W3cubDocs

/Web APIs

SpeechRecognition: audiostart event

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The audiostart event of the Web Speech API is fired when the user agent has started to capture audio for speech recognition.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener("audiostart", (event) => { })

onaudiostart = (event) => { }

Event type

A generic Event with no added properties.

Examples

You can use the audiostart event in an addEventListener method:

const recognition = new (SpeechRecognition || webkitSpeechRecognition)();

recognition.addEventListener("audiostart", () => {
  console.log("Audio capturing started");
});

Or use the onaudiostart event handler property:

recognition.onaudiostart = () => {
  console.log("Audio capturing started");
};

Specifications

Specification
Web Speech API> # eventdef-speechrecognition-audiostart>
Web Speech API> # dom-speechrecognition-onaudiostart>

Browser compatibility