Enter the text content for this dialogue segment.
Select the voice character for this dialogue.
Enter the text content for this dialogue segment.
Select the voice character for this dialogue.
Single speaker
Xavier: [calm] Welcome to Lati AI, where you can bring photos to life with AI Avatar Lip Sync. [excited] Upload an image and audio and watch your avatar talk naturally.
Multi-speaker dialogue
Juniper: [excitedly] Hey James! Have you tried the new ElevenLabs V3?
James: [curiously] Yeah, just got it! The emotion is so amazing. I can actually do whispers now— [whispering] like this!
AI Text to Speech — 113 Voices, 39 Audio Tags, Multi-Speaker Dialogue
Most text-to-speech tools offer one voice selector and a speed dial. This engine adds 39 inline audio tags — [excited], [whispering], [laughing], [sigh], [British accent] — that control how each line is delivered, mid-sentence if needed. Built on ElevenLabs' v3 multi-speaker dialogue model, it assigns different AI voices to different speakers within a single generation request. The voice library holds 113 presets organized across 8 categories (best-v3, conversational, storytelling, video games, TikTok, Hollywood, announcers, and relaxing), spanning 75 languages with auto-detection. Each generation supports up to 5,000 characters. The output MP3 feeds directly into our AI Avatar Lip Sync tool, creating a complete text-to-talking-video pipeline without a microphone or voice actor.
What Is Multi-Speaker AI Text to Speech?
AI text to speech converts written text into human-sounding speech using neural voice synthesis. The ElevenLabs v3 engine behind this tool models prosody — pitch contour, stress patterns, and timing — at a level that traditional concatenative TTS cannot match. Where older systems stitch pre-recorded syllable fragments together, this model generates waveforms from a learned representation of how each voice sounds, producing natural intonation shifts, breathing pauses, and emphasis that track the meaning of the text.
The multi-speaker dialogue feature separates this from single-voice TTS tools. Assign a different voice to each line of dialogue, and the engine generates a single audio file with natural turn-taking between speakers. Layer in 39 audio tags across 6 categories — emotion (excited, sad, angry), delivery (whispering, shouting, singing), non-verbal (sigh, gasp, laugh), sound effects (door knocking, rain), accent (British, Australian), and pacing (slowly, dramatically) — and you control not just what the voice says, but how it says it. The finished MP3 can be downloaded standalone or fed into AI Avatar Lip Sync to produce a talking head video.
AI Text to Speech Features
ElevenLabs v3 dialogue engine with 113 voices, 39 audio tags, and 75-language support.
Single-Request Multi-Speaker Dialogue
Assign a different voice to each dialogue line and generate one audio file containing the entire conversation. The engine handles turn-taking, pacing between speakers, and per-line audio tag application. Podcasts, audiobook chapters, game cutscenes, and interview scripts all resolve in a single API call — no manual splicing required.
39 Audio Tags Across 6 Categories
Emotion (excited, sad, angry, surprised), delivery (whispering, shouting, singing), non-verbal (sigh, gasp, laugh, cough), sound effects (door knocking, rain, footsteps), accent (British, American, Australian, Indian), and pacing (slowly, quickly, dramatically, with a pause). Insert any tag inline — at the start of a line for consistent delivery, or mid-sentence for dramatic shifts.
113 Preset Voices in 8 Categories
best-v3 (37 voices), conversational (17), TikTok (10), video games (18), storytelling (8), Hollywood (9), announcers (9), and relaxing (13). Each voice has distinct character, pitch, and cadence. Preview any voice in-browser before committing credits. The Stability slider adjusts from Creative (0) through Natural (0.5) to Robust (1).
75 Languages with Auto-Detection
Generate text to speech in English, Chinese, Japanese, Korean, French, German, Spanish, Portuguese, Arabic, Hindi, Russian, and 64 more languages. Auto-detect mode identifies the language from your text — or select manually for optimal pronunciation when mixing scripts or handling dialect-specific content.
Direct AI Avatar Integration
The output MP3 is format-compatible with our AI Avatar Lip Sync tool. Generate dialogue, download the audio, upload it with a portrait photo, and produce a talking head video — a complete text-to-video pipeline. A 5,000-character TTS script plus a 15-second Latiai Lip Sync at 480p produces both audio and video in a single workflow — no microphone or camera needed.
