SpeechSynthesisUtterance

SpeechSynthesisUtterance is a web API that provides a way to generate and control speech synthesis in web applications. It is part of the Web Speech API, which allows for the integration of speech recognition and synthesis capabilities into web browsers. The SpeechSynthesisUtterance interface represents a speech request. It contains the content the speech service should read and information about how to read it (such as language, pitch, and rate).

To use SpeechSynthesisUtterance, a developer creates an instance of the interface and sets its properties to define the text to be spoken and the parameters of the speech, such as the language, pitch, rate, and volume. The instance is then passed to the SpeechSynthesis.speak() method to initiate the speech synthesis process.

The SpeechSynthesisUtterance interface also provides event handlers for monitoring the progress of the speech synthesis. These include the onstart, onend, onerror, onpause, and onresume events, which allow developers to respond to various stages of the speech synthesis process.

SpeechSynthesisUtterance is supported in most modern web browsers, including Google Chrome, Mozilla Firefox, Microsoft Edge, and Safari. However, the level of support and the specific features available may vary between browsers. Developers should consult the documentation for their target browsers to ensure compatibility and to take advantage of any browser-specific features.

In summary, SpeechSynthesisUtterance is a powerful tool for integrating speech synthesis into web applications. It provides a simple and flexible way to generate speech from text, with support for various languages and speech parameters. By using the SpeechSynthesisUtterance interface and the associated event handlers, developers can create engaging and accessible web experiences that leverage the power of speech synthesis.