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();
 }

}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。