语音识别中的果冻豆哔声

Posted 2023-02-25

【中文标题】语音识别中的果冻豆哔声

【英文标题】：Jelly Bean Beep In Speech Recognition

【发布时间】：2013-05-04 03:43:48

【问题描述】：

我一直在寻找不同的线索，但没有找到任何对我遇到的问题有用的东西。我想摆脱语音识别开始时发出的“哔”声。我正在使用 Jelly Bean 4.2.2，所以我不确定早期版本是否存在同样的问题，如果是的话，我也想解决这个问题。另外，我想知道是否有人对如何响应某些语音识别结果有建议。请告诉我如何即兴编写我的代码以包含这些功能。

package com.example.speech;

import java.util.ArrayList;

import android.media.AudioManager;
import android.os.Build;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.app.Activity;
import android.content.Intent;
import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.view.Menu;
import android.view.View.OnClickListener;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.util.Log;

public class MainActivity extends Activity implements  OnClickListener 



ListView lv;
private SpeechRecognizer mSpeechRecognizer;
private Intent mSpeechRecognizerIntent; 
boolean reseter = false;
private AudioManager mAudioManager;
private volatile boolean mNoSpeechCountDownOn;


@Override
protected void onCreate(Bundle savedInstanceState) 


    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    boolean available = SpeechRecognizer.isRecognitionAvailable(this);
    Log.d("Speech", "available = " + available);
    mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
    mSpeechRecognizer.setRecognitionListener(new SpeechListener());
    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());
    mAudioManager = (AudioManager) getSystemService(this.AUDIO_SERVICE);
    commandA();





private CountDownTimer mNoSpeechCountDown = new CountDownTimer(5000, 5000)
   
    @Override
    public void onTick(long millisUntilFinished)
    

    

    @SuppressWarnings("synthetic-access")
    @Override
    public void onFinish()
    
        mNoSpeechCountDownOn = false;
        mSpeechRecognizer.cancel();
        mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
    
;

@Override
public boolean onCreateOptionsMenu(Menu menu) 
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;



private class SpeechListener implements RecognitionListener 


    @Override
    public void onBeginningOfSpeech() 
        if (mNoSpeechCountDownOn)
        
            mNoSpeechCountDownOn = false;
            mNoSpeechCountDown.cancel();
        
        Log.d("Speech", "onBeginningOfSpeech");

    

    @Override
    public void onBufferReceived(byte[] buffer) 
        Log.d("Speech", "onBufferReceived");
    

    @Override
    public void onEndOfSpeech() 
        Log.d("Speech", "onEndOfSpeech");


    

    @Override
    public void onError(int error) 
        if (mNoSpeechCountDownOn)
        
            mNoSpeechCountDownOn = false;
            mNoSpeechCountDown.cancel();
        
        Log.d("Speech", "onError");
    

    @Override
    public void onEvent(int eventType, Bundle params) 
        Log.d("Speech", "onEvent");
    

    @Override
    public void onPartialResults(Bundle partialResults) 
        Log.d("Speech", "onPartialResults");
    

    @Override
    public void onReadyForSpeech(Bundle params) 
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN)
        
            mNoSpeechCountDownOn = true;
            mNoSpeechCountDown.start();
            mAudioManager.setStreamMute(AudioManager.STREAM_SYSTEM, false);
        
        Log.d("Speech", "onReadyForSpeech");
        try 
            Thread.sleep(4900);

         catch (InterruptedException e) 
            mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
            mAudioManager.setStreamMute(AudioManager.STREAM_SYSTEM, true);
            Log.d("speech", "Mute on");

        

    


    @Override
    public void onResults(Bundle results) 
        Log.d("Speech", "results");


        ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);

        // Do whatever you want here
        try 
            Thread.sleep(1);

         catch (InterruptedException e) 
            mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
            mAudioManager.setStreamMute(AudioManager.STREAM_SYSTEM, true);
            Log.d("speech", "Mute on");

        
    

    @Override
    public void onRmsChanged(float rmsdB) 
        //Log.d("Speech", "onRmsChanged");
    




@Override
public void onClick(View v) 
    // TODO Auto-generated method stub


 

【问题讨论】：

嗨 Hoan，我用你给我的东西记录了这些结果（我已经更新了我的问题）我收到了多个错误，主要是在运行时。我不确定我是否必须声明一个布尔值。如果您不介意查看它，那就太好了！

