Create video with background music using VSTO and c#

See more:

C#

video

VSTO

PowerPoint

Hi,

I am creating an automation for creating power point presentation using VSTO and C#. I have create a slide show (with background music). Now I have to export this slide show to a video file. I have successfully create video, but it doesn't have the sound effect.

I write code like this:

void createPPT()
{
       using PowerPoint = Microsoft.Office.Interop.PowerPoint;


       PowerPoint.Application objApp;
       PowerPoint.Presentations objPresSet;
       PowerPoint._Presentation objPres;
       PowerPoint.Slides objSlides;
       PowerPoint._Slide objSlide;
       PowerPoint.TextRange objTextRng;
       PowerPoint.Shapes objShapes;
       PowerPoint.Shape objShape;
       PowerPoint.SlideShowWindows objSSWs;
       PowerPoint.SlideShowTransition objSST;
       PowerPoint.SlideShowSettings objSSS;
       PowerPoint.SlideRange objSldRng;



        objApp = new PowerPoint.Application();
        objPresSet = objApp.Presentations;
        objPres = objPresSet.Open(strStrTemplate, MsoTriState.msoFalse,
               MsoTriState.msoTrue, MsoTriState.msoFalse);
        objSlides = objPres.Slides;

        for (int i = 0; i < SlideList.Count; ++i)
        {
        objSlide = objSlides.Add(i + 1, PowerPoint.PpSlideLayout.ppLayoutBlank);
        objSlide.Shapes.AddPicture(StrImagePath, MsoTriState.msoFalse, MsoTriState.msoTrue, 5, 5, 950, 530);


            objSldRng = objSlides.Range(i + 1);
            objSST = objSldRng.SlideShowTransition;
            objSST.AdvanceOnTime = MsoTriState.msoTrue;
            objSST.AdvanceTime = 5;
         }

            objSldRng = objSlides.Range(1);
            objSST.SoundEffect.ImportFromFile(@"D:\Songs\BGM1.wav");
            objSST.LoopSoundUntilNext = MsoTriState.msoTrue;

            //objSST.SoundEffect.Play();

            //Run Slide show - this will have audio effect
            objSSS.Run();


            //Save video file --this will not have the background music
            objPres.CreateVideo(strSavePath, true, 0,640, 60, 100);

}

Please help me to create video with background music.
Also, This code work with only .wav files. Can I use other sound formates also??

Thanks in advance..