【发布时间】：2016-04-29 20:48:44
【问题描述】：
我正在开发一个使用 android SpeechRecognizer 的应用程序。我用它做一些简单的事情。我点击一个按钮，我的 SpeechRecognizer 开始收听，我从我说的内容中得到了一些结果。
简单吧？好吧，我的问题是我需要让 SpeechRecognizer 快速。我的意思是，我点击我的按钮，我说“你好”，SpeechRecognizer 大约需要 3-4 秒才能返回一个包含可能结果的数组。我的问题是：
是否可以让 SpeechRecognizer 返回结果更快？ 或者花更少的时间来关闭 Listening 意图并开始处理它所听的内容？ 也许另一种方式来做到这一点？哪个会有比这更好的性能？
我正在检查库，我看到了这 3 个参数：
EXTRA_SPEECH_INPUT_MINIMUM_LENGTH_MILLIS：
在我们停止听到语音后认为输入完成应该花费的时间。
EXTRA_SPEECH_INPUT_COMPLETE_SILENCE_LENGTH_MILLIS
话语的最小长度。
EXTRA_SPEECH_INPUT_POSSIBLY_COMPLETE_SILENCE_LENGTH_MILLIS
我们停止听到讲话后应该花费的时间 考虑输入可能完成。
http://developer.android.com/intl/es/reference/android/speech/RecognizerIntent.html
我已经尝试了所有这些，但它不起作用，或者我没有正确使用它们。这是我的代码：
public class MainActivity extends Activity {
private static final String TIME_FORMAT = "%02d:%02d:%02d";
private final String TAG = "MainActivity";
private StartTimerButton mSpeakButton;
private CircleProgressBar mCountdownProgressBar;
private CountDownTimer mCountDownTimer;
private TextView mTimer;
private int mRunSeconds = 0;
private SpeechRecognizer mSpeechRecognizer;
private Intent mSpeechRecognizerIntent;
private boolean mIsListening = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRunSeconds = 0;
mTimer = (TextView) findViewById(R.id.timerText);
mCountdownProgressBar = (CircleProgressBar) findViewById(R.id.progressBar);
mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
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());
// mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_MINIMUM_LENGTH_MILLIS,
// 1000);
// mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_COMPLETE_SILENCE_LENGTH_MILLIS,
// 1000);
// mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_POSSIBLY_COMPLETE_SILENCE_LENGTH_MILLIS,
// 1000);
SpeechRecognitionListener listener = new SpeechRecognitionListener();
mSpeechRecognizer.setRecognitionListener(listener);
mSpeakButton = (StartTimerButton) findViewById(R.id.btnSpeak);
mSpeakButton.setReadyState(false);
mSpeakButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mSpeakButton.isReady()) {
if (!mIsListening)
mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
} else
mSpeakButton.setReadyState(true);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
return true;
}
public void onSpeechResults(ArrayList<String> matches) {
for (String match : matches) {
match = match.toLowerCase();
Log.d(TAG, "Got speech: " + match);
if (match.contains("go")) {
//Do Something
mSpeechRecognizer.stopListening();
}
if (match.contains("stop")) {
//Do Something
mSpeechRecognizer.stopListening();
}
}
}
protected class SpeechRecognitionListener implements RecognitionListener
{
@Override
public void onBeginningOfSpeech()
{
//Log.d(TAG, "onBeginingOfSpeech");
}
@Override
public void onBufferReceived(byte[] buffer)
{
}
@Override
public void onEndOfSpeech()
{
//Log.d(TAG, "onEndOfSpeech");
}
@Override
public void onError(int error)
{
mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
//Log.d(TAG, "error = " + error);
}
@Override
public void onEvent(int eventType, Bundle params)
{
}
@Override
public void onPartialResults(Bundle partialResults)
{
ArrayList<String> matches = partialResults.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
for (String match : matches) {
match = match.toLowerCase();
Log.d(TAG, "onPartialResults : " + match);
}
}
@Override
public void onReadyForSpeech(Bundle params)
{
Log.d(TAG, "onReadyForSpeech"); //$NON-NLS-1$
}
@Override
public void onResults(Bundle results)
{
//Log.d(TAG, "onResults"); //$NON-NLS-1$
ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
onSpeechResults(matches);
// matches are the return values of speech recognition engine
// Use these values for whatever you wish to do
}
@Override
public void onRmsChanged(float rmsdB)
{
}
}}
【问题讨论】：
-
不，考虑使用更灵活的识别器
-
你能给我一些关于我可以使用的其他识别器的建议吗？
标签： android performance speech-recognition voice-recognition