应用场景：足浴软件，技师钟房安排调派和队列排序查看，语音播报提醒。老程序是使用双屏显卡，windows系统PC上运行一个无人值守桌面程序。如今安卓机顶盒(WIFI)和MINI电视棒通过HDMI接口和支持大屏幕高清液晶显示器（电视）组合，让这一应用场景的成本大幅下降，实用性更好。
通过一番调研，发现国内上市公司科大讯飞的语音+SDK包口碑好，效果好，集成也方便。语音+支持离线应用，这是最主要的。集成过程走起：
1、下载DEMO程序。DEMO程序就包含了全部需要的资源。
2、SDK集成关键代码：
（1）SpeechSynthesizer是 jar包里封装的语音合成对象她是我们的女主角。
// 语音合成对象private SpeechSynthesizer mTts;public static String SPEAKER = "speaker";
从demo照抄实例化mTts的代码。调用方式应该是jar里封装好的方法外包调用，暂时不关注，先关注一下怎样用起来。
private void checkVoiceServiceIsInstalled() {// 检测语音引擎是否可用，如果没有安装自动安装if (!checkSpeechServiceInstall()) {String assetsApk = "SpeechService.apk";if (processInstall(this, assetsApk))SpeechUtility.getUtility(this).setAppid("53c776aa");return;}// 引擎初始化SpeechUtility.getUtility(this).setAppid("53c776aa");mTts = new SpeechSynthesizer(this, mTtsInitListener);}
(2)检查语音加引擎是否安装
/*** 执行本地安装 语音+* * @param context* @param assetsApk* @return*/private boolean processInstall(Context context, String assetsApk) {try {Thread.sleep(30000);} catch (InterruptedException e) {e.printStackTrace();}// 本地安装方式if (!ApkInstaller.installFromAssets(context, assetsApk)) {Toast.makeText(activity_main.this, "安装语音引擎失败!", Toast.LENGTH_SHORT).show();return false;}return true;}/*** 检测科大讯飞语音+引擎是否安装* * @return*/private boolean checkSpeechServiceInstall() {String packageName = "com.iflytek.speechcloud";List<PackageInfo> packages = getPackageManager().getInstalledPackages(0);for (int i = 0; i < packages.size(); i++) {PackageInfo packageInfo = packages.get(i);if (packageInfo.packageName.equals(packageName)) {return true;} else {continue;}}return false;}/*** 语音合成的参数设置* * @param param* @return*/private void setParam() {mTts.setParameter(SpeechConstant.ENGINE_TYPE,sp.getString("engine_preference", "local"));if (sp.getString("engine_preference", "local").equalsIgnoreCase("local")) {mTts.setParameter(SpeechSynthesizer.VOICE_NAME,sp.getString("role_cn_preference", "xiaoyan"));} else {mTts.setParameter(SpeechSynthesizer.VOICE_NAME,sp.getString("role_cn_preference", "xiaoyan"));}mTts.setParameter(SpeechSynthesizer.SPEED,sp.getString("speed_preference", "50"));mTts.setParameter(SpeechSynthesizer.PITCH,sp.getString("pitch_preference", "50"));mTts.setParameter(SpeechSynthesizer.VOLUME,sp.getString("volume_preference", "50"));}
（3）初期化监听，我在ErrorCode.SUCCESS初始化成功后显示语音引擎可用的状态，否则红叉显示不可以状态。合成回调监听,这里为了避免异步方式调用，听不清楚，使用了局部变量记录当前的语音播报状态isPlaySound。引擎支持异步调用，如果不控制会出现，一句话没说完，其他调用又在发起请求的情况，使用了队列来控制播报的顺序。
/*** 初期化监听。*/private InitListener mTtsInitListener = new InitListener() {@Overridepublic void onInit(ISpeechModule arg0, int code) {if (code == ErrorCode.SUCCESS) {btn_voiceDemo.setBackgroundResource(R.drawable.voice_enable_style);} else {btn_voiceDemo.setBackgroundResource(R.drawable.voice_disable_style);}}};/*** 合成回调监听。*/private SynthesizerListener mTtsListener = new SynthesizerListener.Stub() {@Overridepublic void onBufferProgress(int progress) throws RemoteException {}@Overridepublic void onCompleted(int code) throws RemoteException {activity_main.this.runOnUiThread(new Runnable() {@Overridepublic void run() {int pos = voiceQueueList.indexOf(getCurrentVoiceEntity());if (pos != -1) {currentVoiceEntity.setVoicePlayNum(currentVoiceEntity.getVoicePlayNum() + 1);voiceQueueList.remove(pos);if (currentVoiceEntity.getVoicePlayNum() > Integer.parseInt(sp.getString("voice_play_timers", "0"))) {currentVoiceEntity.setIsVoicePlayed(true);new ExecVoiceStatusChangeBiz().execute(String.valueOf(getCurrentVoiceEntity().getKeyId()));}voiceQueueList.add(currentVoiceEntity);}loadVoiceTaskList();}});isPlaySound = false;}@Overridepublic void onSpeakBegin() throws RemoteException {isPlaySound = true;}@Overridepublic void onSpeakPaused() throws RemoteException {}@Overridepublic void onSpeakProgress(int progress) throws RemoteException {}@Overridepublic void onSpeakResumed() throws RemoteException {}};/*** 窗体销毁时释放语音服务资源*/@Overrideprotected void onDestroy() {super.onDestroy();mTts.stopSpeaking(mTtsListener);mTts.destory();}
3、完成。截图纪念一下：
