SpeechRecognition: error event

Limited availability

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

The error event of the Web Speech API SpeechRecognition object is fired when a speech recognition error occurs.

Syntax

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

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

onerror = (event) => { }

Event type

A SpeechRecognitionErrorEvent. Inherits from Event.

Event properties

In addition to the properties listed below, properties from the parent interface, Event, are available.

SpeechRecognitionErrorEvent.error Read only: Returns the type of error raised.
SpeechRecognitionErrorEvent.message Read only: Returns a message describing the error in more detail.

Examples

You can use the error event in an addEventListener method:

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

recognition.addEventListener("error", (event) => {
  console.error(`Speech recognition error detected: ${event.error}`);
});

Or use the onerror event handler property:

recognition.onerror = (event) => {
  console.error(`Speech recognition error detected: ${event.error}`);
};

Specifications

Specification
Web Speech API # eventdef-speechrecognition-error
Web Speech API # dom-speechrecognition-onerror