支持Opera中的webkitSpeechRecognition API

Question

We're using the webkitSpeechRecognition API in Chrome. Since this is a prototype application, we're quite happy to support only Chrome, so we detect support for the API by doing a window.hasOwnProperty('webkitSpeechRecognition') check (as suggested by Google ). This happily fails in Firefox, but the new Opera (being webkit-based) reports it does have the property. And, indeed, all code runs as intended, except... none of the events are ever fired, no voice is ever recorded.

So, my question is: can I make it work somehow? Does it require some special permissions or settings?

Alternatively, is there a way (aside good old browser-sniffing) to detect proper, working support for the webkitSpeechRecognition?

Answer 1

Right now only google chrome have API to speech recognition by stream (they have google sppeech API).

If you will use https://www.google.com/intl/en/chrome/demos/speech.html on Opera it will tell you that you need Chrome25+ to do this.

Acording to http://caniuse.com/#feat=speech-recognition Opera webkit have support for this functionality but right now it is not working. Opera does not have any API service that would translate it on the fly. Right now there have only placeholders function in their browser, maybe in the future they will make it, right no it is not working.

* EDITED *

Example by google how to determinte if it working or not.

 // checking by google if (!('webkitSpeechRecognition' in window)) { console.log('GOOGLE: not working on this browser'); } else { console.log('GOOGLE: working'); } //your way if (window.hasOwnProperty('webkitSpeechRecognition')) { console.log('YOUR: working'); } else { console.log('YOUR: not working on this browser'); } 

Answer 2

以下Google示例使用时间戳来检测Opera未触发启动事件： https ： //www.google.com/intl/en/chrome/demos/speech.html