Android语音识别
语音识别
- 科大讯飞 开放平台 http://open.voicecloud.cn/
需要拷贝lib、assets、并在清单文件中写一些权限
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 初始化语音引擎
SpeechUtility.createUtility(this, SpeechConstant.APPID + "=54b8bca3");
}
/**
* 开始听写
*
* @param view
*/
public void listen(View view) {
// 1.创建SpeechRecognizer对象，第二个参数：本地听写时传InitListener
SpeechRecognizer mIat = SpeechRecognizer.createRecognizer(this, null);
// 2.设置听写参数，详见《科大讯飞MSC API手册(Android)》SpeechConstant类
mIat.setParameter(SpeechConstant.DOMAIN, "iat");
mIat.setParameter(SpeechConstant.LANGUAGE, "zh_cn");
mIat.setParameter(SpeechConstant.ACCENT, "mandarin");
// 开始听写
mIat.startListening(mRecoListener);
}
/**
* 交互动画
*
* @param view
*/
public void listenUI(View view) {
RecognizerDialog iatDialog = new RecognizerDialog(this, mInitListener);
// 2.设置听写参数，详见《科大讯飞MSC API手册(Android)》SpeechConstant类
iatDialog.setParameter(SpeechConstant.DOMAIN, "iat");
iatDialog.setParameter(SpeechConstant.LANGUAGE, "zh_cn");
iatDialog.setParameter(SpeechConstant.ACCENT, "mandarin");
iatDialog.setListener(recognizerDialogListener);
iatDialog.show();
}
/**
* 语音朗诵
*/
public void read(View view) {
SpeechSynthesizer mTts = SpeechSynthesizer
.createSynthesizer(this, null);
mTts.setParameter(SpeechConstant.VOICE_NAME, "vixm");
mTts.setParameter(SpeechConstant.SPEED, "50");
mTts.setParameter(SpeechConstant.VOLUME, "80");
mTts.setParameter(SpeechConstant.ENGINE_TYPE, SpeechConstant.TYPE_CLOUD);
mTts.startSpeaking("床前明月光,地上鞋两双,床上狗男女,其中就有你! 你好啊?",
mSynthesizerListener);
}
private SynthesizerListener mSynthesizerListener = new SynthesizerListener() {
@Override
public void onSpeakResumed() {
// TODO Auto-generated method stub
}
@Override
public void onSpeakProgress(int arg0, int arg1, int arg2) {
// TODO Auto-generated method stub
}
@Override
public void onSpeakPaused() {
// TODO Auto-generated method stub
}
@Override
public void onSpeakBegin() {
// TODO Auto-generated method stub
}
@Override
public void onEvent(int arg0, int arg1, int arg2, Bundle arg3) {
// TODO Auto-generated method stub
}
@Override
public void onCompleted(SpeechError arg0) {
// TODO Auto-generated method stub
}
@Override
public void onBufferProgress(int arg0, int arg1, int arg2, String arg3) {
// TODO Auto-generated method stub
}
};
private RecognizerDialogListener recognizerDialogListener = new RecognizerDialogListener() {
@Override
public void onResult(RecognizerResult results, boolean isLast) {
System.out.println(results.getResultString());
System.out.println("isLast=" + isLast);
}
@Override
public void onError(SpeechError arg0) {
}
};
private InitListener mInitListener = new InitListener() {
@Override
public void onInit(int arg0) {
}
};
private RecognizerListener mRecoListener = new RecognizerListener() {
/**
* 语音识别结果 isLast=true表示会话结束
*/
@Override
public void onResult(RecognizerResult results, boolean isLast) {
System.out.println(results.getResultString());
}
@Override
public void onBeginOfSpeech() {
// TODO Auto-generated method stub
}
@Override
public void onEndOfSpeech() {
// TODO Auto-generated method stub
}
@Override
public void onError(SpeechError arg0) {
// TODO Auto-generated method stub
}
@Override
public void onEvent(int arg0, int arg1, int arg2, Bundle arg3) {
// TODO Auto-generated method stub
}
@Override
public void onVolumeChanged(int arg0) {
// TODO Auto-generated method stub
}
};
}
聊天机器人
1.主布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ListView
android:id="@+id/lv_list"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:divider="@null"
android:layout_weight="1" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/bottom_bar"
android:gravity="center"
android:orientation="vertical" >
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:background="@drawable/btn_selector"
android:onClick="startListen"
android:text="点击开始语音识别"
android:textColor="#000"
android:textSize="16sp" />
</LinearLayout>
</LinearLayout>
2.子布局
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="@+id/tv_ask"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_margin="5dp"
android:background="@drawable/asker_bubble"
android:gravity="center"
android:text="你吃饭了吗?"
android:textColor="#000"
android:textSize="16sp" />
<LinearLayout
android:id="@+id/ll_answer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/tv_ask"
android:layout_margin="5dp"
android:background="@drawable/answer_bubble"
android:orientation="vertical" >
<TextView
android:id="@+id/tv_answer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="吃个毛线啊!"
