How do i give path to soundplayer

Question

I have a web form in which i have requirement to browse an audio file using file upload control,and then a button to upload and play this file to folder on the server,from there i get the path to it soundplayer,
My problem is that when i pass path in this way its work fine

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SoundPlayer playthewavfile = new SoundPlayer(@"G:\backup\LTM.CTP.WEBFORM\LTM.CTP.WEBFORM\Audio\q1.wav"); 

but i want to give the path like this

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FileUpload1.PostedFile.SaveAs(Server.MapPath("~/Forms/Upload/" + fileName));                 string PATH = System.IO.Path.Combine(Server.MapPath("~/Forms/Upload"), FileUpload5.PostedFile.FileName); SoundPlayer playthewavfile = new SoundPlayer(PATH);  playthewavfile.Play(); 

here its give exception of invalid path?