安卓 - TTS 没有声音输出

Question

安卓 - TTS 没有声音输出

4

我正在为安卓手机实现一个TTS应用程序。以下是我已经编写的代码:

import android.app.Activity;
import android.content.Intent;
import android.view.View.OnClickListener;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import java.util.Locale;

public class AlarmActivity extends Activity implements OnClickListener, TextToSpeech.OnInitListener {

    private TextToSpeech mTts;
    private static final String TAG = "TextToSpeechDemo";
    private static final int MY_DATA_CHECK_CODE = 1234;
    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.alarm);

        Button btnAdd = (Button) findViewById(R.id.btnAdd);
        btnAdd.setOnClickListener(this);
        btnAdd.setEnabled(false);

        TextView txt = (TextView) findViewById(R.id.txt);
        txt.setText("OnCreate");

        // Fire off an intent to check if a TTS engine is installed
        Intent checkIntent = new Intent();
        checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
        startActivityForResult(checkIntent, MY_DATA_CHECK_CODE);
    }
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data)
    {
        TextView txt = (TextView) findViewById(R.id.txt);
        if (requestCode == MY_DATA_CHECK_CODE)
        {
            if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS)
            {
                // success, create the TTS instance
                txt.setText("Done result");
                mTts = new TextToSpeech(this, this);
                mTts.setLanguage(Locale.US);
                Button btnAdd = (Button) findViewById(R.id.btnAdd);
                btnAdd.setEnabled(true);

            }
            else
            {
                txt.setText("Missing");
                // missing data, install it
                Intent installIntent = new Intent();
                installIntent.setAction(
                        TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
                startActivity(installIntent);
            }
        }
    }

    @Override
    public void onDestroy()
    {
        // Don't forget to shutdown!
        if (mTts != null)
        {
            mTts.stop();
            mTts.shutdown();
        }
        super.onDestroy();
    }

    @Override
    public void onClick(View v) {

        TextView txt = (TextView) findViewById(R.id.txt);
                txt.setText("Click");

        String myText1 = "Did you sleep well?";
        String myText2 = "I hope so, because it's time to wake up.";
        mTts.speak(myText1, TextToSpeech.QUEUE_FLUSH, null);
        mTts.speak(myText2, TextToSpeech.QUEUE_ADD, null);
    }
    @Override
    public void onInit(int status) {
        TextView txt = (TextView) findViewById(R.id.txt);
        txt.setText("status 0");
        if (status == TextToSpeech.SUCCESS) {
                txt.setText("status 1");
            int result = mTts.setLanguage(Locale.US);
            if (result == TextToSpeech.LANG_MISSING_DATA ||
                result == TextToSpeech.LANG_NOT_SUPPORTED) {
                txt.setText("status 2");
            } else {
                Button btnAdd = (Button) findViewById(R.id.btnAdd);
                btnAdd.setEnabled(true);
                txt.setText("status 3");
            }
            } else {
            txt.setText("status 4");
            Log.e(TAG, "Could not initialize TextToSpeech.");
        }
    }
}

我的布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="5dp">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Alarms"
        android:id="@+id/txt" />
    <Button android:id="@+id/btnAdd"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="Say" />
</LinearLayout>

