hannah, professional and friendly: "Thanks for calling Harbour Line Rail, this is Hannah. How can I help today?" Sam, a bit stressed: "Hi, yeah, my train to Leeds was cancelled |oh no, I'm sorry| and I've got a meeting at ten. Is there anything earlier?" Hannah, professional and friendly: "Let me check... <short pause> Right, there's an eight fifteen from platform four. I can move your ticket onto it now, at no extra cost." Sam, relieved: "Oh, brilliant. You've saved my morning."

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Coffee ad, Mexican Spanish

Ads in Mexican Spanish

A library voice with a Mexican Spanish accent reads a 15-second coffee ad, warm and confident.

Prompt

Use Gemini 3.8 Flash TTS with the Mexican Spanish library voice es-419-commercial-8 to read this coffee ad, warm and confident: "¿Mañanas difíciles? Prueba Café Alba: tostado en pequeños lotes y listo en tres minutos. Con notas de cacao y caramelo, cada taza sabe a domingo, aunque sea lunes. Café Alba. Despierta con calma."

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Guided relaxation, Chinese

Calm narration in Chinese

A warm studio voice reads a guided relaxation script slowly, pausing where the script pauses.

Prompt

Use Gemini 3.8 Flash TTS with the Sulafat voice to read this guided relaxation script in Chinese, warm, calm, and slow: "欢迎来到今天的五分钟放松练习。先找一个舒服的姿势,轻轻闭上眼睛。吸气……慢慢地,数到四。呼气……让肩膀一点一点放松下来。很好,我们再来一次。"

Specs

Gemini 3.8 Flash TTS specs in Manus

Each request takes up to 6,000 characters of script and one or two speakers, and returns a WAV file.

Made by
Google
Vstup
Text
Output format
WAV
Ceny
Availability and credit usage depend on your Manus plan.See pricing

How it works

How to use Gemini text to speech in Manus

01

Open Audio

Choose Audio in Manus. Every speech request in Manus uses Gemini 3.8 Flash TTS, so there is no model to pick.

02

Paste or describe your script

Paste the words to read, or ask Manus to write them. Say which voices to use and how each line should sound.

03

Listen and ask for changes

Play the WAV file in the chat, then ask for a different voice, pace, or tone. Long scripts are made in parts and joined into one file.

Choose the right model

Gemini 3.8 Flash TTS or another audio model

Manus has a model for speech, one for music, and one for sound effects. Here is when to pick each one.

More models in Manus

Compare every model in Manus, from images and video to music and sound.

Často kladené otázky

What is Gemini 3.8 Flash TTS?

Gemini 3.8 Flash TTS is a Google TTS model from the Gemini TTS family. In Manus it turns a script of up to 6,000 characters into natural speech with one or two voices and saves it as a WAV file.

How do I use Gemini 3.8 Flash TTS in Manus?

Open Audio in Manus, paste or describe your script, and say which voice and tone you want. Every speech request in Manus uses Gemini 3.8 Flash TTS, so you do not need to pick a model.

How does pricing work for Gemini 3.8 Flash TTS in Manus?

Availability and credit usage depend on your Manus plan. See pricing

How is Gemini 3.8 Flash TTS different from Gemini 3.1 Flash TTS?

Gemini 3.8 Flash TTS replaced Gemini 3.1 Flash TTS in Manus. Scripts now go in line by line, each line can have its own tone, and besides the 30 studio voices you can pick from more than 2,000 library voices.

Should I use Gemini 3.8 Flash TTS, Lyria 3.5, or ElevenLabs Sound Effects v2?

Use Gemini 3.8 Flash TTS for spoken words, from voice-overs to two-person dialogue. Use Lyria 3.5 for music and ElevenLabs Sound Effects v2 for sound effects.

How many voices and languages does Gemini 3.8 Flash TTS have?

Manus offers 30 studio voices that work in every supported language, plus more than 2,000 library voices with regional accents across 30 locales. Write the script in the language you want, such as Chinese, Japanese, or Spanish. Gemini 3.8 Flash TTS reads it as written and does not translate.

Can Gemini 3.8 Flash TTS make a conversation between two people?

Yes. One request can have two speakers, each with their own voice. For three or more speakers, Manus makes the script in parts of up to two speakers and joins them.

Turn your first script into speech with Gemini 3.8 Flash TTS