几乎唯一的问题是您提供的代码中未定义 mNOSpeechCountDownOn 变量。你建议我把它定义为什么？

我仍然收到一个奇怪的错误 threadid=1: thread exiting with uncaught exception (group=0x41b07348)，这会导致致命异常：带有标签 AndroidRuntime 的 main。这可能是什么？解决方法是什么？

我删除了你所有的帖子你为什么要把它破解？

我没有更改代码中的任何内容，它与您的编辑相同。看一下代码，按下按钮的时候就报错了。

【参考方案1】：

public class MainActivity extends Activity implements OnClickListener 

ListView lv;
private SpeechRecognizer mSpeechRecognizer;
private Intent mSpeechRecognizerIntent; 
boolean reseter = false;
private AudioManager mAudioManager;

Override
protected void onCreate(Bundle savedInstanceState) 


super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv = (ListView)findViewById(R.id.lvVoiceReturn);
Button b= (Button)findViewById(R.id.bVoice);
b.setOnClickListener(this);
boolean available = SpeechRecognizer.isRecognitionAvailable(this);
Log.d("Speech", "available = " + available);
mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
mSpeechRecognizer.setRecognitionListener(new SpeechListener());
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());
mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);




private CountDownTimer mNoSpeechCountDown = new CountDownTimer(5000, 5000)
   
    @Override
    public void onTick(long millisUntilFinished)
    

    

    @SuppressWarnings("synthetic-access")
    @Override
    public void onFinish()
    
        mNoSpeechCountDownOn = false;
        mSpeechRecognizer.cancel();
        mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
    
;

@Override
public boolean onCreateOptionsMenu(Menu menu) 
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;



@Override
public void onClick(View v) 
 // TODO Auto-generated method stub`
Log.d("speech", "button active");
mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
mAudioManager.setStreamMute(AudioManager.STREAM_SYSTEM, true);


private class SpeechListener implements RecognitionListener 


@Override
public void onBeginningOfSpeech() 
    if (mNoSpeechCountDownOn)
    
                mNoSpeechCountDownOn = false;
                mNoSpeechCountDown.cancel();
    
    Log.d("Speech", "onBeginningOfSpeech");



@Override
public void onBufferReceived(byte[] buffer) 
    Log.d("Speech", "onBufferReceived");


@Override
public void onEndOfSpeech() 
    Log.d("Speech", "onEndOfSpeech");




@Override
public void onError(int error) 
    if (mNoSpeechCountDownOn)
    
                mNoSpeechCountDownOn = false;
                mNoSpeechCountDown.cancel();
    
    Log.d("Speech", "onError");


@Override
public void onEvent(int eventType, Bundle params) 
    Log.d("Speech", "onEvent");


@Override
public void onPartialResults(Bundle partialResults) 
    Log.d("Speech", "onPartialResults");


@Override
public void onReadyForSpeech(Bundle params) 
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN)
    
                mNoSpeechCountDownOn = true;
                mNoSpeechCountDown.start();
          mAudioManager.setStreamMute(AudioManager.STREAM_SYSTEM, false);
    
    Log.d("Speech", "onReadyForSpeech");




@Override
public void onResults(Bundle results) 
    Log.d("Speech", "results");
    ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);

  // Do whatever you want here



@Override
public void onRmsChanged(float rmsdB) 
    //Log.d("Speech", "onRmsChanged");

【参考方案2】：

@Hoan Nguyen：我发现在 SpeechRecognizer 开始收听时静音“哔”的唯一方法是使用以下方法：

mAudioManager.setStreamSolo(AudioManager.STREAM_VOICE_CALL, true);

这是一个讨厌的 hack，因为我只是想静音 SpeechRecognizer 播放的那种“系统声音”，但使用 mAudioManager.setStreamMute(AudioManager.STREAM_SYSTEM, true) 的另一种解决方案无效。

【参考方案3】：

尝试使用此代码：

mAudioManager.setStreamMute(AudioManager.VIBRATE_TYPE_NOTIFICATION, true);

【讨论】：

setStreamMute 需要一个流来静音...这不是您传递给该方法的内容...此外，您正在使系统音量流静音，因为 vibrate_type_notification 常量恰好与STREAM_SYSTEM 常量。

将常量更改为 AudioManager.STREAM_SYSTEM 可以解决问题，但 SO 成员拒绝了编辑答案的尝试（根据 SO 政策），而是强制将其作为评论发布。