语音识别，语义理解一站式解决（android平台&olamisdk）
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用olami sdk语音识别语义理解做在线听书
olamisdk实现了把录音或者文字转化为用户可以理解的json字符串，本文使用olami sdk做了一个在线听书的demo，用的是喜马拉雅的在线听书sdk.基于eclipse开发环境，libs目录下jar和so文件如下：
olami-android-sdk.jar//olami sdk的jar
afinal_0.5.1_bin.jar
litepal.jar
gson-2.2.4.jar
okhttp-2.4.0.jar
okhttp-urlconnection-2.2.0.jar
okio-1.4.0.jar
opensdk.jar //上面这几个都是喜马拉雅需要的jar
libspeex.so //olami sdk需要用到speex压缩功能
libxmediaplayer.so //喜马拉雅so
libxmediaplayer_x.so//喜马拉雅so
概述：
VoiceSdkService中定义了OlamiVoiceRecognizer语音识别引擎，通过点击MusicActivity的开始button启动录音，录音结果在VoiceSdkService中的onResult()回调中拿到识别的Json字符串，在processServiceMessage()函数中处理后找到要听书的名称，然后进入BookUtil进行搜索，搜索到结果后通知VoiceSdkService进行播放，并通知MusicActivity更新播放进度等信息。
1.AndroidManifest.xml配置
package="com.olami.musicdemo" android:versionCode="1" android:versionName="1.0" > android:minSdkVersion="8" android:targetSdkVersion="21" /> android:name="com.olami.musicdemo.OlamiApplication" android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > android:name="app_key" android:value="b617866c20482d133d5de66fceb37da3"/> android:name="pack_id" android:value="com.app.test.android" /> android:name=".MusicActivity" android:label="@string/app_name" > android:name=".VoiceSdkService" android:exported="true" > android:name= "com.ximalaya.ting.android.opensdk.player.service.XmPlayerService" /> layout_musicview.xml TextView有两个，tv_name显示听书的名称, tv_totoal_time显示听书的总时间。 xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@android:color/transparent"> android:text="name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="5dp" android:layout_centerHorizontal="true" android:id="@+id/tv_name"/> android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@+id/tv_name" android:layout_marginTop="10dp" android:layout_marginLeft="20dp" android:layout_marginRight="20dp" android:id="@+id/progressbar_music"/> android:text="total_time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/progressbar_music" android:layout_marginTop="10dp" android:layout_centerHorizontal="true" android:id="@+id/tv_total_time"/> activity_music.xml xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" tools:context="com.olami.musicdemo.MusicActivity" > android:id="@+id/tv_inputText" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="5dp" android:text="输入：" /> android:id="@+id/tv_volume" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/tv_inputText" android:layout_below="@+id/tv_inputText" android:layout_marginTop="40dp" android:text="音量：" /> android:id="@+id/tv_result" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/tv_volume" android:layout_marginTop="20dp" android:maxLines="15" android:ellipsize="end" android:text="服务器返回sentence：" android:visibility="visible" /> android:id="@+id/music_view" android:layout_width="fill_parent" android:layout_height="80dp" android:layout_centerInParent="true" > android:id="@+id/et_content" android:layout_width="wrap_content" android:layout_height="40dp" android:layout_above="@+id/btn_stop" android:layout_alignLeft="@+id/tv_inputText" android:layout_marginBottom="10dp" android:layout_toLeftOf="@+id/btn_send" android:background="#E7E7E7" android:singleLine="true" android:text="上海的天气" /> android:id="@+id/btn_send" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/et_content" android:layout_alignBottom="@+id/et_content" android:layout_alignParentRight="true" android:text="提交" /> android:id="@+id/btn_start" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:text="开始" /> android:id="@+id/btn_stop" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/et_content" android:layout_alignParentBottom="true" android:text="停止" /> android:id="@+id/btn_cancel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_toRightOf="@+id/et_content" android:text="取消" /> 