Make online learning, assessments and workplace projects more accessible

SpeechStream makes online content more accessible by embedding text-to-speech with word-by-word highlighting. Easily add text to speech into your platform to support learners, exam takers and employees with diverse literacy, language and accessibility needs.

Users can see and hear content read aloud, improving comprehension and reducing cognitive load especially for those with dyslexia, ADHD or English as an additional language.

Best of all, there’s nothing for your users to install, since it works right within your content.

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Make your online content more accessible for everyone

Easy to implement for content providers—no software to install for users

SpeechStream integrates effortlessly into online content, making it simple to provide enhanced accessibility. Developers can also customize implementations for more involved projects. By embedding text to speech and reading support tools, you ensure all users, especially those with reading challenges, have the tools they need to succeed.

Tools that adapt to each learner’s needs

SpeechStream offers a range of support features. Including text-to-speech with word-by-word highlighting, dynamic text magnification, screen masking to reduce distractions, translation for multilingual learners, and built-in dictionaries to support vocabulary and comprehension.

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Tools for developers and product managers to fine-tune the text-to-speech experience

Speechstream is designed to reduce the effort, time and expense required to include text-to-speech and other reading support features in online content. Need to adjust pronunciation for industry-specific words or acronyms? Want to prevent specific text from being read aloud? SpeechStream gives developers full control over tuning the read aloud experience to match project requirements.

All inside one customizable toolbar

SpeechStream adds to your platform dynamic, accessible experiences with:

Text-to-speech with visual tracking

Reads on-screen text aloud while highlighting each word, improving comprehension for those with reading difficulties.

Advanced AI voices

Compelling, rich and lifelike voices from Elevenlabs in our text-to-speech feature can help with focus, comprehension, and overall enjoyment of content.

Translation

Dynamically translates words and phrases into over 100 languages, allowing users to engage with content in their preferred language.

Dictionary and picture dictionary

Users can look up words, hear definitions spoken aloud, and see visual representations, helping with vocabulary development.

Screen masking

Reduce visual strain with adjustable screen masking, helping users focus and minimize distractions.

Text magnification

Magnifies text while reading aloud, with word-by-word highlighting to enhance accessibility.

Designed for easy implementation and long-term support

Works with text, math, and SSML in HTML.

Instantly available when users open your online content. No installation required.

Integrates with leading voice providers, offering standard, neural network, and advanced AI voices.

Flexible implementation: use the default UI or fully customize the experience.

Online knowledge base and expert support to guide implementation.

SpeechStream automates everything , so the developer no longer needs to pre-record and link MP3 files to the content.

If you're exploring options for embedding text to speech in your platform, let's talk about how SpeechStream can bring value to your project.

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Pricing options

Tailored pricing for your needs

Every project is unique. Reach out to discuss pricing based on your specific requirements.

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Trusted by leading providers of online content and assessments

SpeechStream works seamlessly with Learnosity to offer enhanced text-to-speech capabilities, helping users with visual impairments, reading disabilities, or language barriers engage with content.”

Vikram Pai, Product Manager at Learnosity

Frequently asked questions

Why should you add text-to-speech to your online content, and who does it help?

Text-to-speech with word-by-word highlighting helps people hear and see text at the same time. This makes reading easier by reducing mental effort and guiding the eyes through the content. Text-to-speech is especially helpful for people with dyslexia, ADHD, or those learning English. It benefits many others too, around 20% of the world’s population has some form of reading challenge. Adding text-to-speech to your online content improves accessibility and makes reading easier for more people.

Why use SpeechStream to add text-to-speech?

SpeechStream makes it easy for website and app owners to add text-to-speech and other reading support tools to their content. It reduces the work for your development team, helping you launch faster, stay on budget, and get expert support. Our company has specialized in text-to-speech since 1996, and SpeechStream has been continuously improved since its first launch in 2008. Beyond text-to-speech, SpeechStream offers:

Translation into over 100 languages, many with voice options
Screen masking to reduce distractions
Dynamic text magnification while reading aloud
Vocabulary support with a talking dictionary and picture dictionary

How does SpeechStream work?

SpeechStream makes it simple and cost-effective to add text-to-speech and reading support to your content. To get started, just add one script to your website’s HTML. SpeechStream will automatically load a toolbar that gives users access to TTS and other tools. If you want a custom setup, SpeechStream supports flexible options for developers, with hundreds of function calls to fine-tune the user experience. SpeechStream also provides real-time audio, reading text aloud instantly. No need to pre-record audio or manually link MP3 files. Best of all, because SpeechStream is built into your content, users don’t need to install anything, it just works.

What voice technology does SpeechStream use?

SpeechStream works with multiple voice providers. This provides us with the flexibility to source the very best voices from different voice companies for your projects. You can access:

Standard voices
Neural network voices
High-quality AI voices

SpeechStream offers multiple voice choices in each language, helping you find the best option for your project.

Can SpeechStream be used in assessments?

Yes! SpeechStream is a great choice for online assessments in education and the workplace.

Using a secure browser? No problem! Because SpeechStream is built into the assessment, it won’t be blocked.
Need text-to-speech for certain sections but not others? We provide tools to control access.
Have industry-specific words that need to be pronounced correctly? SpeechStream lets you customize pronunciations.

Can SpeechStream read math content?

Yes. SpeechStream supports different ways of displaying math online:

Our symbol filter adds voice to basic math symbols typed directly into content
If math is added as an image, and Alternative text (alt text) is included, then SpeechStream will read it aloud in the correct way
SpeechStream is also compatible with math created in MathML and MathJax. It will highlight each character in an equation as it reads aloud. If the default speech output isn’t right, you can override it with custom spoken math.

What support is available for developers?

We have a self-serve knowledge base with setup guides, API references, demos, and release notes. We have a dedicated team who will guide you through implementation. The team will provide support by email or web calls. Trial access is available to test SpeechStream in your content before going live.