我一直在 Android 4.1 和 4.2 帖子上将 Android 语音识别称为服务，以尝试在服务中实现语音识别。
我想我做对了。在我的设备上运行时，我收到了我在 onReadyForSpeech() 函数中声明的“Ready for Speech”吐司消息。
根据为上述帖子提供答案的人Hoan Nguyen所说，我们可以在调用 onReadyForSpeech() 函数后立即开始讲话。
我的问题是我不知道如何获取我们正在讲的演讲并将其转换为文本以及在哪里进行。
有谁知道怎么做？我知道这是一个非常蹩脚的问题，但这是我第一次使用语音识别。所以请多多包涵。
非常感谢您对此的任何帮助。提前致谢 ：）
public class MyService extends Service
{
protected AudioManager mAudioManager;
protected SpeechRecognizer mSpeechRecognizer;
protected Intent mSpeechRecognizerIntent;
protected final Messenger mServerMessenger = new Messenger(new IncomingHandler(this));
protected boolean mIsListening;
protected volatile boolean mIsCountDownOn;
static final int MSG_RECOGNIZER_START_LISTENING = 1;
static final int MSG_RECOGNIZER_CANCEL = 2;
@Override
public void onCreate()
{
super.onCreate();
mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
mSpeechRecognizer.setRecognitionListener(new SpeechRecognitionListener());
mSpeechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,
this.getPackageName());
mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
//Toast.makeText(this, "onCreate", Toast.LENGTH_SHORT).show();
Log.d("onCreate","Entered");
}
protected static class IncomingHandler extends Handler
{
private WeakReference<MyService> mtarget;
IncomingHandler(MyService target)
{
mtarget = new WeakReference<MyService>(target);
Log.d("IncomingHandler","Entered");
}
@Override
public void handleMessage(Message msg)
{
Log.d("handleMessage","Entered");
final MyService target = mtarget.get();
switch (msg.what)
{
case MSG_RECOGNIZER_START_LISTENING:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN)
{
// turn off beep sound
target.mAudioManager.setStreamMute(AudioManager.STREAM_SYSTEM, true);
}
if (!target.mIsListening)
{
target.mSpeechRecognizer.startListening(target.mSpeechRecognizerIntent);
target.mIsListening = true;
Log.d("TAG", "message start listening");
//$NON-NLS-1$
}
break;
case MSG_RECOGNIZER_CANCEL:
target.mSpeechRecognizer.cancel();
target.mIsListening = false;
Log.d("TAG", "message canceled recognizer"); //$NON-NLS-1$
break;
}
}
}
// Count down timer for Jelly Bean work around
protected CountDownTimer mNoSpeechCountDown = new CountDownTimer(5000, 5000)
{
@Override
public void onTick(long millisUntilFinished)
{
// TODO Auto-generated method stub
Log.d("onTick","Entered");
}
@Override
public void onFinish()
{
Log.d("onFinish","Entered");
mIsCountDownOn = false;
Message message = Message.obtain(null, MSG_RECOGNIZER_CANCEL);
try
{
mServerMessenger.send(message);
message = Message.obtain(null, MSG_RECOGNIZER_START_LISTENING);
mServerMessenger.send(message);
}
catch (RemoteException e)
{
}
}
};
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
//mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
try
{
Message msg = new Message();
msg.what = MSG_RECOGNIZER_START_LISTENING;
mServerMessenger.send(msg);
}
catch (RemoteException e)
{
Log.d("msg",""+e);
}
return START_NOT_STICKY;
//return super.onStartCommand(intent, flags, startId);
}
@Override
public void onDestroy()
{
super.onDestroy();
if (mIsCountDownOn)
{
mNoSpeechCountDown.cancel();
}
if (mSpeechRecognizer != null)
{
mSpeechRecognizer.destroy();
}
Log.d("onDestroy","Entered");
}
protected class SpeechRecognitionListener implements RecognitionListener
{
private static final String TAG = "Sppech---->";
@Override
public void onBeginningOfSpeech()
{
// speech input will be processed, so there is no need for count down anymore
if (mIsCountDownOn)
{
mIsCountDownOn = false;
mNoSpeechCountDown.cancel();
}
//Log.d(TAG, "onBeginingOfSpeech"); //$NON-NLS-1$
Log.d("onBeginningOfSpeech","Entered");
}
@Override
public void onBufferReceived(byte[] buffer)
{
String sTest = "";
Log.d("onBufferReceived","Entered");
}
@Override
public void onEndOfSpeech()
{
//Log.d(TAG, "onEndOfSpeech"); //$NON-NLS-1$
Log.d("onEndOfSpeech","Entered");
}
@Override
public void onError(int error)
{
if (mIsCountDownOn)
{
mIsCountDownOn = false;
mNoSpeechCountDown.cancel();
}
mIsListening = false;
Message message = Message.obtain(null, MSG_RECOGNIZER_START_LISTENING);
try
{
mServerMessenger.send(message);
}
catch (RemoteException e)
{
}
//Log.d(TAG, "error = " + error); //$NON-NLS-1$
Log.d("onError","Entered");
}
@Override
public void onEvent(int eventType, Bundle params)
{
}
@Override
public void onPartialResults(Bundle partialResults)
{
}
@Override
public void onReadyForSpeech(Bundle params)
{
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN)
{
mIsCountDownOn = true;
mNoSpeechCountDown.start();
mAudioManager.setStreamMute(AudioManager.STREAM_SYSTEM, false);
}
//Log.d("TAG", "onReadyForSpeech");
Toast.makeText(getApplicationContext(), "Ready for Speech", Toast.LENGTH_SHORT).show();
Log.d("onReadyForSpeech","Entered");//$NON-NLS-1$
}
@Override
public void onResults(Bundle results)
{
//Log.d(TAG, "onResults"); //$NON-NLS-1$
}
@Override
public void onRmsChanged(float rmsdB)
{
}
}
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
}