自定义MusicView比较简单，代码如下： public class MusicView extendsRelativeLayout{ private Context mContext; private Handler mHandler; private TextView mTextViewName; private TextView mTextViewTotalTime; private ProgressBar mProgressBar; public MusicView(Context context,AttributeSet attrs) { super(context,attrs); LayoutInflater inflater =(LayoutInflater) context.getSystemService( context.LAYOUT_INFLATER_SERVICE); RelativeLayout view = (RelativeLayout) inflater.inflate (R.layout.layout_musicview,this,true); mTextViewName = (TextView) view.findViewById(R.id.tv_name); mTextViewTotalTime = (TextView) view.findViewById(R.id.tv_total_time); mProgressBar = (ProgressBar)view.findViewById(R.id.progressbar_music); } public void initMusicView(Context context,Handler handler) { mContext = context; mHandler = handler; } public void setMusicName(String name) {//设置播放名称 mTextViewName.setText(name); } public void setProgress(int progress) {//设置播放进度 mProgressBar.setProgress(progress); } public void setTotalTime(String time) {//设置播放总时间 mTextViewTotalTime.setText(time); } } 布局效果图如下： 本文没有用bindservice的方式实现activity和service的消息通信。 public interface CommunicationAssist { public void callBack(int what, int arg1, int arg2,Bundle data, Objectobj); } 然后把他们分别实现CommunicationAssist接口的变量注册到OlamiApplication，这样通过OlamiApplication实现了MusicAcitity和VoiceSdkService桥接。 1)注册MusicActivity到VoiceSdkService的回调 public voidsetActivityToServiceListener(CommunicationAssist listener) { ActivityToServiceListener = listener; } 这个是在VoiceSdkService中调用setActivityToServiceListener(),把VoiceSdkService中的VoiceSdkComAssist注册到application中，MusicActivity中可以通过getActivityToServiceListener 2)注册 VoiceSdkService到MusicActivity回调 public voidsetServiceToActivityListener(CommunicationAssist listener) { mServiceToActivityListener = listener; } 这个是在MusicAcitivity中调用setServiceToActivityListener(),这样在VoiceSdkService中就可以通过getServiceToActivityListener()获得回调向MusciActivity发送消息。 public class MusicActivity extends Activity{ private Handler mHandler; private Handler mInComingHandler; private ActivityComAssist mActivityComAssist; private Button mBtnStart; private Button mBtnStop; private Button mBtnCancel; private Button mBtnSend; private EditText mEditText; private TextView mTextView; private TextView mInputTextView; private TextView mTextViewVolume; private BookUtil mBookUtil = null; private MusicView mMusicView = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_music); initHandler();//初始化handler用于内部消息处理 initInComingHandler();//用于处理来自VoiceSdkService的消息 initCommunicationAssist();//向application注册消息回调，VoiceSdkSerive可以 //通过getServiceToActivityListener()获得回调向MusicActivity发送消息 initView();//初始化view控件 Intent intent = new Intent(); intent.setClass(MusicActivity.this, VoiceSdkService.class); startService(intent);//启动后台服务 } private void initView() { mBtnStart = (Button) findViewById(R.id.btn_start); mBtnStop = (Button) findViewById(R.id.btn_stop); mBtnCancel = (Button) findViewById(R.id.btn_cancel); mBtnSend = (Button) findViewById(R.id.btn_send); mInputTextView = (TextView) findViewById(R.id.tv_inputText); mEditText = (EditText) findViewById(R.id.et_content); mTextView = (TextView) findViewById(R.id.tv_result); mTextViewVolume = (TextView) findViewById(R.id.tv_volume); mBtnStart.setOnClickListener(newOnClickListener(){ @Override public void onClick(View v) { sendMessageToService(MessageConst.CLIENT_ACTION_START_RECORED,0,0,null,null); } }); mBtnStop.setOnClickListener(new