Android tts
1.基本使用
1.1 初始化
使用默认的引擎
TextToSpeech(Context context, TextToSpeech.OnInitListener listener)
使用指定的引擎
TextToSpeech(Context context, TextToSpeech.OnInitListener listener, String engine)
查看默认的引擎
String defaultEngine = mTextToSpeech.getDefaultEngine();//讯飞语音引擎是com.iflytek.speechsuite
遍历所有的引擎
List<TextToSpeech.EngineInfo> engines = mTextToSpeech.getEngines();
for (int i = 0; i < engines.size(); i++) {
Log.e("tag", "talk: " + i + "\t" + engines.get(i).name + "\t" + engines.get(i).label);
}
结果
0 com.iflytek.speechsuite 讯飞语音引擎
1 com.android.tback 天坦语音
2 com.iflytek.vflynote 讯飞语记
天坦语音和讯飞语记都是讯飞的语音
初始化
mTextToSpeech = new TextToSpeech(this, new TextToSpeech.OnInitListener() {
@Override
public void onInit(int status) {
if (status == TextToSpeech.SUCCESS) {
//设置中文
int result = mTextToSpeech.setLanguage(Locale.CHINA);
if (result != TextToSpeech.LANG_COUNTRY_AVAILABLE
&& result != TextToSpeech.LANG_AVAILABLE) {
Toast.makeText(TtsActivity.this, "TTS暂时不支持这种语音的朗读!",
Toast.LENGTH_SHORT).show();
}
}
}
});
1.2 设置参数
设置语速
//设置速率,速率:默认是1.0f,可选0.5f~2.0f
//一般手机中默认的都是讯飞语音引擎,语速的范围是10~600,我们可以设置[0.5,6]
mTextToSpeech.setSpeechRate(1.0f);
查询引擎语速
try {
//讯飞语音引擎,语速的范围是10~600,我们可以设置[0.5,6]
Log.e("zxd", "updateRate: " + i + "\t" + Settings.Secure.getInt(mContext.getContentResolver(), TTS_DEFAULT_RATE));
} catch (Settings.SettingNotFoundException e) {
e.printStackTrace();
}
设置音调
//设置音调,默认是1.0。值越大声音越尖(女生),值越小则变成男声,1.0是常规
mTextToSpeech.setPitch(1.0f);
设置最大播报长度
mTextToSpeech.getMaxSpeechInputLength();//最大播报文本长度
设置播报状态回调
mTextToSpeech.setOnUtteranceProgressListener(new UtteranceProgressListener() {
@Override
public void onStart(String utteranceId) {
//播报开始
}
@Override
public void onDone(String utteranceId) {
//播报结束
}
@Override
public void onError(String utteranceId) {
//播报出错
}
});
1.3 播放与暂停
播放
/**
* text 需要转成语音的文字
* queueMode 队列方式:
* QUEUE_ADD:播放完之前的语音任务后才播报本次内容
* QUEUE_FLUSH:丢弃之前的播报任务,立即播报本次内容
* params 设置TTS参数,可以是null。
* KEY_PARAM_STREAM:音频通道,可以是:STREAM_MUSIC、STREAM_NOTIFICATION、STREAM_RING等
* KEY_PARAM_VOLUME:音量大小,0-1f
* utteranceId:当前朗读文本的id
*/
mTextToSpeech.speak(text, TextToSpeech.QUEUE_ADD, null, "test");
mTextToSpeech.speak(text, TextToSpeech.QUEUE_FLUSH, null, "test");
//也可以放很多参数,但实际上没有什么必要
long utteranceId = System.currentTimeMillis();
HashMap ttsOptions = new HashMap<String, String>();
ttsOptions.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID,
String.valueOf(utteranceId));//utterance,这个参数随便写,用于监听播报完成的回调中
ttsOptions.put(TextToSpeech.Engine.KEY_PARAM_VOLUME, String.valueOf(1));//音量
ttsOptions.put(TextToSpeech.Engine.KEY_PARAM_STREAM,
String.valueOf(AudioManager.STREAM_NOTIFICATION));//播放类型
int ret = mSpeech.speak(tts, TextToSpeech.QUEUE_FLUSH, ttsOptions);
if (ret == TextToSpeech.SUCCESS) {
//播报成功
}
暂停
//不管是否正在朗读TTS都被打断
textToSpeech.stop();//此时会触发UtteranceProgressListener的onDone回调。
关闭,销毁引擎
textToSpeech.shutdown();
1.4 保存语音文件并且播放
保存音频
//先判断目录文件是否存在,然后创建wav文件
File rootFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath()
+ "/Android/hecheng/");
if (!rootFile.exists()) {
rootFile.mkdir();
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
int ret = mTextToSpeech.synthesizeToFile("这是中文合成效果", null,
new File("/mnt/sdcard/" + new Date().toString().replace(" ", "_").trim() + ".wav"),
TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID);
if (ret == TextToSpeech.SUCCESS) {
//合成文件成功
ToastUtils.show(TtsActivity.this, "合成成功!");
}
}
解释
这个方法过时了
mTextToSpeech.synthesizeToFile(final String text, final HashMap<String, String> params,
final String filename)
HashMap<String, String> hashMap = new HashMap<>();
hashMap.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, "com.zxd.aa");
mTextToSpeech.synthesizeToFile("这是英文合成效果", hashMap, Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/hecheng/" + new Date().toString().replace(" ", "_").trim() + ".wav");
播放音频
private MediaPlayer player;
player = new MediaPlayer();
try {
player.reset();
player.setDataSource("/mnt/sdcard/" + "12321.wav");
player.prepare();
player.start();
} catch (IOException e) {
e.printStackTrace();
Log.e("zxd", "IOException:" + e.getMessage());
}
简单操作
//播放
player.start();
//暂停
player.pause();
//恢复
player.resume();其实就是start(),Calling {@link #start()} to resume playback for a paused MediaPlayer object, and the resumed playback
//重置
player.reset();
1.5 Android11适配
为兼容Android11系统手机,我们需要在应用程序AndroidManifest.xml文件中增加如下声明:
<queries>
<intent>
<action android:name="android.intent.action.TTS_SERVICE"/>
</intent>
</queries>
复制代码
3.5.x版本Gradle需要使用3.5.4以上版本才能识别queries属性。