Android实现语音合成与识别功能

Android语音合成与语音识别，供大家参考，具体内容如下

这里调用科大讯飞语音的API,语音云开放平台介绍

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();
}

}

来源：https://blog.csdn.net/suancaiyucoding/article/details/19121799