The error read-only property of the SpeechRecognitionErrorEvent interface returns the type of error raised.

Syntax

var myError = event.error;
Value
A DOMString naming the type of error. The possible error types are:
 
no-speech
 
No speech was detected.
 
aborted
 
Speech input was aborted in some manner, perhaps by some user-agent-specific behavior like a button the user can press to cancel speech input.
 
audio-capture
 
Audio capture failed.
 
network
 
Network communication required for completing the recognition failed.
 
not-allowed
 
The user agent disallowed any speech input from occurring for reasons of security, privacy or user preference.
 
service-not-allowed
 
The user agent disallowed the requested speech recognition service, either because the user agent doesn't support it or because of reasons of security, privacy or user preference. In this case it would allow another more suitable speech recognition service to be used instead.
 
bad-grammar
 
There was an error in the speech recognition grammar or semantic tags, or the chosen grammar format or semantic tag format was unsupported.
 
language-not-supported
 
The language was not supported.
Examples
var recognition = new SpeechRecognition();
recognition.onerror = function(event) {
  console.log('Speech recognition error detected: ' + event.error);
  console.log('Additional information: ' + event.message);
Specifications
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop
Mobile
Chrome
Edge
Firefox
Internet Explorer
Opera
Safari
Android webview
Chrome for Android
Firefox for Android
Opera for Android
Safari on iOS
Samsung Internet
error 
Experimental
Chrome
                Full support
              77
Edge
                Full support
              79
Firefox
                No support
              No
IE
                No support
              No
Opera
                No support
              No
Safari
                No support
              No
WebView Android
                Full support
              77
Chrome Android
                Full support
              77
Firefox Android
                No support
              No
Opera Android
                No support
              No
Safari iOS
                No support
              No
Samsung Internet Android
                Full support
              12.0
Legend

                 Full support
                
Full support

                 No support
                
No support
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

See also
 
Web Speech API
      
Related Topics
SpeechRecognitionErrorEvent
Properties
 error
 message
Related pages for Web Speech API
SpeechGrammar
SpeechGrammarList
SpeechRecognition
SpeechRecognitionAlternative
SpeechRecognitionError
SpeechRecognitionEvent
SpeechRecognitionResult
SpeechRecognitionResultList
SpeechSynthesis
SpeechSynthesisErrorEvent
SpeechSynthesisEvent
SpeechSynthesisUtterance
SpeechSynthesisVoice
       
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