Android语音合成与语音识别

Android语音合成与语音识别

这里调用科大讯飞语音的API,语音云开放平台介绍：http://open.voicecloud.cn/

调用科大讯飞语音的API,需要加添库文件Msc.jar,添加libmsc.so文件,还需添加权限,具体步骤可参看SDK里的文档

参看开发的文档写了一个简单的语音合成和识别demo,图示如下

在EditText里输入文字,点击语音合成,可以实现文字转化为语音

点击语音合成,输入语音,识别的文字以提示的形式显示,并且显示在EditText中

主要代码如下,注意appid需要自己申请

package com.example.voice;import java.util.ArrayList;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;import com.iflytek.cloud.speech.*;public class VoiceActivity extends Activity {private static final String APPID = "appid=52cddb99";private EditText et = null;private Button btn1 = null;private Button btn2 = null;String text = "";String temp="";protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_voice);et = (EditText) findViewById(R.id.et);btn1 = (Button) findViewById(R.id.btn1);btn1.setOnClickListener(mylistener);btn2 = (Button) findViewById(R.id.btn2);btn2.setOnClickListener(mylistener);}private OnClickListener mylistener = new OnClickListener() {public void onClick(View v) {SpeechUser.getUser().login(VoiceActivity.this, null, null, APPID,loginListener);Button btn = (Button) v;switch (btn.getId()) {case R.id.btn1:SpeechSynthesizer mSpeechSynthesizer = SpeechSynthesizer.createSynthesizer(VoiceActivity.this);mSpeechSynthesizer.setParameter(SpeechConstant.VOICE_NAME,"xiaoyu");mSpeechSynthesizer.setParameter(SpeechConstant.SPEED, "50");mSpeechSynthesizer.startSpeaking(et.getText().toString(),mSynListener);break;case R.id.btn2:text = "";temp="";SpeechRecognizer recognizer = SpeechRecognizer.createRecognizer(VoiceActivity.this);recognizer.setParameter(SpeechConstant.DOMAIN, "iat");recognizer.setParameter(SpeechConstant.LANGUAGE, "zh_cn");recognizer.setParameter(SpeechConstant.ACCENT, "accent");recognizer.startListening(mRecoListener);break;}}};private SynthesizerListener mSynListener = new SynthesizerListener() {public void onBufferProgress(int arg0, int arg1, int arg2, String arg3) {}public void onCompleted(SpeechError arg0) {}public void onSpeakBegin() {}public void onSpeakPaused() {}public void onSpeakProgress(int arg0, int arg1, int arg2) {}public void onSpeakResumed() {}};private RecognizerListener mRecoListener = new RecognizerListener() {public void onBeginOfSpeech() {}public void onEndOfSpeech() {}public void onError(SpeechError error) {}public void onEvent(int arg0, int arg1, int arg2, String arg3) {}public void onVolumeChanged(int arg0) {}public void onResult(RecognizerResult results, boolean isLast) {//将解析后的字符串连在一起temp=results.getResultString();JsonParser json = new JsonParser();text+=json.parseIatResult(temp);if(isLast==true){et.setText(text, null);Toast.makeText(VoiceActivity.this,text,Toast.LENGTH_LONG).show();}}};private SpeechListener loginListener = new SpeechListener() {public void onCompleted(SpeechError arg0) {}public void onData(byte[] arg0) {}public void onEvent(int arg0, Bundle arg1) {}};public boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.voice, menu);return true;}}

布局文件

<TableLayout 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:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".VoiceActivity" >    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:gravity="center"        android:text="VoiceApplication" />    <EditText        android:id="@+id/et"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:gravity="top"        android:layout_weight="0.32" />    <Button        android:id="@+id/btn1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_weight="0.03"        android:text="语音合成" />        <Button         android:id="@+id/btn2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_weight="0.03"        android:text="语音识别" />       </TableLayout>

解析Json格式的数据是参照讯飞的文档中的

package com.example.voice;import org.json.JSONArray;import org.json.JSONObject;import org.json.JSONTokener;import android.text.TextUtils;//import com.iflytek.speech.ErrorCode;//import com.iflytek.speech.SpeechError;/** * 对云端返回的Json结果进行解析 *  * @author iFlytek * @since 20131211 */public class JsonParser {/** * 听写结果的Json格式解析 *  * @param json * @return */public static String parseIatResult(String json) {if (TextUtils.isEmpty(json))return "";StringBuffer ret = new StringBuffer();try {JSONTokener tokener = new JSONTokener(json);JSONObject joResult = new JSONObject(tokener);JSONArray words = joResult.getJSONArray("ws");for (int i = 0; i < words.length(); i++) {// 听写结果词，默认使用第一个结果JSONArray items = words.getJSONObject(i).getJSONArray("cw");JSONObject obj = items.getJSONObject(0);ret.append(obj.getString("w"));// 如果需要多候选结果，解析数组其他字段// for(int j = 0; j < items.length(); j++)// {// JSONObject obj = items.getJSONObject(j);// ret.append(obj.getString("w"));// }}} catch (Exception e) {e.printStackTrace();}return ret.toString();}}