webrtc 语音流java_通过WebView WebRTC从麦克风传输语音时的语音识别
我正在編寫一個具有WebView的應用程序，它通過WebRTC處理語音呼叫 . 麥克風工作正常，因為我已授予WebView權限 .
webView.setWebChromeClient(new WebChromeClient() {
@Override
public void onPermissionRequest(final PermissionRequest request) {
request.grant(request.getResources());
}
后來我決定添加SpeechRecognizer，以便我能夠在WebRTC調用期間識別出我在說什么 . 我嘗試在同一個活動中進行語音識別工作，后來我在一個單獨的服務中完成了它，但不幸的是，它不允許同時工作 . 麥克風被WebView占用，而SpeechRecognizer沒有任何聲音(RMS一直是-2.12) . 或者，如果我在通過WebView撥打電話之前嘗試運行服務，我打電話給的人根本聽不到我的聲音(SpeechRecognizer占用麥克風而WebView沒有得到任何東西) . 如果存在，我希望找到任何解決方案 . 我不是iOS開發人員，但我聽說，它可能在iPhone上，所以這是一個驚喜，這在Android設備上是不可能的 . 我的語音識別服務代碼公共類RecognitionService extends Service實現RecognitionListener {
private String LOG_TAG = "RecognitionService";
private SpeechRecognizer speech = null;
private Intent recognizerIntent;
public RecognitionService() {
}
@Override
public IBinder onBind(Intent intent) {
// TODO: Return the communication channel to the service.
startRecognition();
return null;
}
@Override
public void onCreate() {
Log.i("Test", "RecognitionService: onCreate");
startRecognition();
}
private void startRecognition() {
speech = SpeechRecognizer.createSpeechRecognizer(this);
speech.setRecognitionListener(this);
recognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
recognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE,
"ru-RU");
recognizerIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,
getPackageName());
recognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH);
recognizerIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 3);
speech.startListening(recognizerIntent);
}
@Override
public void onBeginningOfSpeech() {
Log.i(LOG_TAG, "onBeginningOfSpeech");
}
@Override
public void onBufferReceived(byte[] buffer) {
Log.i(LOG_TAG, "onBufferReceived: " + buffer);
}
@Override
public void onEndOfSpeech() {
Log.i(LOG_TAG, "onEndOfSpeech");
}
@Override
public void onError(int errorCode) {
String errorMessage = getErrorText(errorCode);
Log.d(LOG_TAG, "FAILED " + errorMessage);
speech.destroy();
startRecognition();
}
@Override
public void onEvent(int arg0, Bundle arg1) {
Log.i(LOG_TAG, "onEvent");
}
@Override
public void onPartialResults(Bundle arg0) {
Log.i(LOG_TAG, "onPartialResults");
}
@Override
public void onReadyForSpeech(Bundle arg0) {
Log.i(LOG_TAG, "onReadyForSpeech");
}
@Override
public void onResults(Bundle results) {
Log.i(LOG_TAG, "onResults");
ArrayList matches = results
.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
String text = "";
for (String result : matches)
text += result + "\n";
Toast.makeText(getApplicationContext(),text,Toast.LENGTH_SHORT).show();
speech.destroy();
startRecognition();
}
public static String getErrorText(int errorCode) {
String message;
switch (errorCode) {
case SpeechRecognizer.ERROR_AUDIO:
message = "Audio recording error";
break;
case SpeechRecognizer.ERROR_CLIENT:
message = "Client side error";
break;
case SpeechRecognizer.ERROR_INSUFFICIENT_PERMISSIONS:
message = "Insufficient permissions";
break;
case SpeechRecognizer.ERROR_NETWORK:
message = "Network error";
break;
case SpeechRecognizer.ERROR_NETWORK_TIMEOUT:
message = "Network timeout";
break;
case SpeechRecognizer.ERROR_NO_MATCH:
message = "No match";
break;
case SpeechRecognizer.ERROR_RECOGNIZER_BUSY:
message = "RecognitionService busy";
break;
case SpeechRecognizer.ERROR_SERVER:
message = "error from server";
break;
case SpeechRecognizer.ERROR_SPEECH_TIMEOUT:
message = "No speech input";
break;
default:
message = "Didn't understand, please try again.";
break;
}
return message;
}
@Override
public void onRmsChanged(float rmsdB) {
Log.i(LOG_TAG, "onRmsChanged: " + rmsdB);
}
}
總結
以上是生活随笔為你收集整理的webrtc 语音流java_通过WebView WebRTC从麦克风传输语音时的语音识别的全部內容，希望文章能夠幫你解決所遇到的問題。
- 上一篇： 面向对象发牌Java_面向对象思路的斗地
- 下一篇： java接口和实例_java – 接口和