Browser-Based, No Installation
Preview all 113 voices in-browser without signing up. Generation requires an account and credits. Output downloads as MP3. No software installation, no format conversion, no local processing — the ElevenLabs v3 engine runs server-side and returns the finished audio file.
Audio Tags Reference Guide
39 inline markers across 6 categories — the feature that separates this TTS from every competitor.
Audio tags are text markers placed inside your dialogue script that tell the AI voice engine how to deliver each phrase. Insert a tag at the start of a line to set overall emotion, or place it mid-sentence to trigger a dramatic shift. Every tag works with all 113 voices and all 75 languages. The engine processes tags during waveform generation, not as post-processing, so the resulting prosody is natural rather than overlaid.
Emotion (10 tags)
excited, happy, sad, angry, surprised, disgusted, fearful, calm, serious, confused
[excited] We just passed a million users! [surprised] Wait, are you serious?
Delivery Style (7 tags)
whispering, shouting, singing, laughing, crying, mumbling, yelling
[whispering] Don't tell anyone, but [shouting] WE WON THE CONTRACT!
Non-Verbal Sounds (7 tags)
sigh, gasp, laugh, cough, clearing throat, sniff, yawn
[gasp] You scared me! [laugh] Okay, that was actually funny.
Sound Effects (7 tags)
phone ringing, door knocking, footsteps, rain, wind, thunder, birds chirping
[rain] The forecast says it'll clear by noon. [thunder] Or maybe not.
Accent (4 tags)
British accent, American accent, Australian accent, Indian accent
[British accent] The meeting's at half three. [American accent] That's 3:30 for us.
Pacing (4 tags)
slowly, quickly, with a pause, dramatically
[dramatically] And the award goes to... [with a pause] our team.
TTS + AI Avatar: Text to Talking Video
Type a script, generate the voice, produce a lip-synced video — no microphone at any step.
This platform's unique value is the direct pipeline between Text to Speech and AI Avatar Lip Sync. Write a 5,000-character multi-speaker script, generate the audio, then feed it into Latiai Lip Sync at 480p for a talking head video. The complete script-to-video pipeline runs without a recording studio, voice actor booking, or video editing software. No recording studio, no voice actor booking, no video editing.
Write and Tag Your Script
Type dialogue in the editor. Assign a voice from 113 presets to each speaker line. Insert audio tags like [excited] or [whispering] at emotional beats. The engine supports up to 5,000 characters per generation.
Generate Multi-Speaker Audio
The ElevenLabs v3 engine produces a single MP3 file with natural turn-taking between speakers. Adjust the Stability slider (Creative 0 / Natural 0.5 / Robust 1) to control voice consistency. Processing takes seconds to minutes depending on length.
Upload to AI Avatar Lip Sync
Take the generated MP3, pair it with a portrait image in the AI Avatar tool, and produce a talking head video. The lip sync engine maps the audio's phoneme timing to mouth shapes, head motion, and facial expression — the portrait appears to speak the dialogue you wrote.
How to Use AI Text to Speech
Write dialogue, assign voices, add audio tags, and generate — all in-browser.
Write and Tag Your Dialogue
Enter text in the editor. For multi-speaker content, add separate lines and assign a voice to each speaker. Insert audio tags like [excited], [whispering], or [sigh] at emotional beats. Total text must stay under 5,000 characters per generation.
Select from 113 AI Voices
Browse 8 voice categories: best-v3 (37), conversational (17), TikTok (10), video games (18), storytelling (8), Hollywood (9), announcers (9), relaxing (13). Preview each voice in-browser with one click. Select a language from 75 options or let auto-detect identify it.
Generate and Download MP3
Set the Stability slider — Creative (0) for expressive variation, Natural (0.5) for balanced delivery, or Robust (1) for consistent tone. Click generate. Processing takes seconds for short text, up to a few minutes for 5,000-character scripts. Download the MP3 or feed it into AI Avatar Lip Sync.
