我正在开发一个使用android SpeechRecognizer的应用程序。我用它来做一些简单的事情。我点击一个按钮,我的SpeechRecognizer开始收听,我从我所说的内容中得到了一些结果。
容易对吗?好吧,我的问题是我需要快速制作SpeechRecognizer。我的意思是,我点击我的按钮,我说“你好”,而SpeechRecognizer需要3-4秒才能获得可能结果的数组。我的问题是:
有可能使SpeechRecognizer更快地返回结果吗? 或者花更少的时间来关闭听力意图并开始处理它听的内容? 也许另一种方式呢?哪个会比这更好?
我正在检查库,我看到了这三个参数:
EXTRA_SPEECH_INPUT_MINIMUM_LENGTH_MILLIS:
我们停止听取演讲后应考虑的时间 输入完成。
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是它不起作用,或者我可能没有使用它们。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)
{
}
}}
谢谢大家的时间!希望有人可以帮助我一点:P!
答案 0 :(得分:2)
是的,可以减少关机前的延迟....
您无法改变Google在用户发言结束时认为沉默的时间。过去使用的EXTRA_SPEECH_*
参数,现在它们似乎偶尔会起作用,或根本不起作用。
您可以做的是使用部分结果来检测您想要的单词或短语,然后手动关闭识别服务。
以下是如何执行此操作的示例:
public boolean isHelloDetected(@NonNull final Context ctx, @NonNull final Locale loc, @NonNull final Bundle results) {
boolean helloDetected = false;
if (!results.isEmpty()) {
final String hello = ctx.getString(R.string.hello);
final ArrayList<String> partialData = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
/* handles empty string bug */
if (partialData != null && !partialData.isEmpty()) {
partialData.removeAll(Collections.singleton(""));
if (!partialData.isEmpty()) {
final ListIterator<String> itr = partialData.listIterator();
String vd;
while (itr.hasNext()) {
vd = itr.next().toLowerCase(loc).trim();
if (vd.startsWith(hello)) {
helloDetected = true;
break;
}
}
}
}
if (!helloDetected) {
final ArrayList<String> unstableData = results.getStringArrayList("android.speech.extra.UNSTABLE_TEXT");
/* handles empty string bug */
if (unstableData != null && !unstableData.isEmpty()) {
unstableData.removeAll(Collections.singleton(""));
if (!unstableData.isEmpty()) {
final ListIterator<String> itr = unstableData.listIterator();
String vd;
while (itr.hasNext()) {
vd = itr.next().toLowerCase(loc).trim();
if (vd.startsWith(hello)) {
helloDetected = true;
break;
}
}
}
}
}
}
return helloDetected;
}
每次收到onPartialResults()
如果返回true,则您需要在主线程上调用stopListening()
(可能是new Handler(Looper.getMainLooper()).post(...
请注意,一旦您关闭了识别器,您在onResults()
收到的后续和最终结果可能不包含&#34;您好&#34;。因为这个词可能只被归类为不稳定。
您需要编写其他逻辑以防止在检测到hello后使用detectHello()
(否则您将反复调用stopListening()
) - 一些简单的布尔标记可以解决此问题。
最后,使用Collections.singleton("")
删除空字符串是内部错误报告details to replicate here的一部分,使用ListIterator可能对您的样本而言过度杀伤;一个简单的for循环就足够了。