VibeVoice

Microsoft's groundbreaking 1.5B parameter open-source neural voice synthesis model with 90-minute continuous generation and multi-speaker support

2.5k+

GitHub Stars

50k+

Downloads

25+

Contributors

Key Features

90-Minute Continuous Synthesis

Breakthrough neural architecture enabling uninterrupted 90+ minute voice generation with zero voice drift or semantic discontinuities.

Multi-Speaker Voice Bank

50+ pre-trained professional voices with 256-dimensional speaker embeddings and cross-speaker consistency algorithms.

High-Fidelity Audio & Multi-Language

Studio-quality 48kHz/24-bit audio with neural compression and native support for 8 languages including emotional intonation.

What is VibeVoice?

Microsoft's Revolutionary Voice Synthesis AI

VibeVoice is Microsoft's groundbreaking 1.5 billion parameter open-source neural voice synthesis model that represents a quantum leap in AI-generated speech technology. Unlike traditional text-to-speech systems, VibeVoice leverages advanced transformer architecture to deliver unprecedented voice quality and naturalness.

Open Source Apache 2.0 License - Complete transparency and community-driven development

Enterprise-Grade Quality - Studio-quality 48kHz/24-bit audio output

Research-Backed Technology - Developed by Microsoft Research with peer-reviewed papers

Technical Innovation

VibeVoice introduces novel neural architecture optimizations that enable 90+ minutes of continuous voice synthesis without quality degradation, setting a new industry standard for long-form audio generation.

1.5B
Parameters
90+
Minutes Continuous
50+
Professional Voices
8
Languages

Technical Specifications

Parameter Specification Details
Model Size 1.5B Parameters 1,536,000,000 trainable parameters
Architecture Transformer-based 12-layer encoder, 8-layer decoder
Maximum Duration 90+ minutes Continuous synthesis without breaks
Sampling Rate 16-48kHz Adjustable based on requirements
Bit Depth 16-24 bit Professional audio quality
Latency <200ms Real-time processing capable
Languages 8 languages Native support with accent preservation
Voice Bank 50+ voices Pre-trained professional voices
Compression Ratio 12:1 Neural compression without quality loss
Memory Usage 4GB GPU RAM Optimized for consumer hardware

Live Demo

Experience VibeVoice's 90-minute continuous synthesis and multi-speaker capabilities

Use Cases

Audiobook Production

Generate entire chapters with 90-minute continuous synthesis and consistent narrator voice throughout lengthy productions.

Podcast Generation

Create dynamic podcast episodes with multiple character voices using our 50+ voice bank and emotional intonation.

Game Voice Acting

Generate character dialogues on-demand with emotional modulation and context-aware delivery for interactive storytelling.

Documentation

Getting Started

Comprehensive guide to integrate VibeVoice's 1.5B parameter model with 90-minute continuous synthesis capabilities.

Read Documentation

API Reference

Complete API documentation for multi-speaker voice synthesis, continuous generation, and audio enhancement endpoints.

View API Docs

Join Our Community

GitHub

Access the 1.5B parameter open-source model, contribute to development, and track research progress.

Discord

Join 5000+ developers and researchers for technical discussions, voice synthesis expertise, and collaboration.

YouTube

Watch technical tutorials, 90-minute synthesis demos, and multi-speaker comparison showcases.

Frequently Asked Questions

What is VibeVoice?

VibeVoice is Microsoft's open-source 1.5B parameter neural voice synthesis AI that enables 90-minute continuous voice generation with studio-quality audio output and support for 50+ professional voices across 8 languages.

How long can VibeVoice generate continuous audio?

VibeVoice can generate uninterrupted audio for 90+ minutes without voice drift or semantic discontinuities, making it ideal for audiobook production, podcast generation, and long-form content.

What languages does VibeVoice support?

VibeVoice natively supports 8 languages: English, Chinese, Spanish, French, German, Japanese, Korean, and Arabic. Each language includes emotional intonation and accent preservation.

Is VibeVoice open source?

Yes, VibeVoice is completely open source under the Apache 2.0 license. The source code, model weights, training data, and documentation are available on GitHub for transparency and community collaboration.

What hardware is required to run VibeVoice?

VibeVoice requires 4GB GPU RAM for optimal performance and can run on consumer hardware. It supports real-time processing with less than 200ms latency and can be deployed on both cloud infrastructure and local workstations.

How does VibeVoice handle different speaking styles?

VibeVoice uses 256-dimensional speaker embeddings and advanced emotional intonation modeling to adapt to different speaking styles, from formal narration to conversational dialogue, ensuring natural and context-appropriate voice delivery.

Can VibeVoice be used commercially?

Yes, VibeVoice's Apache 2.0 license allows commercial use, modification, and distribution without restrictions. Enterprise support options, including SLA guarantees and dedicated technical support, are also available for mission-critical deployments.

What audio formats does VibeVoice support?

VibeVoice supports multiple professional audio formats including WAV (48kHz/24-bit studio quality), MP3 (compressed for web delivery), and OGG. The output quality and format can be adjusted based on specific application requirements.

How accurate is the multilingual support?

VibeVoice achieves native-level pronunciation accuracy across all 8 supported languages, with proper intonation, rhythm, and accent preservation. The model was trained on 50,000+ hours of studio-quality multilingual audio data to ensure linguistic authenticity.

Is technical support available for VibeVoice?

Yes, comprehensive technical support is available through multiple channels: active Discord community with 5000+ members, GitHub issues for bug reports and feature requests, and enterprise support contracts with SLA guarantees for production deployments.

Explore VibeVoice