网上有很多关于讯飞Sdk植入到Unity3d的博客教程，这里做一个总结，专为超级初学者。
第一步，在科大讯飞官网上下载语音Sdk包
参考这篇博客：
获得Sdk：
第二步：生成Android Jar包
参考这篇博客：，
Android版本为24，可以根据需要适当更改。
流程如下：
1、AS新建工程，EmptyActivity，这样省了在AndroidManifest添加权限的步骤，同时可以删除layout文件夹中的布局文件，因为导入到unity中用不到。
2、File-New-New Module，新建AndroidLibrary，命名随意，在这里命名为speechrecognizer2。
3、将讯飞SDK文件夹中的MSC.jar考到libs文件夹下。在main文件夹下新建文件夹jinLibs，将SDK中的so文件考进来，如图：
4、在Unity安装目录下找到classes.jar文件。同样，考到libs文件夹下。路径：
\Unity\Editor\Data\PlaybackEngines\AndroidPlayer\Variations\mono\Release\Classes
5、此时需要在工程中关联jar。File-Project Structure。左侧选中步骤二中新建的Library。点击右方加号，选择Files dependency。将步骤3、4中加入的jar包关联到module。如图：
6、设置Android studio 的Android Sdk位置和Java jdk位置，File-Project Structure-SDK Location；
7、环境搭建完成后，开始写代码。
MainActivity中的代码和网上其他的方法大同小异，直接上源码：
package com.ssm.ssm.speechrecognizer;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
import com.iflytek.cloud.InitListener;
import com.iflytek.cloud.RecognizerListener;
import com.iflytek.cloud.RecognizerResult;
import com.iflytek.cloud.SpeechConstant;
import com.iflytek.cloud.SpeechError;
import com.iflytek.cloud.SpeechSynthesizer;
import com.iflytek.cloud.SpeechUtility;
import com.iflytek.cloud.SpeechRecognizer;
import com.iflytek.cloud.SynthesizerListener;
import com.unity3d.player.UnityPlayer;
import com.unity3d.player.UnityPlayerActivity;
import org.json.JSONArray;
import org.json.JSONObject;
import org.json.JSONTokener;
public class MainActivity extends UnityPlayerActivity {
public SpeechRecognizer speechRecognizer;
public SpeechSynthesizer speechSynthesizer;
private String ttsSpeakerName = "yefang";
private String ttsSpeakerPitch = "50";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//注意这里的appid为自己的sdk id
SpeechUtility.createUtility(getApplicationContext(),"appid=59dccd45");
initRecognizer();
}
//初始化
private void initRecognizer(){
speechRecognizer = SpeechRecognizer.createRecognizer(getApplicationContext(),mInitListener);
speechSynthesizer = SpeechSynthesizer.createSynthesizer(getApplicationContext(),mInitListener);
}
public InitListener mInitListener = new InitListener() {
@Override
public void onInit(int i) {
UnityPlayer.UnitySendMessage("Manager", "Result", "init success!");
}
};
public void setTTSSpeaker(String targetName) {
ttsSpeakerName = targetName;
}
public void setTTSPitch(String targetPitch) {
ttsSpeakerPitch = targetPitch;
}
public void doTTS(String ttsStr){
UnityPlayer.UnitySendMessage("Manager", "IsSpeaking", "doTTS");
//设置发音人
speechSynthesizer.setParameter(SpeechConstant.VOICE_NAME,ttsSpeakerName);
//设置音调
speechSynthesizer.setParameter(SpeechConstant.PITCH,ttsSpeakerPitch);
//设置音量
speechSynthesizer.setParameter(SpeechConstant.VOLUME,"50");
int code = speechSynthesizer.startSpeaking(ttsStr, mTTSListener);
}
private SynthesizerListener mTTSListener = new SynthesizerListener() {
@Override
public void onSpeakBegin() {
// UnityPlayer.UnitySendMessage("Manager", "IsSpeaking", "onSpeakBegin ");
}
@Override
public void onBufferProgress(int i, int i1, int i2, String s) {
// UnityPlayer.UnitySendMessage("Manager", "IsSpeaking", "onBufferProgress ");
}
@Override
public void onSpeakPaused() {
// UnityPlayer.UnitySendMessage("Manager", "IsSpeaking", "onSpeakPaused ");
}
@Override
public void onSpeakResumed() {
// UnityPlayer.UnitySendMessage("Manager", "IsSpeaking", "onSpeakResumed ");
}
@Override
public void onSpeakProgress(int i, int i1, int i2) {
// UnityPlayer.UnitySendMessage("Manager", "IsSpeaking", "onSpeakProgress ");
}
@Override
public void onCompleted(SpeechError speechError) {
// UnityPlayer.UnitySendMessage("Manager", "IsSpeaking", "onCompleted ");
}
@Override
public void onEvent(int i, int i1, int i2, Bundle bundle) {
}
};
//开始听写
public void startSpeechListener(){
UnityPlayer.UnitySendMessage("Manager", "Result", "");
speechRecognizer.setParameter(SpeechConstant.DOMAIN, "iat");
speechRecognizer.setParameter(SpeechConstant.LANGUAGE, "zh_cn");
speechRecognizer.setParameter(SpeechConstant.ACCENT, "mandarin");
speechRecognizer.startListening(mRecognizerListener);
}
public RecognizerListener mRecognizerListener = new RecognizerListener(){
@Override
public void onBeginOfSpeech() {
// TODO Auto-generated method stub
// UnityPlayer.UnitySendMessage("Manager", "Result", "onBeginOfSpeech ");
}
@Override
public void onEndOfSpeech() {
// TODO Auto-generated method stub
// UnityPlayer.UnitySendMessage("Manager", "Result", "onEndOfSpeech ");