OnClickListener(){ @Override public void onClick(View v) { sendMessageToService(MessageConst.CLIENT_ACTION_STOP_RECORED,0,0,null,null); mBtnStart.setText("开始"); Log.i("led","MusicActivity mBtnStop onclick 开始"); } }); mBtnCancel.setOnClickListener(new OnClickListener(){ @Override public void onClick(View v) { sendMessageToService(MessageConst.CLIENT_ACTION_CANCEL_RECORED,0,0,null,null); } }); mBtnSend.setOnClickListener(new OnClickListener(){ @Override public void onClick(View v) { sendMessageToService( MessageConst.CLIENT_ACTION_SENT_TEXT,0,0,null,mEditText.getText()); mInputTextView.setText("文字:"+mEditText.getText()); } }); mMusicView = (MusicView) findViewById(R.id.music_view); //if(mMusicView != null) //mMusicView.initMusicView(MusicActivity.this,mHandler); } private void initHandler() { mHandler = new Handler(){ @Override public voidhandleMessage(Message msg) { switch (msg.what){ caseMessageConst.CLIENT_ACTION_START_RECORED: break; default: break; } } }; } //InComingHandler 收到来自VoiceSdkService的消息用于更新界面， //包括开始录音，结束录音，播放的书的名称和进度，音量等信息。 private void initInComingHandler() { mInComingHandler = new Handler(){ @Override public void handleMessage(Message msg) { switch (msg.what){ caseMessageConst.CLIENT_ACTION_START_RECORED: mBtnStart.setText("录音中"); Log.i("led","MusicActivity 录音中"); break; caseMessageConst.CLIENT_ACTION_STOP_RECORED: mBtnStart.setText("识别中"); Log.i("led","MusicActivity 识别中"); break; caseMessageConst.CLIENT_ACTION_CANCEL_RECORED: mBtnStart.setText("开始"); mTextView.setText("已取消"); break; caseMessageConst.CLIENT_ACTION_ON_ERROR: mTextView.setText("错误代码："+msg.arg1); mBtnStart.setText("开始"); break; caseMessageConst.CLIENT_ACTION_UPDATA_VOLUME: mTextViewVolume.setText("音量: "+msg.arg1); break; caseMessageConst.SERVER_ACTION_RETURN_RESULT: //mTextView.setText(msg.obj.toString()); mBtnStart.setText("开始"); break; caseMessageConst.CLIENT_ACTION_PLAY_BOOK_AFTER_SEARCH: mBtnStart.setText("开始"); mBookUtil =BookUtil.getInstance(); mBookUtil.play(msg.arg1); break; caseMessageConst.CLIENT_ACTION_UPDATA_PLAYING_BOOK_NAME: mMusicView.setMusicName(msg.obj.toString()); break; caseMessageConst.CLIENT_ACTION_UPDATE_BOOK_PROGRESS: int current = msg.arg1; int duration = msg.arg2; mMusicView.setProgress(current*100/duration); float time =duration/1000/60; mMusicView.setTotalTime("总时间："+time); break; caseMessageConst.CLIENT_ACTION_UPDATA_INPUT_TEXT: if(msg.obj != null) mInputTextView.setText("文字:"+msg.obj.toString()); break; caseMessageConst.CLIENT_ACTION_UPDATA_SERVER_MESSAGE: if(msg.obj != null) mTextView.setText("服务器返回sentence:"+msg.obj.toString()); break; default: break; } } }; } private void initCommunicationAssist() {//向Application注册VoiceSdkService到MusicActivity的回调 mActivityComAssist = new ActivityComAssist(); OlamiApplication.getInstance().setServiceToActivityListener(mActivityComAssist); } private void sendMessageToService(int what, int arg1, int arg2, Bundledata, Object obj) {//向VoiceSdkService发送消息 if(OlamiApplication.getInstance().getActivityToServiceListener() !=null) OlamiApplication.getInstance().getActivityToServiceListener().callBack (what, arg1, arg2, data, obj); } private class ActivityComAssist implements CommunicationAssist{ //实现CommunicationAssist借口，用于回调VoiceSdkService发送过来的消息 @Override public void callBack(int what, int arg1, int arg2, Bundle data,Objectobj) { Message msg = Message.obtain(null, what); msg.arg1 = arg1; msg.arg2 = arg2; if (data != null) msg.setData(data); if (obj != null) msg.obj = obj; mInComingHandler.sendMessage(msg); } } @Override public void onDestroy() { //退出应用，停止VoiceSdkService，会进行资源的释放 