在NetBeans的ADB日志中，我可以看到以下内容：

13:08:41.314    163 INFO    ActivityManager Starting activity: Intent { act=android.speech.tts.engine.CHECK_TTS_DATA cmp=com.svox.pico/.CheckVoiceData }
13:08:41.504    163 INFO    ActivityManager Displayed activity org.me.talkingdroid/.MainActivity: 2790 ms (total 2790 ms)
13:08:41.544    163 WARN    ActivityManager Binding with unknown activity: android.os.BinderProxy@46d91ac8
13:08:41.634    264 DEBUG   [ScrollKPI] drawScreenCache takes 222ms, drawThumbnailCache takes 106ms
13:08:43.214    163 VERBOSE KeyInputQueue   Enqueueing:  MotionEvent{470684e0 action=0 x=310.26947 y=438.86896 pressure=0.15294118 size=0.13333334}
13:08:43.214    163 INFO    WindowManager   dispatchPointer MotionEvent{470684e0 action=0 x=310.26947 y=438.86896 pressure=0.15294118 size=0.13333334}
13:08:43.214    163 INFO    WindowManager   Delivering pointer QueuedEvent{470bdcb8 MotionEvent{470684e0 action=0 x=310.26947 y=438.86896 pressure=0.15294118 size=0.13333334}} to Window{46e0c640 org.me.talkingdroid/org.me.talkingdroid.MainActivity paused=false}
13:08:43.264    163 VERBOSE KeyInputQueue   Enqueueing:  MotionEvent{470684e0 action=1 x=310.26947 y=438.86896 pressure=0.15294118 size=0.13333334}
13:08:43.264    163 INFO    WindowManager   dispatchPointer MotionEvent{470684e0 action=1 x=310.26947 y=438.86896 pressure=0.15294118 size=0.13333334}
13:08:43.264    163 INFO    WindowManager   Delivering pointer QueuedEvent{46f34300 MotionEvent{470684e0 action=1 x=310.26947 y=438.86896 pressure=0.15294118 size=0.13333334}} to Window{46e0c640 org.me.talkingdroid/org.me.talkingdroid.MainActivity paused=false}
13:08:43.284    10637   INFO    TTS received:   Did you sleep well?
13:08:43.284    10637   INFO    TTS received:   I hope so, because it's time to wake up.
13:08:46.714    10038   DEBUG   dalvikvm    GC_EXPLICIT freed 417 objects / 26192 bytes in 82ms
13:08:47.994    10637   DEBUG   dalvikvm    Debugger has detached; object registry had 398 entries

很明显，我尝试输出的文本是从日志中发送的，但是我听不到任何声音从我的手机传出。可能出了什么问题？

- Maverick

刚刚发现SpeechSynthesis数据安装程序无法正确安装。有什么原因吗？ - Maverick

5个回答

1

你的代码更像是安卓文档。我只是写了这个演示代码。我相信如果你在下面这行代码中将requestCode替换为resultCode，它就能正常工作了。 if (requestCode == MY_DATA_CHECK_CODE) 这是我的代码：

public class TTS_demoActivity extends Activity implements OnClickListener,OnInitListener {
private EditText mContent;
private Button mSpeak;
private String mTemp;
private static final int REQ_TTS_STATUS_CHECK = 1;  
private static final String TAG = "TTS Demo";
private TextToSpeech mTts;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    mContent = (EditText) findViewById(R.id.etcontent);
    mSpeak = (Button) findViewById(R.id.btnspeak);
    mSpeak.setOnClickListener(this);
    init();
}
/*
 * 初始化方法检测TTS所需要的数据是否存在
 */
private void init() {
    Intent mCheckIntent=new Intent();
    mCheckIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
    startActivityForResult(mCheckIntent, REQ_TTS_STATUS_CHECK);

}
/*
 * 对检测结果进行分类处理
 */

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if(requestCode==REQ_TTS_STATUS_CHECK)
    {
        switch (resultCode) {
        case TextToSpeech.Engine.CHECK_VOICE_DATA_PASS:
            mTts = new TextToSpeech(this, this);
            Log.v(TAG, "tts engine is instance");
            break;
        case TextToSpeech.Engine.CHECK_VOICE_DATA_BAD_DATA:
            //文件已经损坏
        case TextToSpeech.Engine.CHECK_VOICE_DATA_MISSING_VOLUME:
            //缺少发音文件
        case TextToSpeech.Engine.CHECK_VOICE_DATA_MISSING_DATA: 
            //数据文件丢失

            //从新更新TTS数据文件
            Intent mUpdateData=new Intent();
            mUpdateData.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
            startActivity(mUpdateData);

            break;

        case TextToSpeech.Engine.CHECK_VOICE_DATA_FAIL:
            //检测失败应该重新检测
            Log.v(TAG, "TTS engine checked fail");
            break;
        default:
             Log.v(TAG, "Got a failure. TTS apparently not available");  
            break;
        }

