Text-to-speech (TTS) turns written words into spoken audio. It used to be mainly an accessibility feature; today it's also how people "listen" to articles, practice foreign languages and audition video voice-overs. The Web Speech API built into modern browsers makes TTS available in any web page without installing software. Here's how it works, how to use it, and what to watch out for.
Typical Use Cases
- Listen to long articles: paste web content and "read" it on your commute.
- Language practice: hear words and sentences pronounced, and repeat at a slower speed.
- Accessibility: text that can be heard is a core part of making content usable for people with visual impairments.
- Voice-over drafts: creators listen to their script to check flow and rhythm before recording.
How to Use an Online TTS Tool
- Enter or paste text: open the text to speech tool and add the text you want read aloud.
- Pick a language and voice: switch between languages and choose from the system voices available.
- Adjust speed and pitch: slow to 0.8× for shadowing practice, speed up to 1.5× for quick skims.
- Play: read aloud immediately, with pause, resume and stop controls.
- Keep your text: the tool saves your input so you can continue next time.
Note: web-based TTS relies on your browser and operating system's speech engines, so voice quality and language support vary by device. If you need downloadable audio files, use a cloud TTS service.
Speed and Pitch Suggestions
| Scenario | Suggested speed | Suggested pitch |
|---|---|---|
| Language shadowing | 0.6–0.8× | Default |
| Listening on the go | 1.0–1.25× | Default |
| Quick overview | ~1.5× | Slightly higher for clarity |
| Voice-over draft | 0.9–1.1× | Slightly lower for a steadier tone |
Frequently Asked Questions
Do I need to install software for web TTS?
No. The tool runs on the browser's built-in Web Speech API — open the page and start reading; no download or sign-up.
Why do I only have a few voices, or no English?
Speech engines come from your OS and browser, so voices and languages vary by device. You can add more voices in your system's speech settings.
Is my text uploaded when it's read aloud?
No. Synthesis happens on your device — the text you enter is never sent to a server.
Can I download the audio as a file?
The web tool focuses on live playback; for MP3/WAV downloads, use a cloud TTS service that supports audio export.
References
- Web Speech API (speechSynthesis) — MDN Web Docs: https://developer.mozilla.org/en-US/docs/Web/API/Web_Speech_API
- W3C Speech API specification: https://www.w3.org/TR/speech-api/