我正在使用Web Speech API在chrome(HTML5)上实现语音识别,在Windows和android上一切正常,然后我决定在代码中添加录音功能。当我在Android设备上在网络错误下方添加代码行时,但在台式机Chrome上仍然可以正常使用。 这是每次都会使android HTML5版本崩溃的代码。如果我删除此代码,我的项目将再次运行... 非常感谢它发生的原因以及如何解决此问题的任何想法...
navigator.mediaDevices.getUserMedia({audio:true})
.then(stream => {
rec = new MediaRecorder(stream);
rec.ondataavailable = e => {
audioChunks.push(e.data);
if (rec.state == "inactive"){
let blob = new Blob(audioChunks,{type:'audio/x-mpeg-3'});
recordedAudio.src = URL.createObjectURL(blob);
如果有帮助,这里是我用来进行语音识别的简化代码:
var SpeechRecognition = SpeechRecognition || webkitSpeechRecognition;
var SpeechGrammarList = SpeechGrammarList || webkitSpeechGrammarList;
var SpeechRecognitionEvent = SpeechRecognitionEvent || webkitSpeechRecognitionEvent;
var recognition = new SpeechRecognition();
var speechRecognitionList = new SpeechGrammarList();
recognition.grammars = speechRecognitionList;
recognition.lang = 'en-GB';
recognition.interimResults = false;
recognition.maxAlternatives = 1;
recognition.start();
recognition.onresult = function(event) {
var speechResult = event.results[0][0].transcript;
//return speech and change storyline variable with a result
var player = GetPlayer();
player.SetVar("SpeechReceived",speechResult);
console.log('Confidence: ' + event.results[0][0].confidence);
}
recognition.onspeechend = function() {
recognition.stop();
console.log('Speech ended!');
}
recognition.onerror = function(event) {
console.log('Error occurred in recognition: ' + event.error);
}
recognition.onaudiostart = function(event) {
//Fired when the user agent has started to capture audio.
console.log('SpeechRecognition.onaudiostart');
}
recognition.onaudioend = function(event) {
//Fired when the user agent has finished capturing audio.
console.log('SpeechRecognition.onaudioend');
}
recognition.onend = function(event) {
//Fired when the speech recognition service has disconnected.
console.log('SpeechRecognition.onend');
}
recognition.onnomatch = function(event) {
//Fired when the speech recognition can't recognise speech
console.log('SpeechRecognition.onnomatch');
}
recognition.onsoundstart = function(event) {
//Fired when any sound — recognisable speech or not — has been detected.
console.log('SpeechRecognition.onsoundstart');
}
recognition.onsoundend = function(event) {
//Fired when no sound present
console.log('SpeechRecognition.onsoundend');
}
recognition.onspeechstart = function (event) {
//Fired when speech starts
console.log('SpeechRecognition.onspeechstart');
}
recognition.onstart = function(event) {
//Fired when the speech recognition service has begun listening
console.log('SpeechRecognition.onstart');
}