convert audio file to a byte array in matlab

I want to convert an audio file(.wav/.mp3) to a byte array like in c#. here's my c# code.

            string imageName = Guid.NewGuid().ToString() + ".mp3";
            byte[] file = System.Convert.FromBase64String(Filep);
            File.WriteAllBytes(Server.MapPath("FILE/" + imageName), file);
            return imageName;