windows下利用微软的SpeechSDK实现语音控制

语音识别是当前研究的热点，我们可以利用微软的语音识别引擎来进行二次开发。首先需要安装微软的SpeechSDK，安装完成后配置项目的包含目录和库目录,这些都不是重点，不会的可以去百度。然后就可以写代码了，码农嘛，还是看代码有感觉。

源文件<Demo.cpp>

#include <Windows.h>
#include <atlstr.h>
#include <sphelper.h>
#include <sapi.h>
#include <comutil.h>
#include <string.h>
#pragma comment(lib,"sapi.lib")
#ifdef _UNICODE
#pragma
comment(lib,
"comsuppw.lib")
//_com_util::ConvertBSTRToString
#else
#pragma
comment(lib,
"comsupp.lib")
//_com_util::ConvertBSTRToString
#endif
#define GID_CMD_GR 333333
#define WM_RECOEVENT WM_USER+1
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
TCHAR szAppName[] = TEXT("语音控制Demo");
BOOL b_initSR;
BOOL b_Cmd_Grammar;
CComPtr<ISpRecoContext> m_cpRecoCtxt;//语音识别程序接口
CComPtr<ISpRecoGrammar> m_cpCmdGramma;//识别语法
CComPtr<ISpRecognizer> m_cpRecoEngine; //语音识别引擎
int speak(wchar_t *str);
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,PSTR szCmdLine,int iCmdShow)
{
HWND hwnd;
MSG msg;
WNDCLASS wndclass;
//窗口类结构体初始化值
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wndclass.hCursor = LoadCursor(NULL,IDC_ARROW);
wndclass.hIcon = LoadIcon(NULL,IDI_APPLICATION);
wndclass.hInstance = hInstance;
wndclass.lpfnWndProc = WndProc;
wndclass.lpszClassName = szAppName;
wndclass.lpszMenuName = NULL;
wndclass.style = CS_HREDRAW|CS_VREDRAW;
//注册窗口类
if(!RegisterClass(&wndclass))
{
//失败后提示并返回
MessageBox(NULL,TEXT("This program requires Windows NT!"),szAppName,MB_ICONERROR);
return 0;
}
//创建窗口
hwnd = CreateWindow(szAppName,
TEXT("语音识别"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
hInstance,
NULL);
//显示窗口
ShowWindow(hwnd,iCmdShow);
UpdateWindow(hwnd);
//进入消息循环
while(GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);//翻译消息
DispatchMessage(&msg);//分发消息
}
return msg.wParam;
}
/*
*消息回调函数,由操作系统调用
*/
LRESULT CALLBACK WndProc(HWND hwnd, UINT message,WPARAM wParam,LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
switch(message)
{
case WM_CREATE:
{
//初始化COM端口
::CoInitializeEx(NULL,COINIT_APARTMENTTHREADED);
//创建识别上下文接口
HRESULT hr = m_cpRecoEngine.CoCreateInstance(CLSID_SpSharedRecognizer);
if(SUCCEEDED(hr))
{
hr = m_cpRecoEngine->CreateRecoContext(&m_cpRecoCtxt);
}
else
{
MessageBox(hwnd,TEXT("引擎实例化出错"),TEXT("提示"),S_OK);
}
//设置识别消息，使计算机时刻监听语音消息
if(SUCCEEDED(hr))
{
hr = m_cpRecoCtxt->SetNotifyWindowMessage(hwnd,WM_RECOEVENT,0,0);
}
else
{
MessageBox(hwnd,TEXT("创建上下文接口出错"),TEXT("提示"),S_OK);
}
//设置我们感兴趣的事件
if(SUCCEEDED(hr))
{
ULONGLONG ullMyEvents = SPFEI(SPEI_SOUND_START)|SPFEI(SPEI_RECOGNITION)|SPFEI(SPEI_SOUND_END);
hr = m_cpRecoCtxt->SetInterest(ullMyEvents,ullMyEvents);
}
else
{
MessageBox(hwnd,TEXT("设置识别消息出错"),TEXT("提示"),S_OK);
}
//创建语法规则
