title: Insert an audio file after another audio file in .net core
body: <p>I have some AudioFiles (.wav) and I want to merge them that first play file1 then file2 and so.
  I tried to use NAudio to do that but i think it dosn't work in .net core 5 (If I'm wrong, please someone explain).</p>
  <p><a href="https://i.stack.imgur.com/aBQIL.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/aBQIL.png" alt="enter image description here" /></a></p>
  <p>and I tried to use <a href="https://www.codeproject.com/Articles/35725/C-WAV-file-class-audio-mixing-and-some-light-audio" rel="nofollow noreferrer">this sample</a>  but it merge file together and all files play Simultaneously. what should i do?</p>