SpeechSynthesis for TTS)

A native Web Speech API interface that enables browsers to convert text strings into audible speech using device-resident synthesis engines.

SpeechSynthesis provides a robust, zero-latency gateway to local system voices (like macOS 'Samantha' or Windows 'David') without requiring external API calls or cloud credits. Developers control the playback queue via the SpeechSynthesisUtterance object, allowing precise manipulation of rate (0.1 to 10), pitch (0 to 2), and volume. This interface is supported across 95% of modern browsers, making it the standard for accessible UI feedback and hands-free web navigation.

https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesis