Text To Speech即TTS技术

原生Android系统自带了一个Pico TTS引擎，但不支持中文;市面上离线的文字转语音,某讯,某度都是收费的,并且还设计到版权的问题, 实际上谷歌内置TextToSpeach类帮助开发者实现这一功能, 市场上的手机很多已经内置了文字转语音的引擎, 如果没有则安装一个apk即可,切换一下, 如下图所示: 

点击Google文字转语音引擎设置, 下载中文的安装包; 即可以在代码中进行语音播报, 

package hz.hzhztech.publiclibrary.utils; import android.content.Context; import android.os.Build; import android.speech.tts.TextToSpeech; import android.speech.tts.UtteranceProgressListener; import android.support.annotation.RequiresApi; import com.blankj.utilcode.util.ToastUtils; import java.util.Locale; import hz.hzhztech.publiclibrary.application.App; public class TtsManager { private TtsManager() { } private static class SingletonHoler { public static final TtsManager INSTANCE = new TtsManager(); } public static TtsManager getInstance() { return SingletonHoler.INSTANCE; } private TextToSpeech mSpeech; private boolean mIsInited; // private UtteranceProgressListener mSpeedListener; public void init() { destory(); mSpeech = new TextToSpeech(App.getInstance(), new TextToSpeech.OnInitListener() { @Override public void onInit(int status) { if (status == TextToSpeech.SUCCESS) { int result = mSpeech.setLanguage(Locale.CHINESE); // mSpeech.setPitch(1.0f); // 设置音调 // mSpeech.setSpeechRate(1.5f); // 设置语速 if (result == TextToSpeech.LANG_MISSING_DATA || result == TextToSpeech.LANG_NOT_SUPPORTED) { //语音合成初始化失败,不支持语种 mIsInited = false; ToastUtils.showLong("语音不可用,请确认是否安装语音引擎"); } else { mIsInited = true; } // mSpeech.setOnUtteranceProgressListener(new UtteranceProgressListener() { // @Override // public void onStart(String utteranceId) { // //======语音合成 Start // if (mSpeedListener != null) // mSpeedListener.onStart(utteranceId); // } // // @Override // public void onDone(String utteranceId) { // //======语音合成 Done // if (mSpeedListener != null) // mSpeedListener.onDone(utteranceId); // } // // @Override // public void onError(String utteranceId) { // //======语音合成 Error // if (mSpeedListener != null) // mSpeedListener.onError(utteranceId); // } // }); } } }); } // public void setSpeechListener(UtteranceProgressListener listener) { // this.mSpeedListener = listener; // } public boolean speakText(String text) { if (!mIsInited) { //语音合成失败，未初始化成功 init(); return false; } if (mSpeech != null) { int result = 0; if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) { result = mSpeech.speak(text, TextToSpeech.QUEUE_FLUSH, null, ""); } return result == TextToSpeech.SUCCESS; } return false; } public void stop() { if (mSpeech != null && mSpeech.isSpeaking()) { mSpeech.stop(); } } public boolean isSpeaking() { if (mSpeech == null) return false; return mSpeech.isSpeaking(); } public void destory() { if (mSpeech != null) { mSpeech.stop(); mSpeech.shutdown(); } } }