Open-source text-to-speech

A voice with character.

LuxTTS delivers natural prosody, controllable style, and fast inference so teams can ship voice experiences with studio-level clarity and speed.

Open-source Community-first development
Real-time Low-latency inference
Studio-grade Expressive prosody control

Why LuxTTS

LuxTTS keeps fidelity high while staying lightweight.

  • Zero-shot voices without speaker-specific training
  • Style prompts for emotion, pacing, and emphasis
  • Export-ready audio pipelines for production

Live workspace

LuxTTS Demo

Explore the LuxTTS demo below.

Voicv

Turn text into natural speech and create voices for your next project.

Try Voicv

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Benefits

LuxTTS Benefits for production teams

Everything needed to create human-sounding voices without an overgrown infrastructure stack.

LuxTTS Natural Prosody

Balanced timbre and rhythm that keeps narration believable across long-form content.

LuxTTS Style Control

Fine-grained prompting for tone, emotion, and pacing while staying consistent in every voice.

LuxTTS Fast Inference

Low-latency generation that stays responsive in product workflows and live demos.

For who

LuxTTS Use Cases

LuxTTS adapts to teams who need expressive voice experiences without proprietary lock-in.

LuxTTS for Creators

Spin up voiceovers for videos, podcasts, and storytelling without waiting on studio sessions.

LuxTTS for Call Centers

Deliver consistent brand voice agents with empathetic tones across high-volume calls.

LuxTTS for Accessibility

Readable, natural speech for assistive products and inclusive learning tools.

LuxTTS for Gaming

Real-time narration, character dialogue, and dynamic story engines.

Features

LuxTTS Features you'll love

Lean capabilities designed for teams who ship fast and want clarity on every layer.

LuxTTS API-ready

Drop LuxTTS into existing services with clear I/O expectations and predictable latency.

LuxTTS Multilingual

Build multi-locale experiences without rebuilding a new pipeline for every market.

LuxTTS Streaming

Deliver conversational outputs with streaming-friendly response patterns.

LuxTTS Voice Cloning

Zero-shot cloning with style prompts for consistent narrator identity.

LuxTTS Export WAV/MP3

Download-ready output formats for production post-processing.

LuxTTS Open Weights

Inspect, fork, and fine-tune with the community without licensing surprises.

Shape the spoken brief

Start by deciding what the listener needs from the recording. A welcoming introduction, a character line, and a troubleshooting instruction have different rhythms. Write the message in ordinary language before deciding how expressive the voice should be. A clear sentence gives you a more useful starting point than a long list of style adjectives.

Prepare a small comparison

Open luxtts.com, review the project overview, and choose a short passage for your first evaluation. Use the repository documentation to confirm the controls available in the version or demo you are trying. Keep the wording stable while comparing delivery, and write down what you want to change: a pause before a warning, a calmer sentence ending, or a clearer reading of a name.

When a passage sounds awkward, simplify the text before trying a completely different voice. Split instructions that contain several actions, spell out an abbreviation where necessary, and check punctuation around quoted speech. Save your revisions so you can compare the same passage again instead of relying on memory.

Try a real scene

A short narrated introduction

Draft the opening paragraph of a video that introduces a place, a product, or an idea. Put the subject in the first sentence and leave enough room for the viewer to look at the image. Play the audio against the rough edit. If the narration feels crowded, cut unnecessary wording instead of asking the voice to rush through every detail. Treat the sample as a creative draft that still needs review.

A character with a clear intention

For a game or story prototype, write a line with a specific intention, such as reassuring another character or giving a warning. Compare alternative readings of that same line. Listen for a believable transition between words and for emphasis that supports the meaning. A more dramatic delivery is not automatically a better fit; consistency with the surrounding scene matters more than intensity alone.

A lesson that can be followed

Choose a paragraph that introduces one unfamiliar concept. Explain the term before using it repeatedly, and keep examples close to the definition. Listen without looking at the script, then ask whether a learner could repeat the main point. Keep written captions or a transcript alongside the audio so that readers can revisit a word at their own pace.

Review the whole passage

Check names, numbers, and sentence endings against the script. Listen through a full passage rather than selecting the strongest sentence in isolation. Pay attention to changes in loudness, pauses that interrupt a thought, and a tone that becomes inconsistent across clips. Keep the original samples when making edits so that you can undo an unhelpful change.

Evaluate playback in the intended setting. A voiceover mixed with music needs a different listening check from a message played on its own. Review clarity at ordinary volume, and check that important instructions remain understandable. Any final mixing, captioning, or assembly belongs to your own publishing workflow.

If the demo is unavailable, the repository and documentation remain useful places to inspect the project. A link to another voice product opens a separate service. Review that service's available features and terms before moving your material there, and verify the applicable model and reference-audio permissions before publishing a recording.

Keep feedback specific

Ask a reviewer to identify the exact word or pause that needs attention. A note such as “the name is unclear in the second sentence” gives you a practical revision target. Compare the revised passage with the previous version at the same playback level, and keep the version that communicates the intended meaning more clearly. This small review loop is especially useful when assembling several clips, because it prevents an isolated improvement from making the overall narration feel less consistent.

FAQ

LuxTTS FAQ

Quick answers for teams evaluating LuxTTS in production.

What license does LuxTTS use?

LuxTTS is open-source. Check the repository license for the latest terms and model usage details.

How large is the LuxTTS model?

The core checkpoints are optimized for lightweight deployment. Review the repo for exact sizes and recommended hardware.

Can LuxTTS run on CPU?

Yes. LuxTTS supports CPU workflows, with best performance on modern GPUs for real-time output.

Does LuxTTS store my text?

Self-hosting keeps prompts local. The demo runs on Hugging Face Spaces for quick experimentation.

How can I contribute to LuxTTS?

Open an issue, submit a PR, or join the community discussions in the LuxTTS GitHub repository.