Android SpeechRecognizer 网络错误

Question

我正在尝试在 Android 4.4 中创建连续语音识别，简单地在 TextView 中显示口语，就像命令一样。我遵循了多个教程，例如 https://github.com/fcrisciani/android-speech-recognition/blob/master/VoiceRecognition/src/com/speech/fcrisciani/voicerecognition/ContinuousDictationFragment.java , 或 Is there a way to use the SpeechRecognizer API directly for speech input?并实现了以下版本:

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.graphics.PorterDuff;
import android.os.Bundle;
import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.view.KeyEvent;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;

public class VoiceReadActivity extends Activity {
    private ImageButton                 mButtonSpeech;
    private TextView                    mTextView;

    private SpeechRecognizer            mSpeechRecognizer = null;

    private SpeechRecognizer getSpeechRecognizer() {
        if (mSpeechRecognizer == null) {
            mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
            mSpeechRecognizer.setRecognitionListener(new RecognitionListener() {
                @Override
                public void onReadyForSpeech(Bundle params) {
                    mButtonSpeech.getBackground().setColorFilter( 0xFFFF0000, PorterDuff.Mode.MULTIPLY );
                }

                @Override
                public void onBeginningOfSpeech() {
                    mTextView.append( "BEGINNING TO HEAR..." );

                    mButtonSpeech.getBackground().setColorFilter( 0xFFFFFFFF, PorterDuff.Mode.MULTIPLY );
                }

                @Override
                public void onBufferReceived(byte[] buffer) {}

                @Override
                public void onEndOfSpeech() {
                    mTextView.append( "STOP HEARING..." );

                    mButtonSpeech.getBackground().setColorFilter( 0xFF00FFFF, PorterDuff.Mode.DST );
                }

                @Override
                public void onError(int error) {
                    String message;
                    boolean restart = true;
                    switch (error)
                    {
                        case SpeechRecognizer.ERROR_AUDIO:
                            message = "Audio recording error";
                            break;
                        case SpeechRecognizer.ERROR_CLIENT:
                            message = "Client side error";
                            restart = false;
                            break;
                        case SpeechRecognizer.ERROR_INSUFFICIENT_PERMISSIONS:
                            message = "Insufficient permissions";
                            restart = false;
                            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 = "Not recognised";
                            break;
                    }
                    mTextView.append("onError code:" + error + " message: " + mes    sage);

                    if (restart) {
                        getSpeechRecognizer().cancel();
                        startVoiceRead();
                    }
                }

                @Override
                public void onEvent(int eventType, Bundle params) {}

                @Override
                public void onPartialResults(Bundle partialResults) {}

                @Override
                public void onResults(Bundle results) {
                    ArrayList<String> text = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
                    mTextView.append(text.get(0));
                    mTextView.append( ". " );

                    startVoiceRead();
                }

                @Override
                public void onRmsChanged(float rmsdB) {}
            });
        }       
        return mSpeechRecognizer;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mButtonSpeech           = (ImageButton)findViewById(R.id.button_speech);
        mTextView               = (TextView)findViewById(R.id.text_slave);

        mButtonSpeech.setOnClickListener( new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (mSpeechRecognizer == null) {
                    startVoiceRead();
                } else {
                    stopVoiceRead();
                }
            }
        });
    }

    public void startVoiceRead() {
        Intent speechIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
        speechIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
        getSpeechRecognizer().startListening(speechIntent);

        mButtonSpeech.getBackground().setColorFilter( 0xFFFFFF00, PorterDuff.Mode.MULTIPLY );
    }

    public void stopVoiceRead() {
        if (mSpeechRecognizer != null) {
            mSpeechRecognizer.destroy();
            mSpeechRecognizer = null;
        }       

        mButtonSpeech.getBackground().setColorFilter( 0xFFFFFFFF, PorterDuff.Mode.DST);
    }
}

我已经在我的 Android Manifest 中添加了权限:

<uses-permission android:name="android.permission.RECORD_AUDIO"/>
<uses-permission android:name="android.permission.INTERNET"/>

问题是，像 onBeginningOfSpeech() 这样的 RecognitionListener 函数平均每三次被随机调用，我想激活它会引发按钮按下。此外，如果 RecognitionListener 已激活，我没有收到任何结果，但收到错误代码 2:网络错误。即使我按照教程进行操作，我也无法发现差异，导致我的代码直到现在才起作用。按下按钮时，我的 LogCat 输出会抛出以下错误:

07-04 10:20:22.714: E/DatabaseUtils(869): Writing exception to parcel
07-04 10:20:22.714: E/DatabaseUtils(869): java.lang.SecurityException: Permission Denial: get/set setting for user asks to run as user -2 but is calling from user 0; this requires android.permission.INTERACT_ACROSS_USERS_FULL
07-04 10:20:22.714: E/DatabaseUtils(869):   at com.android.server.am.ActivityManagerService.handleIncomingUser(ActivityManagerService.java:14614)
07-04 10:20:22.714: E/DatabaseUtils(869):   at android.app.ActivityManager.handleIncomingUser(ActivityManager.java:2258)
07-04 10:20:22.714: E/DatabaseUtils(869):   at com.android.providers.settings.SettingsProvider.call(SettingsProvider.java:663)
07-04 10:20:22.714: E/DatabaseUtils(869):   at android.content.ContentProvider$Transport.call(ContentProvider.java:325)
07-04 10:20:22.714: E/DatabaseUtils(869):   at android.content.ContentProviderNative.onTransact(ContentProviderNative.java:275)
07-04 10:20:22.714: E/DatabaseUtils(869):   at android.os.Binder.execTransact(Binder.java:404)
07-04 10:20:22.714: E/DatabaseUtils(869):   at dalvik.system.NativeStart.run(Native Method)
07-04 10:20:22.714: W/ActivityManager(869): Permission Denial: get/set setting for user asks to run as user -2 but is calling from user 0; this requires android.permission.INTERACT_ACROSS_USERS_FULL
07-04 10:20:22.734: E/VoiceEngineWrapper(16366): getInstance() : get existed VoiceEngine
07-04 10:20:22.734: E/VSG(16366): VSG: speechEndpointTimeout = 1500
07-04 10:20:22.734: E/VSG(16366): VSG: DEFAULT_ENDPOINT_MEDIUM is 1750
07-04 10:20:22.734: E/VSG(16366): VSG: Not using dynamic HANGOVER ... speechEndpointTimeout is 1500
07-04 10:20:22.734: E/VSG(16366): VSG: SHORT = 400
07-04 10:20:22.734: E/VSG(16366): VSG: MEDIUM = 750
07-04 10:20:22.734: E/VSG(16366): VSG: MEDIUM_LONG = 1250
07-04 10:20:22.734: E/VSG(16366): VSG: LONG = 1750
07-04 10:20:22.734: E/VSG(16366): VSG: LONG_LONG = 2250

但即使我添加

<uses-permission android:name="android.permission.INTERACT_ACROSS_USERS_FULL"/>

上述问题仍在继续。

感谢您花时间提供帮助。这是我至今无法克服的障碍。

Answer 1

根据 Use of SpeechRecognizer produces ERROR_NETWORK (Value 2) ，错误是由三星的语音API(由Vlingo提供支持)引起的。将手机设置中的语音 API 更改为标准 Google API 解决了问题。