Question

如何在Android中读取数据，即将简单文本字符串转换为语音（语音）？

是否有API我可以做这样的事情：

TextToVoice speaker = new TextToVoice();
speaker.Speak("Hello World");

Answer 1

使用TTS比您预期的要复杂一点，但是编写一个能够为您提供所需API的包装器很容易。

为了让它正常运行，你必须克服许多问题。

他们是：

始终设置UtteranceId（否则 OnUtteranceCompleted将不会叫）
设置OnUtteranceCompleted 听众（仅在演讲结束后系统已正确初始化）


public class TextSpeakerDemo implements OnInitListener
 {
    private TextToSpeech tts;
    private Activity activity;

    private static HashMap DUMMY_PARAMS = new HashMap();
    static 
    {
        DUMMY_PARAMS.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, "theUtId");
    }
    private ReentrantLock waitForInitLock = new ReentrantLock();

    public TextSpeakerDemo(Activity parentActivity)
    {
        activity = parentActivity;
        tts = new TextToSpeech(activity, this);       
        //don't do speak until initing
        waitForInitLock.lock();
    }

    public void onInit(int version)
    {        //unlock it so that speech will happen
        waitForInitLock.unlock();
    }  

    public void say(WhatToSay say)
    {
        say(say.toString());
    }

    public void say(String say)
    {
        tts.speak(say, TextToSpeech.QUEUE_FLUSH, null);
    }

    public void say(String say, OnUtteranceCompletedListener whenTextDone)
    {
        if (waitForInitLock.isLocked())
        {
            try
            {
                waitForInitLock.tryLock(180, TimeUnit.SECONDS);
            }
            catch (InterruptedException e)
            {
                Log.e("speaker", "interruped");
            }
            //unlock it here so that it is never locked again
            waitForInitLock.unlock();
        }

        int result = tts.setOnUtteranceCompletedListener(whenTextDone);
        if (result == TextToSpeech.ERROR)
        {
            Log.e("speaker", "failed to add utterance listener");
        }
        //note: here pass in the dummy params so onUtteranceCompleted gets called
        tts.speak(say, TextToSpeech.QUEUE_FLUSH, DUMMY_PARAMS);
    }

    /**
     * make sure to call this at the end
     */
    public void done()
    {
        tts.shutdown();
    }
}

Answer 2

Here you go。 A tutorial on using the library最大的缺点是它需要一张SD卡来存储声音。

Answer 3

可以在“Pro Android 2 book”中找到tts使用的一个很好的工作示例。看看第15章的源代码。

Answer 4

有第三方文字转语音引擎。有传言说Donut包含一个文本到语音引擎，暗示它将在未来的Android版本中提供。不过，除此之外，Android中还没有内置任何文本转语音功能。

Answer 5

甜甜圈有这个：请参阅android.speech.tts包。

Android演讲 - 如何在Android中阅读文字？

5 个答案: