Free Text-to-Speech & Vocal Synthesis with VOICEVOX

Free Text-to-Speech & Vocal Synthesis with VOICEVOX

Experience free text-to-speech & vocal synthesis with VOICEVOX. Transform your text into lifelike speech effortlessly on our blog.

Key Highlights

  • VOICEVOX is a free and open-source text-to-speech and vocal synthesis software developed by Hiho.
  • It utilizes deep learning technology to provide high-quality speech synthesis and vocal synthesis.
  • VOICEVOX has unique text-to-speech capabilities, allowing users to customize voice output according to their preferences.
  • The software also supports multiple languages and accents, making it versatile and accessible to users from different regions.
  • VOICEVOX has practical applications in various fields, including education, content creation, and accessibility.
  • It offers a user-friendly interface and is compatible with different operating systems, making it easy for users to get started with the software.


VOICEVOX is an innovative software that brings text-to-speech and vocal synthesis to a whole new level. VOICEVOX offers users a powerful tool for creating lifelike speech and vocal expressions.

With the rise of artificial intelligence and natural language processing, speech synthesis has become an essential component in various applications. Whether you’re a content creator, an educator, or someone who simply wants to explore the possibilities of voice technology, VOICEVOX provides an open-source solution that is both accessible and versatile.

Exploring VOICEVOX: An Overview

VOICEVOX is a software that combines the power of deep learning with the art of vocal synthesis. It allows users to convert text into natural-sounding speech and create expressive vocal performances. The software is built on an open-source platform, making it accessible to developers and researchers who wish to explore and contribute to the field of speech synthesis. With its user-friendly interface and advanced features, VOICEVOX is a game-changer in the world of text-to-speech technology.


VOICEVOX is an open-source, deep learning software that specializes in speech synthesis and vocal synthesis. It utilizes advanced algorithms and deep learning models to convert text into natural-sounding speech. The software is designed to be user-friendly and accessible, allowing users to easily generate high-quality speech output.

One of the key features of VOICEVOX is its open-source nature, which means that the source code is freely available for developers to modify and improve upon. This allows for continuous development and innovation in the field of speech synthesis.

VOICEVOX also utilizes its own proprietary voicevox engine, which is specifically designed for vocal synthesis. This engine has been trained on a vast amount of data to ensure accurate and realistic vocal expressions. By leveraging deep learning techniques, VOICEVOX is able to generate speech that sounds natural and human-like.

The Evolution of VOICEVOX

VOICEVOX has come a long way since its initial release. On January 31st, 2024, the software underwent significant updates and improvements, expanding its capabilities and further enhancing the quality of its speech synthesis.

The development team behind VOICEVOX has been actively working on improving the software and incorporating the latest advancements in deep learning technology. This continuous development has led to significant improvements in the accuracy and naturalness of the speech generated by VOICEVOX.

Furthermore, the team has been focusing on further site development to provide users with a seamless and user-friendly experience. By leveraging the power of deep learning algorithms, VOICEVOX is constantly evolving to meet the needs and expectations of its users.

Key Features of VOICEVOX

VOICEVOX offers a range of key features that set it apart from other text-to-speech and vocal synthesis software. These features include:

  • Unique Text-to-Speech Capabilities: VOICEVOX uses advanced AI algorithms to generate natural-sounding speech that can be customized according to the user’s preferences.
  • Vocal Synthesis Technology: The software leverages deep learning models to create expressive vocal performances with a high degree of realism.
  • Language and Accent Support: VOICEVOX supports multiple languages and accents, making it accessible to users from different regions.
  • Easy Customization: Users can easily customize the voice output by adjusting various parameters, such as pitch, speed, and intonation.
  • User-Friendly Interface: VOICEVOX provides a user-friendly interface that makes it easy for users to navigate and generate speech output.
  • Cross-Platform Compatibility: The software is compatible with different operating systems, including Windows, Linux, and Mac.

Unique Text-to-Speech Capabilities

VOICEVOX offers unique text-to-speech capabilities that make it stand out from other software in the market. With its advanced AI algorithms, the software is able to generate natural-sounding speech that can be customized according to the user’s preferences.

Some of the key features of VOICEVOX’s text-to-speech capabilities include:

  • High-Quality Speech Synthesis: VOICEVOX utilizes advanced deep learning models to create speech that sounds natural and human-like.
  • Customization Options: Users can easily customize various aspects of the speech output, including pitch, speed, and intonation.
  • Expressive Vocal Performances: VOICEVOX allows users to create expressive vocal performances by adjusting parameters such as emotion and emphasis.
  • VOICEVOX Song Integration: The software also offers integration with VOICEVOX Song, allowing users to generate singing voices from the same text-to-speech engine.

With these unique capabilities, VOICEVOX provides users with a powerful tool for creating lifelike speech and vocal performances.

Vocal Synthesis Technology

Vocal synthesis with VOICEVOX is a sophisticated process that generates realistic vocal expressions from text using deep learning technology. By analyzing linguistic and acoustic features, the software reproduces human speech with remarkable accuracy. It goes beyond traditional text-to-speech systems by incorporating nuanced aspects like pitch, intonation, and rhythm for lifelike audio output. VOICEVOX sets new standards for engaging voice experiences.

