Text-to-speech 入门与进阶学习笔记(android)

1,入门:让TEXT朗读起来

//1,先写一个用来检查tts是否安装的方法 private final static int CHECK_CODE = 1;
public void checkTts(){
Intent checkIntent = new Intent();         checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
startActivityForResult(checkIntent, CHECK_CODE);               }
//创建一个TTS
private TextToSpeech mTts;
//这个自己先去了解下onActivityResult是怎么回事,这里不作详解
@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub         super.onActivityResult(requestCode, resultCode, data);
if(requestCode == CHECK_CODE){
if(resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS){
//成功创建一个TTS
mTts = new TextToSpeech(this, this);
}else{
//否则安装一个
Intent installIntent = new Intent();                 installIntent.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);                 startActivity
(installIntent);             }         }     }
//2,让TTS朗读起来
//onCreate方法中
//检查TTS是否正常 checkTts();
//创建用组件 private speakValue = (EditText)
findViewById(R.id.speakValue);
private speakButton = (Button)
findViewById(R.id.sayHello);
speakButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String text = speakValue.getText().toString();
Log.d("result","text-->" +text);                 sayTts(text);             }         });
//TTs朗读用 private void sayTts(String text){
//最简单的例子 mTts.speak(text, TextToSpeech.QUEUE_FLUSH, null);
}
//补充,使用TTS朗读,一定要实现OnInitListener　接口
//TTs对象创建后初始化
@Overridepublic void onInit(int status) {
if(status == TextToSpeech.SUCCESS){
//设置语言区域 int result = mTts.setLanguage(Locale.US);
//如果是不支持语言
if(result == TextToSpeech.LANG_MISSING_DATA || result == TextToSpeech.LANG_NOT_SUPPORTED){
Log.e("error","不支持");             }         }     }

2,进阶使用:改变我们朗读播放的类型,回调函数的使用与自定义文字发音

1,更改播放的流类型(暂且这样说,希望,有人解释一下)

//更改播放使用的流类型
//在sayTts作以下修改
//TTs朗读用 private void sayTts(String text) { HashMap<String, String> myAlarm = new HashMap();
//把播放类型,通过闹钟流实现 myHashAlarm.put(TextToSpeech.Engine.KEY_PARAM_STREAM, String.valueOf(AudioManager.STREAM_ALARM));
//你播放的tts在音频播放的闹钟类型流中 mTts.speak(text, TextToSpeech.QUEUE_FLUSH, myAlarm);
//英语原文是这样,我了解的就是以上我注释的内容
//我感觉不是很了解,希望有人帮帮
//On Android, each audio stream that is played is associated with one
//stream type, as defined in android.media.AudioManager. For a talking
//alarm clock, we would like our text to be played on the
//AudioManager.STREAM_ALARM stream type so that it respects the alarm
//settings the user has chosen on the device.
}

2,回调函数的使用

//在sayTts()中实现..
//需要实现OnUtteranceCompletedListener这个接口
//TTs朗读用
private Toast toast; prvate Context context = getApplicationContext();
private void sayTts(String text) { HashMap<String, String> myAlarm = new HashMap();   mTts.setOnUtteranceCompletedListener(this);
myAlarm.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, "me too");
toast = Toast.makeText(context, "me too", Toast.LENGTH_LONG);
//最简单的例子 mTts.speak(text, TextToSpeech.QUEUE_FLUSH, myAlarm); }
//回调函数 @Overridepublic void onUtteranceCompleted(String utteranceId) { speakPlayBack(utteranceId); }
private void speakPlayBack(String str) { Log.d("result","playBack-->" + str); toast.show(); }

3,录制TTS朗读保存到SD卡中

//把TTS朗读结果保存
private void sayTofile(String text) {
HashMap<String, String> ttsRender = new HashMap<String, String>();
String destFileName = "/sdcard/tts/"+text+".wav"; ttsRender.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, text); mTts.synthesizeToFile(text, ttsRender, destFileName);
}
//在

4,自定义Text发音

//自定义文字播放
private void sayTrue(String text) {
String destFileName = "/sdcard/tts/"+text+".wav"; mTts.addSpeech(text, destFileName);
mTts.speak(text, TextToSpeech.QUEUE_FLUSH, null); }
//在onclick方法中运行 sayTrue();

5,销毁

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