实现文本到声音的转换(WAVE)

//text_to_wave.CPP
#include <sapi.h>
#include <sphelper.h>
#pragma comment(lib,"ole32.lib")
#pragma comment(lib,"sapi.lib")
int main(int argc, char* argv[])
{
 ISpVoice * pVoice = NULL;
 //COM初始化：
 if (FAILED(::CoInitialize(NULL)))
  return FALSE;
 
 //获取ISpVoice：
 HRESULT hr = CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL,
  IID_ISpVoice, (void **)&pVoice);
 if( SUCCEEDED( hr ) )
 {
  CComPtr<ISpStream>   cpWavStream;
  CComPtr<ISpStreamFormat> cpOldStream;
  CSpStreamFormat OriginalFmt;
  pVoice->GetOutputStream( &cpOldStream );
  OriginalFmt.AssignFormat(cpOldStream);
  
  //绑定文件：
  hr = SPBindToFile( L"D://output.wav",SPFM_CREATE_ALWAYS,
   &cpWavStream,&OriginalFmt.FormatId(),
   OriginalFmt.WaveFormatExPtr() );
  if( SUCCEEDED( hr ) )
  {
   pVoice->SetOutput(cpWavStream,TRUE);
   WCHAR WTX[] = L"<VOICE REQUIRED='NAME=Microsoft Mary'/>text to wave";
   pVoice->Speak(WTX, SPF_IS_XML, NULL);
   pVoice->Release();
   pVoice = NULL;
  }
 }
 //释放COM资源：
 ::CoUninitialize();  
 return TRUE;
}