that micro lib will help You with web speech api

Parse an intent utterance file, like the Alexa Skills Kit Sample Utterance file.

SDK for capturing utterance history.

Utterance Resolution SDK

Expand custom utterance slots of phrases, to use with Alexa Skills Kit Sample Utterances

Expand custom utterance slots of phrases, to use with Alexa Skills Kit Sample Utterances

React HOC for Utterance comment widget

utility functions that normalize utterance texts

Text macro expansion tailored for Alexa/Lex utterance syntax.

Alexa Skill Utterance Builder GUI powered by alexa-utteranaces

A React component that synthesis text into speech using Web Speech API

Simple End of Utterance (EOU) detection using LiveKit's ML model. Tells you the probability that someone is done speaking.

A simple utterance file to markdown text parser

Multi-platform Utterance Registry for Botkit

A TypeScript library for converting AssemblyAI transcripts to ASS subtitle files with multiple display strategies (full utterance, word-by-word, karaoke, word highlight) and natural sentence splitting

Helper to create the utterance strings for an Amazon Echo skill

Browser/JavaScript SDK for SAA, the addressee layer for voice agents — emits a turn_ready event per device-directed utterance so only speech meant for your agent reaches your STT, LLM, or TTS. No wake word.

Client-side semantic endpointing. Know when they're done talking.

Sample utterance generator for Amazon Echo apps

Compiles short-hand notation for alexa utterances into exhaustive utterances needed by Alexa