Language and Accent Support

VOICEVOX is designed to be inclusive and accessible to users from different regions and linguistic backgrounds. The software provides support for multiple languages and accents, allowing users to generate speech output that is tailored to their specific needs.

VOICEVOX offers a range of voicebanks that cover different languages and accents. These voicebanks are trained on specific linguistic and acoustic characteristics, enabling the software to accurately reproduce the nuances of different languages and accents.

By providing language and accent support, VOICEVOX ensures that users can create speech output that is culturally and linguistically appropriate. Whether you need to generate speech in English, Japanese, or any other language, VOICEVOX has you covered.


VOICEVOX utilizes advanced deep learning algorithms and models to convert text into natural-sounding speech. The software follows a two-step process: vocal synthesis and customization.

Behind the scenes, VOICEVOX’s vocal synthesis engine leverages deep learning techniques to analyze and understand the linguistic and acoustic features of the input text. It then generates speech output that replicates the natural rhythm, intonation, and pronunciation of human speech.

Users can further customize the voice output by adjusting various parameters such as pitch, speed, and emphasis. This allows users to create personalized and expressive vocal performances that match their desired style and tone.

Behind the Scenes of Vocal Synthesis

Utilizing advanced deep learning techniques, VOICEVOX delves into the intricate process of vocal synthesis. The innovative voicevox engine powers this technology, enabling the creation of lifelike voice simulations. By leveraging open-source frameworks like Python and GitHub, VOICEVOX achieves remarkable results in speech synthesis. Through the manipulation of voicebanks and the integration of AI algorithms, the system can produce diverse vocal outputs. Moreover, the utilization of the January 31st voicebanks adds a unique dimension to the synthesis capabilities. This amalgamation of cutting-edge tools and methodologies elevates VOICEVOX to the forefront of vocal synthesis advancements.

Customizing Voice Output

Personalize voice output in VOICEVOX seamlessly to enhance user experience. Utilize the open-source software to fine-tune vocal nuances with deep learning algorithms. Integrate Python scripts to create bespoke voicebanks for exclusive projects. Modify the voicevox engine for unique speech synthesis needs. This customization allows users to craft distinct vocal styles for various applications like narrations or musical compositions, broadening possibilities in text-to-speech technologies.

Getting Started with VOICEVOX

Getting started with VOICEVOX is easy and straightforward. To use the software, you will need to ensure that your system meets the necessary requirements and follow a simple installation process.

System Requirements

VOICEVOX operates efficiently on Windows, Mac, and Linux systems with a minimum of 4GB RAM. A stable internet connection is crucial for accessing features seamlessly. Users need a moderate processor to handle the advanced deep learning algorithms for speech synthesis. Compatibility with Python is essential for custom scripts and extended functionalities to fully utilize VOICEVOX’s innovative capabilities.

Installation Guide

To install VOICEVOX, follow these simple steps:

  1. Download the installation package from the official website or the VOICEVOX GitHub repository.
  2. Run the installation package and follow the on-screen instructions.
  3. Once the installation is complete, launch the VOICEVOX software.
  4. Familiarize yourself with the user interface and explore the various features and customization options available.
  5. Start using VOICEVOX to convert text into speech or create expressive vocal performances.

For more detailed instructions and troubleshooting tips, refer to the installation guide provided on the official VOICEVOX website or the GitHub repository.

Practical Applications of VOICEVOX

VOICEVOX finds practical applications in various fields, thanks to its versatile text-to-speech and vocal synthesis capabilities. Some of the key practical applications include:

Educational Tools

In the field of education, VOICEVOX can be used as a powerful tool for creating interactive and engaging learning materials. Teachers can use the software to convert text-based content into speech, making it more accessible and engaging for students. This can be especially beneficial for students with visual impairments or learning difficulties.

VOICEVOX can also be used to create voice-guided tutorials and instructional videos. By converting written instructions into speech, students can follow along more easily and effectively understand the content.

Content Creation

Content creators can leverage VOICEVOX to enhance their creative projects. By using the software’s text-to-speech capabilities, creators can generate voiceovers for videos, podcasts, and other multimedia content. This can save time and effort compared to traditional voice recording methods.

Additionally, VOICEVOX’s vocal synthesis technology allows creators to generate realistic and expressive vocal performances. This opens up new possibilities for creating unique characters, narrations, and soundscapes in various forms of media.

Accessibility Features

VOICEVOX plays a vital role in improving accessibility by providing a text-to-speech solution that can convert written content into speech. This makes it easier for individuals with visual impairments or reading difficulties to access and understand information.

Additionally, VOICEVOX’s customizable voice output allows users to adjust the speech parameters according to their specific needs and preferences. This enhances the accessibility and usability of the software for a wide range of users.