Text to Speech Use Cases
From podcast dialogue to game cutscenes — audio tags and multi-speaker voices solve different production needs.
Podcast Dialogue Production
Generate full interviews without booking guests
Assign distinct voices to host and guest lines, add [laugh] and [gasp] tags for natural reactions, and produce a complete podcast episode audio in one generation. A 4,000-character interview script generates in seconds. Edit the script, regenerate, and compare takes — iteration costs only credits, not studio time.
Audiobook Character Voices
Give each character a unique identity
Map 113 voices to different characters across chapters. Use [whispering] for tension, [dramatically] for climaxes, [with a pause] for pacing. The Stability slider at Robust (1) keeps each character's voice consistent across long scripts. A 5,000-character chapter generates in a single request.
Game Cutscene Prototyping
Hear dialogue before recording voice actors
The video games category contains 18 specialized voices — warriors, scientists, narrators, villains. Generate cutscene dialogue with [shouting] battle cries, [whispering] conspiracy scenes, and [angry] confrontations. Iterate on scripts until the director approves, then hand the final script to live talent.
Multilingual Course Narration
One script, 75 language versions
Write the course script once, translate it (or let auto-detect handle language identification), and generate narration in English, Mandarin, Spanish, Arabic, or any of 75 languages. Pair each audio with AI Avatar Lip Sync to produce instructor talking head videos — the same face speaks every language.
A/B Test Voiceovers at Scale
Generate multiple versions for split testing
Produce 5 voiceover variants of the same ad script — different voices, different audio tags, different Stability settings — in minutes each. Test audience response to [excited] versus [calm] delivery, male versus female voices, or fast versus slow pacing, without rebooking a voice actor for each take.
TikTok and Reels Voiceovers
10 TikTok-style voices ready to go
The TikTok voice category contains 10 voices optimized for short-form social audio. Add [sarcastic], [excited], or [whispering] tags for trending delivery styles. A 500-character voiceover generates in seconds. Pair with AI Avatar at 480p for camera-free video presence on social platforms.
Text to Speech Best Practices
Script Writing Tips
- Write dialogue as spoken language — contractions, informal phrasing, and sentence fragments sound more natural than formal prose
- Keep individual dialogue lines under 500 characters — the engine optimizes prosody within shorter segments
- Use punctuation to control rhythm: commas create brief pauses, em dashes create longer ones, ellipses signal trailing off
- Spell out numbers and abbreviations ('twenty three' not '23', 'doctor' not 'Dr.') for correct pronunciation
Audio Tag Usage Tips
- Tag emotional beats, not every line — over-tagging produces exaggerated delivery that sounds unnatural
- Combine tags for nuance: [excited] then [quickly] in the same line creates urgent enthusiasm
- Non-verbal tags ([sigh], [laugh], [gasp]) work best at the start of a line — mid-sentence placement can interrupt flow
- Test the same line with 3-4 different tags at Stability 0.5 to find the delivery that fits your script's tone
Text to Speech Technical Specifications
AI Engine
- Engine: ElevenLabs v3 Multi-Speaker Dialogue
- Voices: 113 presets across 8 categories (preview in-browser)
- Audio Tags: 39 tags across 6 categories (emotion, delivery, non-verbal, SFX, accent, pacing)
- Stability slider: Creative (0) / Natural (0.5) / Robust (1)
Input
- Text: up to 5,000 characters per generation (all lines combined)
- Multi-speaker: assign different voice per line, unlimited lines per request
- Languages: 75 supported with auto-detect
- Per-generation limit: 5,000 characters across all dialogue lines
Output
- Format: MP3 audio file, compatible with AI Avatar Lip Sync
- Processing: seconds to minutes depending on script length
- Download: immediate after generation completes
- Compatible with AI Avatar Lip Sync for direct video output
Related AI Tools
Text to Speech FAQ
Answers about AI voice generation, audio tags, pricing, and the TTS-to-Avatar pipeline.
Type It, Tag It, Hear It
Write your script, assign voices from 113 presets, add audio tags for emotion — generate multi-speaker dialogue audio with up to 5,000 characters per request. Feed the output into AI Avatar Lip Sync for a complete text-to-talking-video pipeline.