//startSpeechListener();
//UnityPlayer.UnitySendMessage("Manager", "SpeechEnd","");
}
@Override
public void onError(SpeechError arg0) {
// TODO Auto-generated method stub
// UnityPlayer.UnitySendMessage("Manager", "Result", "onError ");
}
@Override
public void onEvent(int arg0, int arg1, int arg2, Bundle arg3) {
// TODO Auto-generated method stub
// UnityPlayer.UnitySendMessage("Manager", "Result", "onEvent ");
}
@Override
public void onResult(RecognizerResult recognizerResult, boolean isLast) {
// UnityPlayer.UnitySendMessage("Manager", "Result", "listener ");
printResult(recognizerResult);
//if(isLast)
//startSpeechListener();
}
@Override
public void onVolumeChanged(int arg0, byte[] arg1) {
// UnityPlayer.UnitySendMessage("Manager", "Result", "onVolumeChanged ");
// TODO Auto-generated method stub
}
};
//解析
private void printResult(RecognizerResult results) {
String json = results.getResultString();
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++) {
// 转写结果词，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"));
}
} catch (Exception e) {
e.printStackTrace();
}
//将解析结果“"result:" + ret.toString()”发送至“Manager”这个GameObject，中的“Result”函数
UnityPlayer.UnitySendMessage("Manager", "Result", ret.toString());
}
public void ShowToast(final String mStr2Show){
UnityPlayer.UnitySendMessage("Manager", "Result", "toast");
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),mStr2Show,Toast.LENGTH_LONG).show();
}
});
}
}特别注意几个地方：
（1）此位置名字必须与unity打包Apk id位置一样。
（2）输出解析语音后的代码，unity scene必须有一个名为Manager的对象，且脚本有一个Result的函数。
AndroidManifest中添加权限，同样，和其他教程大同小异，源码：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.ssm.ssm.speechrecognizer">
<application
android:allowBackup="true"
android:label="@string/app_name"
android:supportsRtl="true">
<activity android:name=".MainActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data android:name="unityplayer.UnityActivity" android:value="true" />
</activity>
</application>
<!--连接网络权限,用于执行云端语音能力 -->
<uses-permission android:name="android.permission.INTERNET"/>
<!--获取手机录音机使用权限,听写、识别、语义理解需要用到此权限 -->
<uses-permission android:name="android.permission.RECORD_AUDIO"/>
<!--读取网络信息状态 -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<!--获取当前wifi状态 -->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<!--允许程序改变网络连接状态 -->
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>
<!--读取手机信息权限 -->
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<!--读取联系人权限,上传联系人需要用到此权限 -->
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<!--外存储写权限,构建语法需要用到此权限 -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<!--外存储读权限,构建语法需要用到此权限 -->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<!--配置权限,用来记录应用配置信息 -->
<uses-permission android:name="android.permission.WRITE_SETTINGS"/>
<!--摄相头权限,拍照需要用到 -->
<uses-permission android:name="android.permission.CAMERA" />
</manifest>此段权限用于在unity交互,不添加在unity打包时会有警告信息出现（如下图）；
此时，作为AS，为了导出jar，需要在build.gradle底部添加以下两段代码：
task makeJar(type: Copy) {
delete 'build/libs/speechrecognizer.jar'
from('build/intermediates/bundles/release/')
into('build/libs/')
include('classes.jar')
rename ('classes.jar', 'speechrecognizer.jar')
}
makeJar.dependsOn(build)
// 在终端执行生成JAR包
// gradlew makeJar
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile files('libs/classes.jar')
}
8、至此，jar包已经编写完成。现在导出jar。在Terminal中输入 gradlew makejar。如图：
9、等待完成后即可在libs下看到jar文件：
第三步：新建Unity项目，生成Apk
10、新建Unity项目，在Asset文件夹下新建如下结构：
11、如步骤9，在bin文件夹下拷贝AS导出的jar。libs文件夹下拷贝SDK中的MSC.jar，和os文件，注意，安卓5.0以上系统需要armeabi-v7a，不然会出现21002的错误。
最后在Android文件夹下拷贝AndroidManifest文件。
12、新建编写Manger脚本文件，取名为XunFeiTest。源码
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class XunFeiTest : MonoBehaviour {
// Use this for initialization
void Start () {
}
// Update is called once per frame
void Update () {
}
private string showResult = "";
public Text shurukuang;
public void Kaishi ()
{
AndroidJavaClass jc = new AndroidJavaClass ("com.unity3d.player.UnityPlayer");
AndroidJavaObject jo = jc.GetStatic<AndroidJavaObject> ("currentActivity");
jo.Call ("startSpeechListener");
}
public void Result (string recognizerResult)
{
showResult += recognizerResult;
showResult += '\n';
shurukuang.text = showResult;
}
}
13、新建一个开始录音启动button，和显示text，修改main camera相机名字为Manger，并拖动上述脚本到Manger对象。
将场景中的Result Text关联到脚本中text对象上。
关联button onclick为脚本的kaishi函数
14、场景与脚本已经配置完毕，下面开始打包生成Apk，File-Build Setting
15、点击Build-选择生成位置和名字，就可以生成安装文件啦。发布手机截图