super.onDestroy(); Intent intent = new Intent(); intent.setClass(MusicActivity.this, VoiceSdkService.class); stopService(intent); } } @Override public void onCreate() { initHandler();//用于内部消息处理 initInComingHandler();//用于处理来自MusicActivity的消息 initCommunicationAssist();//向application注册消息回调，这样MusicActivity可 //以通过getActivityToServiceListener()回调向VoiceSdkService发送消息 initViaVoiceRecognizerListener();//初始化录音识别回调listener init();//olami录音识别引擎初始化 initXmly();//喜马拉雅初始化 } public void init() { initHandler(); mOlamiVoiceRecognizer = new OlamiVoiceRecognizer(VoiceSdkService.this); TelephonyManager telephonyManager=(TelephonyManager)this.getSystemService( (this.getBaseContext().TELEPHONY_SERVICE); String imei=telephonyManager.getDeviceId(); mOlamiVoiceRecognizer.init(imei);//设置身份标识，可以填null mOlamiVoiceRecognizer.setListener(mOlamiVoiceRecognizerListener);//设置识别结果回调listener mOlamiVoiceRecognizer.setLocalization( OlamiVoiceRecognizer.LANGUAGE_SIMPLIFIED_CHINESE);//设置支持的语音类型，优先选择中文简体 mOlamiVoiceRecognizer.setAuthorization("51a4bb56ba954655a4fc834bfdc46af1", "asr","68bff251789b426896e70e888f919a6d","nli"); //注册Appkey，在olami官网注册应用后生成的appkey //注册api，请直接填写“asr”，标识语音识别类型 //注册secret，在olami官网注册应用后生成的secret //注册seq ，请填写“nli” mOlamiVoiceRecognizer.setVADTailTimeout(2000);//录音时尾音结束时间，建议填//2000ms //设置经纬度信息，不愿上传位置信息，可以填0 mOlamiVoiceRecognizer.setLatitudeAndLongitude(31.155364678184498,121.34882432933009); } 定义OlamiVoiceRecognizerListener onError(int errCode)//出错回调，可以对比官方文档错误码看是什么错误 下面是VoiceSdkService完整代码： public class VoiceSdkService extends Service{ private Handler mHandler; private Handler mInComingHandler; private VoiceSdkComAssist mVoiceSdkComAssist; private OlamiVoiceRecognizer mOlamiVoiceRecognizer; private OlamiVoiceRecognizerListener mOlamiVoiceRecognizerListener; privateBookUtil mBookUtil = null; private boolean mIsRecordPause = false; @Override public void onCreate() { initHandler(); initInComingHandler(); initCommunicationAssist(); initViaVoiceRecognizerListener(); init(); initXmly(); } @Override public IBinder onBind(Intent intent) { // TODO Auto-generated method stub return null; } public void init() { initHandler(); mOlamiVoiceRecognizer = new OlamiVoiceRecognizer(VoiceSdkService.this); TelephonyManager telephonyManager=(TelephonyManager)this.getSystemService( this.getBaseContext().TELEPHONY_SERVICE); String imei=telephonyManager.getDeviceId(); mOlamiVoiceRecognizer.init(imei);//set null if you do not want to notifyolami server. mOlamiVoiceRecognizer.setListener(mOlamiVoiceRecognizerListener); mOlamiVoiceRecognizer.setLocalization( OlamiVoiceRecognizer.LANGUAGE_SIMPLIFIED_CHINESE); mOlamiVoiceRecognizer.setAuthorization( "51a4bb56ba954655a4fc834bfdc46af1", "asr","68bff251789b426896e70e888f919a6d","nli"); mOlamiVoiceRecognizer.setVADTailTimeout(2000); mOlamiVoiceRecognizer.setLatitudeAndLongitude(31.155364678184498,121.34882432933009); } private void initHandler() { mHandler = new Handler(){ @Override public void handleMessage(Message msg) { switch (msg.what){ caseMessageConst.CLIENT_ACTION_START_RECORED: sendMessageToActivity(MessageConst.CLIENT_ACTION_START_RECORED,0,0,null,null); break; case MessageConst.CLIENT_ACTION_STOP_RECORED: sendMessageToActivity(MessageConst.CLIENT_ACTION_STOP_RECORED,0,0,null,null); break; caseMessageConst.CLIENT_ACTION_ON_ERROR: sendMessageToActivity(MessageConst.CLIENT_ACTION_ON_ERROR,msg.arg1,0,null,null); break; caseMessageConst.CLIENT_ACTION_PLAY_BOOK_AFTER_SEARCH: sendMessageToActivity(MessageConst. CLIENT_ACTION_PLAY_BOOK_AFTER_SEARCH,msg.arg1, 0, null, msg.obj); break; caseMessageConst.CLIENT_ACTION_UPDATA_PLAYING_BOOK_NAME: