Beyond Basic TTS: Features That Give You Real Control

Most AI dubbing tools give you three controls: speed, pitch, and volume. That's it. VibeTTS was born from the frustration of a developer who knew there had to be more - and discovered the incredible capabilities of the Toucan TTS model that were locked away in academic papers (read the full story).

Today, VibeTTS makes these advanced controls accessible to everyone, giving you the kind of precise voice direction that was previously only possible in professional recording studios.

Toucan: The Universal Powerhouse
Over 7,000 languages from major world languages to regional dialects and endangered languages. Advanced prosody control and voice cloning capabilities make it perfect for global projects requiring precise speech delivery.

Kokoro: The Quality Champion
Exceptional audio quality across 9 carefully supported languages. When naturalness and human-like speech are your priorities, Kokoro delivers broadcast-quality results that keep listeners engaged.

Imagine being able to direct a voice actor with the precision of a professional voice director - adjusting not just how fast they speak, but the creativity in their delivery, the energy they put into each word, even the length of natural pauses. That's exactly what VibeTTS gives you.

Here's the technical magic: Every single audio generation on our platform gets processed by Toucan's prosody extraction system. Whether you choose Toucan or Kokoro as your base model, you still get Toucan's advanced prosody analysis and control. This means you can take any generated audio and fine-tune its delivery with surgical precision.

Three Layers of Control

Global Speech Direction (6 Parameters)
Think of these as your master controls for the overall feel of the speech:

Prosody Creativity sets how expressive and varied the delivery should be - from monotone reading to dynamic storytelling. Pitch Variance controls the natural rise and fall of the voice throughout the passage. Energy Variance adjusts how much intensity and force goes into the words. Duration Scaling is your speed control, but more nuanced than simple playback speed. Pause Duration lets you adjust those natural breathing moments that make speech feel human. And Loudness controls the overall volume level.

Voice Character Shaping (6 Voice Parameters)
Six specialized controls that let you sculpt the fundamental character of the voice itself. These aren't just EQ adjustments - they're direct manipulation of the voice embedding space, letting you generate infinite unique voices from random seeds or fine-tune cloned voices to perfection.

Phoneme-Level Precision
This is where VibeTTS truly shines. Using our visual interface, you can edit the pitch, energy, and duration of individual speech sounds. Upload an audio file, and we'll extract its prosody pattern so you can edit and refine it, or apply that same expressive pattern to completely different text.

When we say VibeTTS supports over 7,000 languages, we're not exaggerating. This incredible capability comes directly from the Toucan model, developed by the University of Stuttgart's Institute for Natural Language Processing. They didn't just focus on the major world languages - they included regional dialects, cultural variations, and even endangered languages that are rarely supported by commercial TTS systems.

This isn't something we added on top - it's the fundamental capability of the Toucan model that we've made accessible through an intuitive interface. Whether your audience speaks Mandarin, Swahili, Cherokee, or one of thousands of other languages, Toucan delivers authentic pronunciation patterns that respect cultural speech norms.

VibeTTS gives you two powerful approaches to voice creation, each with its own strengths:

Infinite Voice Generation from Seeds
Instead of being limited to a fixed library of pre-made voices, Toucan generates completely unique voices from random seeds. Think of it like having an infinite library where each voice is mathematically unique. You can generate as many different voices as you need, and each one can be fine-tuned using our 6 voice parameters to match exactly what you're looking for.

Voice Cloning That Actually Works
Upload audio samples and Toucan will analyze and replicate the vocal characteristics with remarkable accuracy. The cloned voice isn't just a copy - it inherits all of Toucan's prosody control capabilities, so you can direct it with the same precision as any generated voice. Currently available with Toucan (Kokoro doesn't support voice cloning yet, but that may change with future updates).

Here's where VibeTTS feels genuinely different from other TTS platforms: change any parameter, adjust any prosody setting, or modify your text, and new audio generates automatically in about 2 seconds. No "generate" button to click, no waiting around wondering if your changes worked.

This auto-inference system means you can experiment freely, tweaking prosody controls and hearing the results immediately. It transforms the experience from batch processing to real-time voice direction - like having a responsive voice actor who instantly applies your feedback.

While our current prosody controls give you incredible precision, we're working on additional models that will expand expression capabilities:

Orpheus (in development) will bring emotional tags like [laugh], [sigh], and [gasp] for creative applications requiring character voices and emotional depth.

Chatterbox (in development) will focus on high-fidelity English voice cloning with specialized emotion control features.

We're working on developer-friendly API access that will let you integrate VibeTTS capabilities directly into your applications. While we don't have specific timelines yet, the goal is to provide simple REST endpoints with the same prosody control and voice generation capabilities you see in the web interface.

Let's be clear about what's available right now versus what's in development:

Available Today:

• Two production-ready models (Toucan with 7,000+ languages, Kokoro with exceptional quality)
• Complete prosody control system with 6 speech parameters and 6 voice parameters
• Phoneme-level editing with visual interface
• Voice cloning (Toucan only)
• Infinite voice generation from seeds
• Auto-inference with ~2-second generation time
• Prosody extraction from uploaded audio

In Development:

• Additional models (Orpheus for emotional expression, Chatterbox for specialized cloning)
• Developer API access
• Additional features based on user feedback

The difference between VibeTTS and other TTS platforms isn't just the number of languages or the audio quality - it's the level of control you get over the final result. Instead of hoping a generic voice will work for your project, you can shape every aspect of the speech delivery until it matches exactly what you envisioned.

Whether you're creating content for a global audience, need broadcast-quality narration, or want to preserve a specific voice through cloning, VibeTTS gives you the tools that were previously locked away in research labs and professional studios.

Getting Started is Simple:

1. 1
   Choose your model based on your priorities (global reach vs. premium quality)
2. 2
   Generate or clone the voice that fits your project
3. 3
   Use our prosody controls to perfect the delivery
4. 4
   Let auto-inference show you the results in real-time

Start creating voices, explore our AI voice models, discover real-world use cases, or learn more about our mission.