Open-Audio TTS
Open-Audio TTS is a Text-to-Speech tool developed utilizing OpenAI's technology. The fundamental function of this tool is to convert input ...
Last verified:
What is Open-Audio TTS?
Open-Audio TTS is a web application that converts text into natural-sounding speech using OpenAI's text-to-speech models. The tool provides an intuitive user interface built with Chakra UI, enabling users to generate and download high-quality speech audio files directly from their browser.
Key features include text-to-speech conversion with six built-in voices (Alloy, Echo, Fable, Onyx, Nova, and Shimmer), customizable voice selection, adjustable speech speed control, and the ability to download generated audio as MP3 files. The application supports a character limit of 4096 characters per input and offers high-quality audio output.
The tool is designed for content creators, developers, educators, and anyone who needs to convert written text into spoken audio. It is particularly useful for creating audio content for podcasts, audiobooks, accessibility tools, video narration, language learning materials, and accessibility applications for visually impaired users.
A distinguishing feature is its Bring Your Own (BYO) API key model, meaning users must provide their own OpenAI API key and no data is stored on the server side, ensuring privacy and giving users full control over their API usage and costs.
The application is built with Next.js and can be self-hosted or deployed on Vercel, making it accessible across different devices with its responsive design that provides a comfortable experience on desktops, tablets, and mobile devices.
Open-Audio TTS pricing
Pricing model: Free
The tool itself is free to use as it is open source under MIT License. However, users must provide their own OpenAI API key and pay for OpenAI TTS API usage separately. There is no subscription or tiered pricing from Open-Audio TTS itself - costs depend entirely on your OpenAI API usage based on characters processed through OpenAI's TTS API.
Open-Audio TTS pros
- Powered by OpenAI's high-quality TTS models
- Six different voice options to choose from
- Adjustable speech speed control
- Download audio directly as MP3 files
- BYO API key - no server-side data storage
- Intuitive Chakra UI interface
- Responsive design works on all devices
- High-quality audio output
- Supports 4096 characters per input
- Open source - can self-host
- Easy deployment on Vercel
- No account registration required
- Immediate audio playback before download
- Supports multiple languages via OpenAI TTS
- Free to use (only pay for OpenAI API)
Open-Audio TTS cons
- Requires your own OpenAI API key
- You pay for OpenAI API usage separately
- Maximum 4096 characters per input
- Only 6 voice options available
- Voices optimized primarily for English
- No voice cloning capabilities
- No batch processing for multiple texts
- No audio editing features
Frequently asked questions about Open-Audio TTS
What is Open-Audio TTS?
Open-Audio TTS is a web application that converts text into natural-sounding speech using OpenAI's text-to-speech models. It provides an intuitive interface for generating and downloading high-quality speech audio files directly from your browser.
Do I need an OpenAI API key to use this tool?
Yes, you need to provide your own OpenAI API key to use Open-Audio TTS. This is a Bring Your Own (BYO) API key model, which means no data is stored on the server side and you maintain full control over your API usage.
What voices are available?
Open-Audio TTS offers six built-in voices powered by OpenAI: Alloy, Echo, Fable, Onyx, Nova, and Shimmer. You can select any of these voices from the dropdown menu to match your desired tone and audience.
Can I adjust the speech speed?
Yes, Open-Audio TTS includes an adjustable speed control that lets you modify the speech rate to match your preferred listening pace. You can increase or decrease the speed before generating the audio.
What audio format is downloaded?
The generated speech is downloaded as an MP3 file directly from your browser. You can click the 'Download MP3' button to save the audio file to your device after generating it.
What is the character limit for input text?
Open-Audio TTS supports up to 4096 characters per input. The interface shows a character counter (0/4096) to help you track how many characters you have entered.
Does Open-Audio TTS store my data?
No, Open-Audio TTS does not store any data on the server side. With the BYO API key model, your text and API key are processed client-side, ensuring privacy and giving you full control over your data.
Can I use this tool on mobile devices?
Yes, Open-Audio TTS is built with responsiveness in mind and offers a comfortable experience across different devices including desktops, tablets, and mobile phones.
Is the tool free to use?
The Open-Audio TTS web application itself is free and open source under the MIT License. However, you need to pay for your own OpenAI API usage based on the number of characters you process through OpenAI's TTS service.
Can I self-host Open-Audio TTS?
Yes, Open-Audio TTS is open source and can be self-hosted. You can clone the GitHub repository, install dependencies with npm install, and run it locally with npm run dev, or deploy it on Vercel using the Next.js platform.