    }   

}

@Override
public void onInit(int status) {
    if(status==TextToSpeech.SUCCESS){
        int result=mTts.setLanguage(Locale.US);
        if(result==TextToSpeech.LANG_NOT_SUPPORTED||result==TextToSpeech.LANG_MISSING_DATA)
        {
            Log.v(TAG, "language is not available");

        }else{
            mTts.speak("start complete", TextToSpeech.QUEUE_ADD, null);
            mSpeak.setEnabled(true);
        }

    }

}

@Override
public void onClick(View arg0) {
    mTemp= mContent.getText().toString();
    if(mTemp!=""||mTemp.trim()!=""){
    mTts.speak(mTemp, TextToSpeech.QUEUE_ADD,null);
    }
}

@Override
protected void onDestroy() {
    super.onDestroy();
    if(mTts!=null){
        mTts.shutdown();
    }
}

@Override
protected void onStop() {
    super.onStop();
    if(mTts!=null){
        mTts.stop();
    }
}
@Override
public void onBackPressed() {
    super.onBackPressed();
    this.finish();
}
}

- YangLi

1

这个帖子提到了SpeechSynthesis数据安装程序的问题。我的问题也是TTS程序（类似于所示）没有声音，否则执行正确。在我的情况下，这是因为SpeechSynthesis数据未安装在我的平板电脑上。

安装后，在我的平板电脑上，我的程序甚至在调试模式和连接电缆的情况下都能正常工作。

对于像我一样不熟悉TTS的人，我在下面列出了我在Android 4.0.4上安装语音合成数据所做的操作。它们在其他版本上可能不同，但应该类似。

开始“设置”- 选择：'设置>语言和输入>文本转语音输出' 然后在'首选引擎'下，选择'Google文本转语音引擎'并单击该选项右侧的'设置'符号。这显示了三个选项：首先选择(1)'语言'，然后选择(2)'Google TTS的设置'，并勾选'自动更新语音'和'仅使用Wi-Fi'，最后选择(3)'安装语音数据'; （必须启用Wi-Fi下载数据）

感谢stackoverflow，感谢提问者的问题和回答，我成功解决了我的问题，问题并不在代码上，而是在我的平板电脑的TTS配置上。我也学到了，并不总是代码的问题。

- Anthony

1

我在运行Android Things的Raspberry Pi 3上遇到了类似的问题，TTS只能通过USB端口播放，直到我在我的TextToSpeech对象上运行TextToSpeech.setAudioAttributes(AudioAttributes)并使用标志AudioAttributes.FLAG_AUDIVILITY_ENFORCED，如下面的代码所示：

public class CustomTTS extends TextToSpeech {

    private static final String UTTERANCE_ID =
            "com.example.androidthings.bluetooth.audio.UTTERANCE_ID";

    public CustomTTS(Context context, TextToSpeech.OnInitListener listener){
        super(context, listener);
        setOnUtteranceProgressListener(new MyProgListener());
        try {
            AudioAttributes.Builder audioAttributes = new AudioAttributes.Builder().
                    setUsage(AudioAttributes.USAGE_VOICE_COMMUNICATION_SIGNALLING).
                    setContentType(AudioAttributes.CONTENT_TYPE_SPEECH).
                    setFlags(AudioAttributes.FLAG_AUDIBILITY_ENFORCED);
            setAudioAttributes(audioAttributes.build());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

- mikeLundquist

0

我不得不将默认语言更改为一种在手机上支持文本转语音的语言才能使其正常工作：

设置->语言和输入法->语言。

支持的语言：英语（英国）和英语（美国）。不支持的语言：英语（爱尔兰）。

- Eoghan Hynes

网页内容由stack overflow 提供, 点击上面的

可以查看英文原文，
原文链接

- Maverick · Accepted Answer

看起来这是因为手机连接到电脑时处于USB调试模式。一旦禁用，TTS就可以完美地工作了！