android:textColor="#000"
android:textSize="16sp" />
<ImageView
android:id="@+id/iv_pic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/m"
android:visibility="gone" />
</LinearLayout>
</RelativeLayout>
3.代码
聊天信息对象
public class ChatBean {
public String text;// 内容
public boolean isAsker;// true表示提问者,否则是回答者
public int imageId = -1;// 图片id
public ChatBean(String text, boolean isAsker, int imageId) {
this.text = text;
this.isAsker = isAsker;
this.imageId = imageId;
}
}
语音信息封装类（需要解析json数据）
-
public class VoiceBean { public ArrayList<WSBean> ws; public class WSBean { public ArrayList<CWBean> cw; } public class CWBean { public String w; } }
mainactivity：
public class MainActivity extends Activity {
private ListView lvList;
private ArrayList<ChatBean> mChatList = new ArrayList<ChatBean>();
private ChatAdapter mAdapter;
private String[] mMMAnswers = new String[] { "约吗?", "讨厌!", "不要再要了!",
"这是最后一张了!", "漂亮吧?" };
private int[] mMMImageIDs = new int[] { R.drawable.p1, R.drawable.p2,
R.drawable.p3, R.drawable.p4 };
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lvList = (ListView) findViewById(R.id.lv_list);
mAdapter = new ChatAdapter();
lvList.setAdapter(mAdapter);
// 初始化语音引擎
SpeechUtility.createUtility(this, SpeechConstant.APPID + "=54b8bca3");
}
StringBuffer mTextBuffer = new StringBuffer();
private RecognizerDialogListener recognizerDialogListener = new RecognizerDialogListener() {
@Override
public void onResult(RecognizerResult results, boolean isLast) {
// System.out.println(results.getResultString());
// System.out.println("isLast=" + isLast);
String text = parseData(results.getResultString());
mTextBuffer.append(text);
if (isLast) {// 会话结束
String finalText = mTextBuffer.toString();
mTextBuffer = new StringBuffer();// 清理buffer
System.out.println("最终结果:" + finalText);
mChatList.add(new ChatBean(finalText, true, -1));
String answer = "没听清";
int imageId = -1;
if (finalText.contains("你好")) {
answer = "大家好,才是真的好!";
} else if (finalText.contains("你是谁")) {
answer = "我是你的小助手!";
} else if (finalText.contains("天王盖地虎")) {
answer = "小鸡炖蘑菇";
imageId = R.drawable.m;
} else if (finalText.contains("美女")) {
Random random = new Random();
int i = random.nextInt(mMMAnswers.length);
int j = random.nextInt(mMMImageIDs.length);
answer = mMMAnswers[i];
imageId = mMMImageIDs[j];
}
mChatList.add(new ChatBean(answer, false, imageId));// 添加回答数据
mAdapter.notifyDataSetChanged();// 刷新listview
lvList.setSelection(mChatList.size() - 1);// 定位到最后一张
read(answer);
}
}
@Override
public void onError(SpeechError arg0) {
}
};
/**
* 语音朗诵
*/
public void read(String text) {
SpeechSynthesizer mTts = SpeechSynthesizer
.createSynthesizer(this, null);
mTts.setParameter(SpeechConstant.VOICE_NAME, "xiaoyan");
mTts.setParameter(SpeechConstant.SPEED, "50");
mTts.setParameter(SpeechConstant.VOLUME, "80");
mTts.setParameter(SpeechConstant.ENGINE_TYPE, SpeechConstant.TYPE_CLOUD);
mTts.startSpeaking(text, null);
}
/**
* 开始语音识别
*
* @param view
*/
public void startListen(View view) {
RecognizerDialog iatDialog = new RecognizerDialog(this, null);
// 2.设置听写参数，详见《科大讯飞MSC API手册(Android)》SpeechConstant类
iatDialog.setParameter(SpeechConstant.DOMAIN, "iat");
iatDialog.setParameter(SpeechConstant.LANGUAGE, "zh_cn");
iatDialog.setParameter(SpeechConstant.ACCENT, "mandarin");
iatDialog.setListener(recognizerDialogListener);
iatDialog.show();
}
class ChatAdapter extends BaseAdapter {
@Override
public int getCount() {
return mChatList.size();
}
@Override
public ChatBean getItem(int position) {
return mChatList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
convertView = View.inflate(MainActivity.this,
R.layout.list_item, null);
holder.tvAsk = (TextView) convertView.findViewById(R.id.tv_ask);
holder.tvAnswer = (TextView) convertView
.findViewById(R.id.tv_answer);
holder.llAnswer = (LinearLayout) convertView
.findViewById(R.id.ll_answer);
holder.ivPic = (ImageView) convertView
.findViewById(R.id.iv_pic);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
ChatBean item = getItem(position);
if (item.isAsker) {// 是提问者
holder.tvAsk.setVisibility(View.VISIBLE);
holder.llAnswer.setVisibility(View.GONE);
holder.tvAsk.setText(item.text);
} else {
holder.tvAsk.setVisibility(View.GONE);
holder.llAnswer.setVisibility(View.VISIBLE);
holder.tvAnswer.setText(item.text);
if (item.imageId != -1) {// 有图片
holder.ivPic.setVisibility(View.VISIBLE);
holder.ivPic.setImageResource(item.imageId);
} else {
holder.ivPic.setVisibility(View.GONE);
}
}
return convertView;
}
}
static class ViewHolder {
public TextView tvAsk;
public TextView tvAnswer;
public LinearLayout llAnswer;
public ImageView ivPic;
}
/**
* 解析语音数据
*
* @param resultString
*/
protected String parseData(String resultString) {
Gson gson = new Gson();
VoiceBean bean = gson.fromJson(resultString, VoiceBean.class);
ArrayList<WSBean> ws = bean.ws;
StringBuffer sb = new StringBuffer();
for (WSBean wsBean : ws) {
String text = wsBean.cw.get(0).w;
sb.append(text);
}
return sb.toString();
}
}
