更新：在我今天的测试中，这个错误似乎终于得到了解决，这不再是必要的。留下它以防将来再次损坏。根据我的测试，语音超时工作正常。
好的，我知道这非常难看，但它似乎可以使用 onPartialResults （我理解 onPartialResults 的陷阱，但我已经尝试过几次了，直到谷歌修复了这个荒谬的错误！）我还没有详尽地测试过它然而（我将在应用程序中使用它时会发回结果）但我迫切需要一个解决方案。基本上，我使用 onRmsChanged 来触发用户说完，假设当 RmsDb 低于峰值并且 2 秒内没有 onPartialResults 时，我们就完成了。
我不喜欢这件事的一件事是摧毁 SR 会发出双 uh-oh 哔哔声。FWIW 和 YMMV。请发布任何改进！
注意：如果您要重复使用它，请不要忘记重置 bBegin 和 fPeak！您还需要重新创建 SR（onStartCommand 或停止并启动服务。）
import android.app.Service;
import android.content.Intent;
import android.os.Bundle;
import android.os.IBinder;
import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.support.annotation.Nullable;
import android.util.Log;
import java.util.ArrayList;
public class SpeechToTextService extends Service {
private String TAG = "STT";
float fPeak;
boolean bBegin;
long lCheckTime;
long lTimeout = 2000;
@Override
public void onCreate() {
super.onCreate();
bBegin = false;
fPeak = -999; //Only to be sure it's under ambient RmsDb.
final SpeechRecognizer sr = SpeechRecognizer.createSpeechRecognizer(getApplicationContext());
sr.setRecognitionListener(new RecognitionListener() {
@Override
public void onReadyForSpeech(Bundle bundle) {
Log.i(TAG, "onReadyForSpeech");
}
@Override
public void onBeginningOfSpeech() {
bBegin = true;
Log.i(TAG, "onBeginningOfSpeech");
}
@Override
public void onRmsChanged(float rmsDb) {
if(bBegin) {
if (rmsDb > fPeak) {
fPeak = rmsDb;
lCheckTime = System.currentTimeMillis();
}
if (System.currentTimeMillis() > lCheckTime + lTimeout) {
Log.i(TAG, "DONE");
sr.destroy();
}
}
//Log.i(TAG, "rmsDB:"+rmsDb);
}
@Override
public void onBufferReceived(byte[] buffer) {
Log.i(TAG, "onBufferReceived");
}
@Override
public void onEndOfSpeech() {
Log.i(TAG, "onEndOfSpeech");
}
@Override
public void onError(int error) {
Log.i(TAG, "onError:" + error);
}
@Override
public void onResults(Bundle results) {
ArrayList data = results.getStringArrayList(
SpeechRecognizer.RESULTS_RECOGNITION);
String sTextFromSpeech;
if (data != null) {
sTextFromSpeech = data.get(0).toString();
} else {
sTextFromSpeech = "";
}
Log.i(TAG, "onResults:" + sTextFromSpeech);
}
@Override
public void onPartialResults(Bundle bundle) {
lCheckTime = System.currentTimeMillis();
ArrayList data = bundle.getStringArrayList(
SpeechRecognizer.RESULTS_RECOGNITION);
String sTextFromSpeech;
if (data != null) {
sTextFromSpeech = data.get(0).toString();
} else {
sTextFromSpeech = "";
}
Log.i(TAG, "onPartialResults:" + sTextFromSpeech);
}
@Override
public void onEvent(int eventType, Bundle params) {
Log.i(TAG, "onEvent:" + eventType);
}
});
Intent iSRIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
iSRIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
iSRIntent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, true);
iSRIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, getPackageName());
iSRIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, "en-US");
iSRIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE, "en-US");
sr.startListening(iSRIntent);
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
}