VoxCPM - Faceted Intelligence and Tsinghua Open Source End-to-End TTS Model

What is VoxCPM

VoxCPM is a speech generation model jointly open-sourced by Facade Intelligence and Shenzhen International Graduate School of Tsinghua University.VoxCPM adopts an end-to-end diffusion autoregressive architecture, generating continuous speech representations directly from the text, breaking through the limitations of traditional discrete disambiguation. Through hierarchical language modeling and finite state quantization constraints, it realizes implicit decoupling of semantics and acoustics, which significantly improves the expressiveness and generation stability of speech. The naturalness, timbre similarity, and rhythmic expressiveness of speech synthesis have reached the industry's top level. VoxCPM supports zero-sample voice cloning, which can accurately reproduce the speaker's timbre, accent, and emotional intonation with only one piece of reference audio, and generate highly realistic voices. VoxCPM supports bilingual voice cloning, synthesizes audio formulas and symbols, and realizes custom pronunciation correction.

Features of VoxCPM

• Context-aware speech generationThe program can automatically adjust the rhyme and speaking style according to the text content, generating a natural and expressive voice.
• zero-sample speech cloning: With just one piece of reference audio, the speaker's timbre, accent, emotional tone and other characteristics are accurately reproduced to generate a highly realistic voice.
• Efficient real-time synthesis: Supports streaming synthesis with a low real-time factor (RTF) for efficient real-time speech synthesis on consumer GPUs.
• Multi-language support: Mainly trained for English and Chinese, it generates high-quality bilingual speech and is suitable for multilingual environments.
• Flexible text input: Supports both plain text and phoneme input, allowing users to select the input method as needed for more precise pronunciation control.
• Complex Text Processing: It can handle complex text such as formulas and symbols, generate corresponding speech output, and customize pronunciation correction.

Core Benefits of VoxCPM

• High naturalness: The generated speech is highly similar to real human speech in terms of rhythm, emotion, and pauses, providing a near real-life listening experience.
• Strong zero-sample cloning capability: A very small amount of reference audio is required to achieve highly realistic voice cloning that accurately replicates the speaker's timbre and style.
• good real-time performance: With efficient real-time synthesis capability, it is suitable for real-time interaction scenarios, such as intelligent voice assistant and live broadcasting.
• Multi-language support: Support for Chinese and English bilingualism, able to meet the needs of speech synthesis in multilingual environments.
• Strong text comprehension skills: It can deeply understand the text content, generate appropriate speech expressions according to the context, and adapt to different text styles.
• open source and easy to useThe program is open source on platforms like GitHub and Hugging Face, and provides rich documentation and examples for developers to quickly get started and integrate.

What is the official website for VoxCPM

• Github repository:: https://github.com/OpenBMB/VoxCPM/
• Hugging Face Model Library: https://huggingface.co/openbmb/VoxCPM-0.5B
• Online Experience Demo: https://huggingface.co/spaces/OpenBMB/VoxCPM-Demo

Who VoxCPM is for

• Speech technology developers: Developers who want to integrate high-quality speech synthesis and speech cloning features into their projects, such as developing intelligent voice assistants and voice interaction systems.
• content creator: Creators who need to generate natural speech for multimedia content such as audiobooks, podcasts, videos, etc., to enhance the appeal and professionalism of their content.
• Educators and learners: Used as a language learning tool to help learners practice pronunciation and listening, or to provide audio teaching content for online education platforms.
• Gaming and entertainment industry practitioners: Generate personalized voice for virtual characters or scenes to enhance user experience in games, animation, film and television.
• Customer Service and Call Center: Provide natural voice interaction for intelligent customer service systems to improve customer service quality and reduce labor costs.
• Multimedia and advertising industry: Quickly generate high-quality voice materials and improve production efficiency in scenes such as commercial dubbing and radio drama production.