title: Delay audio for a few seconds at the start of audio files (using ffmpeg)
body: <p>I have been trying to get lots of wav files delayed by 2 seconds at the start using ffmpeg. And so far, even though I have read the manual, I was not able to get it working. Here is my command:</p>
  
  <pre><code>for %%A in (*.wav) do (
  ffmpeg -i "%%A" -itsoffset 00:00:02 "%%~NA"1.wav )
  </code></pre>
  
  <p>And nothing is being changed. Files are simply getting copied. I also tried the same with mp3 files. I also tried mkv and avi (to make sure it was not a container writing issue), but it gives the same result also.</p>
  
  <p>Command is same <a href="http://ffmpeg.org/ffmpeg.html" rel="nofollow noreferrer">here</a> and <a href="http://howto-pages.org/ffmpeg" rel="nofollow noreferrer">here</a>, but it does not work. Please, help.</p>