sendMessageToActivity(MessageConst. CLIENT_ACTION_UPDATA_PLAYING_BOOK_NAME, msg.arg1, 0, null, msg.obj); break; caseMessageConst.CLIENT_ACTION_UPDATE_BOOK_PROGRESS: sendMessageToActivity(MessageConst. CLIENT_ACTION_UPDATE_BOOK_PROGRESS,msg.arg1, msg.arg2, null, null); break; caseMessageConst.CLIENT_ACTION_CANCEL_RECORED: sendMessageToActivity(MessageConst. CLIENT_ACTION_CANCEL_RECORED,msg.arg1, msg.arg2, null, null); break; default: break; } } }; } private void initInComingHandler() { mInComingHandler = new Handler(){ @Override public void handleMessage(Message msg) { switch (msg.what){ caseMessageConst.CLIENT_ACTION_START_RECORED: if(mOlamiVoiceRecognizer !=null) mOlamiVoiceRecognizer.start(); break; caseMessageConst.CLIENT_ACTION_STOP_RECORED: if(mOlamiVoiceRecognizer !=null) mOlamiVoiceRecognizer.stop(); break; caseMessageConst.CLIENT_ACTION_CANCEL_RECORED: if(mOlamiVoiceRecognizer !=null) mOlamiVoiceRecognizer.cancel(); break; case MessageConst.CLIENT_ACTION_SENT_TEXT: if(mOlamiVoiceRecognizer !=null) mOlamiVoiceRecognizer.sendText(msg.obj.toString()); break; } } }; } private void initViaVoiceRecognizerListener() { mOlamiVoiceRecognizerListener = new OlamiVoiceRecognizerListener(); } private class OlamiVoiceRecognizerListener implementsIOlamiVoiceRecognizerListener{ @Override public void onError(int errCode) { mHandler.sendMessage(mHandler.obtainMessage( MessageConst.CLIENT_ACTION_ON_ERROR,errCode,0)); } @Override public void onEndOfSpeech() { mHandler.sendEmptyMessage(MessageConst.CLIENT_ACTION_STOP_RECORED); if(mIsRecordPause) { mIsRecordPause = false; mBookUtil.resumePlay(); } } @Override public void onBeginningOfSpeech() { if(mBookUtil.isPlaying()) { mBookUtil.pause(); mIsRecordPause = true; } mHandler.sendEmptyMessage(MessageConst.CLIENT_ACTION_START_RECORED); } @Override public void onResult(String result, int type) { sendMessageToActivity(MessageConst.SERVER_ACTION_RETURN_RESULT,type,0,null,result); processServiceMessage(result); } @Override public void onCancel() { mHandler.sendEmptyMessage(MessageConst.CLIENT_ACTION_CANCEL_RECORED); } @Override public void onUpdateVolume(int volume) { sendMessageToActivity(MessageConst.CLIENT_ACTION_UPDATA_VOLUME,volume,0,null,null); } } private void initCommunicationAssist() { mVoiceSdkComAssist = new VoiceSdkComAssist(); OlamiApplication.getInstance().setActivityToServiceListener(mVoiceSdkComAssist); } private void initXmly() { if(mBookUtil == null) { mBookUtil = BookUtil.getInstance(); mBookUtil.init(VoiceSdkService.this); mBookUtil.setHandler(mHandler); } } private void processServiceMessage(String message) { String input = null; String serverMessage = null; try{ JSONObject jsonObject = new JSONObject(message); JSONArray jArrayNli = jsonObject.optJSONObject("data").optJSONArray("nli"); JSONObject jObj = jArrayNli.optJSONObject(0); JSONArray jArraySemantic = null; if(message.contains("semantic")) jArraySemantic =jObj.getJSONArray("semantic"); else{ input =jsonObject.optJSONObject("data").optJSONObject("asr"). optString("result"); sendMessageToActivity(MessageConst. CLIENT_ACTION_UPDATA_INPUT_TEXT, 0, 0, null, input);2.layout布局文件
ProgressBar实时刷新显示听书的进度
3.MusicActivity和VoiceSdkService通信
MusicAcitity和 VoiceSdkService中分别实现了一个CommunicationAssist的接口3.1OlamiApplication
这个函数回调向VoiceSdkService发送消息。3.2MusicActivity
3.3VoiceSdkService
onEndOfSpeech()//录音结束
onBeginningOfSpeech()//录音开始
onResult(String result, int type)//result是识别结果JSON字符串
onCancel()//取消识别，不会再返回识别结果
onUpdateVolume(int volume)//录音时的音量，1-12个级别大小音量
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