b_Cmd_Grammar = TRUE;
if(FAILED(hr))
{
MessageBox(hwnd,TEXT("创建语法规则出错"),TEXT("提示"),S_OK);
}
hr = m_cpRecoCtxt->CreateGrammar(GID_CMD_GR,&m_cpCmdGramma);
hr = m_cpCmdGramma->LoadCmdFromFile(L"cmd.xml",SPLO_DYNAMIC);
if(FAILED(hr))
{
MessageBox(hwnd,TEXT("配置文件打开出错"),TEXT("提示"),S_OK);
}
b_initSR = TRUE;
//在开始识别时，激活语法进行识别
hr = m_cpCmdGramma->SetRuleState(NULL,NULL,SPRS_ACTIVE);
break;
}
case WM_RECOEVENT:
{
RECT rect;
GetClientRect(hwnd,&rect);
hdc = GetDC(hwnd);
USES_CONVERSION;
CSpEvent event;
while(event.GetFrom(m_cpRecoCtxt)==S_OK)
{
switch(event.eEventId)
{
case SPEI_RECOGNITION:
{
static const WCHAR wszUnrecognized[] = L"<Unrecognized>";
CSpDynamicString dstrText;
//取得消息结果
if(FAILED(event.RecoResult()->GetText(SP_GETWHOLEPHRASE, SP_GETWHOLEPHRASE, TRUE, &dstrText, NULL)))
{
dstrText = wszUnrecognized;
}
BSTR SRout;
dstrText.CopyToBSTR(&SRout);
char * lpszText2 = _com_util::ConvertBSTRToString(SRout);
if(b_Cmd_Grammar)
{
//MessageBoxA(0,lpszText2,"内容",0);
if(strcmp("腾讯QQ",lpszText2)==0)
{
//MessageBox(0,TEXT("计算机"),TEXT("内容"),0);
speak(L"好的");
//打开QQ.exe
ShellExecuteA(NULL,"open","D:\QQ\QQProtect\Bin\QQProtect.exe",0,0,1);
}
if(strcmp("确定",lpszText2)==0)
{
//按下回车键
keybd_event(VK_RETURN,0,0,0);
keybd_event(VK_RETURN,0,KEYEVENTF_KEYUP,0);
}
if(strcmp("音乐",lpszText2)==0)
{
speak(L"好的");
//调用系统程序wmplayer.exe播放音乐
ShellExecuteA(NULL,"open",""C:\Program Files (x86)\Windows Media Player\wmplayer.exe"","C:\Users\KYT\Desktop\123.mp3",0,0);
}
}
}
}
}
break;
}
case WM_PAINT:
hdc = BeginPaint(hwnd,&ps);
EndPaint(hwnd,&ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
}
return DefWindowProc(hwnd,message,wParam,lParam);
}
#pragma comment(lib,"ole32.lib")//CoInitialize CoCreateInstance 需要调用ole32.dll
/*
*语音合成函数，朗读字符串str
*/
int speak(wchar_t *str)
{
ISpVoice * pVoice = NULL;
::CoInitialize(NULL);
//获得ISpVoice接口
long hr = CoCreateInstance(CLSID_SpVoice,NULL,CLSCTX_ALL,IID_ISpVoice,(void **)&pVoice);
hr = pVoice->Speak(str,0,NULL);
pVoice->Release();
pVoice = NULL;
//千万不要忘记
::CoUninitialize();
return TRUE;
}

只有源文件还不行，程序中还用到一个XML格式的语音配置文件cmd.xml。如果是利用编译器调试程序，cmd.xml需要和源代码同目录；发布程序以后，cmd.xml就得放到程序可执行文件所在的目录下了。总之，程序必须访问到cmd.xml文件，方便起见，可以在两个目录下都放一个cmd.xml文件。

配置文件<cmd.xml>

<?xml version="1.0" encoding="utf-8"?>
<GRAMMAR LANGID="804">
<DEFINE>
<ID NAME="CMD" VAL="10"/>
</DEFINE>
<RULE NAME="COMMAND" ID="CMD" TOPLEVEL="ACTIVE">
<L>
<P>腾讯QQ</P>
<P>确定</P>
<P>音乐</P>
</L>
</RULE>
</GRAMMAR>

ShellExecuteA(NULL,"open",""C:\Program Files (x86)\Windows Media Player\wmplayer.exe"","C:\Users\KYT\Desktop\123.mp3",0,0);

语音识别是不是挺有意思的，发挥你的想象，去震精别人吧。

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