Comparing VOICEVOX with Other Tools

VOICEVOX offers several advantages over other text-to-speech and vocal synthesis tools. However, compared to other easy-to-use text-to-speech API , it requires more learning investment to use.

Furthermore, there are numerous related audio tools available for integration: speech-to-text, speech-to-text translation, text-to-speech, instant voice cloning, and voice cloning,significantly enhancing your’s general usability and versatility make it the preferred choice for many users.

What’s more, you can easily and quickly access APIs for various programming languages on

Advantages of VOICEVOX

VOICEVOX revolutionizes text-to-speech technology with deep learning and its engine, offering exceptional speech synthesis capabilities. Its flexibility enables seamless vocal synthesis for various applications. As an open-source tool, VOICEVOX promotes site development and community collaboration. Users can download voicebanks easily and access cutting-edge vocal synthesis technology to enhance creativity. With a user-friendly interface and advanced features, VOICEVOX is a game-changer in speech synthesis, setting new standards for innovation and quality.

Considerations When Choosing a TTS Tool

When choosing a text-to-speech tool, several factors need to be considered. Some key considerations include:

  • Quality of Voice Output: The tool should provide high-quality voice output that sounds natural and realistic.
  • Customization Options: Look for a tool that allows customization of the voice output according to specific preferences and requirements.
  • Language and Accent Support: Consider a tool that offers support for multiple languages and accents, especially if you have specific language or regional requirements.
  • User-Friendly Interface: The tool should have a user-friendly interface that makes it easy to generate speech output and customize voice settings.
  • Compatibility and Integration: Ensure that the tool is compatible with your operating system and can be easily integrated into your existing workflow.

Creative Projects Using VOICEVOX

VOICEVOX provides ample opportunities for creative projects that require speech and vocal synthesis. Some of the key creative projects that can be enhanced with VOICEVOX include:

Music and Song Production

VOICEVOX Song, a feature of VOICEVOX, allows users to create singing voices using the same text-to-speech engine. This opens up possibilities for music and song production, as users can generate realistic and expressive vocal performances for their compositions.

By leveraging VOICEVOX Song, users can create virtual singers with unique characteristics and styles. These virtual singers can be used in music production, vocal synthesis projects, and even contribute to online music communities like VocaDB.

Audio Books and Narration

VOICEVOX is an excellent tool for creating audio books and narration projects. By converting written content into speech, users can generate high-quality voiceovers for audio books, podcasts, and other storytelling mediums.

The customizable voice output of VOICEVOX allows for more expressive and engaging narration performances. Users can adjust parameters such as pitch, speed, and emphasis to match the tone and style of their narration.

This makes VOICEVOX a valuable asset for authors, publishers, and content creators looking to bring their written works to life through audio.

The Future of VOICEVOX

VOICEVOX continues to evolve and improve with ongoing development and innovation. The future of VOICEVOX holds exciting possibilities, with upcoming features and community expectations.

Upcoming Features

The development team behind VOICEVOX is constantly working on adding new features and enhancements to the software. Upcoming features may include:

  • Enhanced AI Capabilities: The team is continuously researching and implementing advanced AI techniques to improve the accuracy and naturalness of the voice output.
  • Expanded Language Support: VOICEVOX may introduce support for additional languages, allowing users from different regions to utilize the software.
  • Improved Customization Options: The team is dedicated to providing users with more customization options to create unique and expressive vocal performances.

Community Expectations

The VOICEVOX community has high expectations for the software’s future development. Users and developers alike anticipate continued improvements in speech synthesis technology, enhanced usability, and expanded capabilities.

The community expects VOICEVOX to stay at the forefront of speech synthesis innovation, incorporating the latest advancements in AI and deep learning. Additionally, further collaboration between the development team and the community is expected, fostering an environment of shared knowledge and open-source contributions.


In conclusion, VOICEVOX opens up a world of possibilities with its innovative text-to-speech and vocal synthesis technologies. Its customizable voice output, language support, and unique features make it stand out in the realm of vocal synthesis tools. Whether for educational aids, content creation, or accessibility enhancements, VOICEVOX offers a versatile platform for creative projects and practical applications. As we look ahead, the future of VOICEVOX promises exciting new features that cater to diverse community expectations. Embrace the power of vocal synthesis with VOICEVOX and explore the endless opportunities it brings to the table.

Frequently Asked Questions

How to Optimize VOICEVOX for Different Languages?

To optimize VOICEVOX for different languages, ensure that you have the necessary voicebanks and language support installed. Additionally, you can customize the voice output by adjusting parameters such as pitch, speed, and intonation to match the characteristics of the target language.

Can VOICEVOX Be Used for Commercial Purposes?

Yes, VOICEVOX can be used for commercial purposes. However, it is important to review the licensing terms and conditions provided by the developers to ensure compliance with any usage restrictions or requirements. provides Stable Diffusion API and hundreds of fast and cheapest AI image generation APIs for 10,000 models.🎯 Fastest generation in just 2s, Pay-As-You-Go, a minimum of $0.0015 for each standard image, you can add your own models and avoid GPU maintenance. Free to share open-source extensions.
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