Answers.Body: <p>If the files have no content then it's enough to key on size. A totally "empty" WAV file will have just a header and will almost certainly be less than 200 bytes. So it's probably enough to delete any files smaller than that. I would sort the folder by increasing size. You will probably see a sharp change from very low values to a series of much larger files. Bulk delete above that point (shift-select, delete).</p>
  
  <p>If the files have some length but contain only silence, you need a more rigorous test. But from your question it doesn't sound like that's the case.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-09-08T13:58:11.630Z
Answers.LastActivityDate: 2015-09-08T13:58:11.630Z
Answers.UserDisplayName: Jim Mack
Body: <p>There are some wav files that are empty (though their size is not 0 bytes). Their duration is also 00:00.</p>
  
  <p>When you open these files, nothing happens even if you hit the play button again and again.</p>
  
  <p>Is there a way to filter all such files from a collection of (say 10000) .wav files?</p>
  
  <p>Equivalently, could you help me in filtering all .wav files of duration less than or equal to 2 seconds from a huge collection of files?</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-09-10T09:47:26.307Z
Comments.Text: Welcome Snowbell :) If Jim does not solve your issue, might be a good idea to provide some test files to play with... Anyway, enjoy video.se!
Comments.UserDisplayName: p2or
Tags: <audio-recording>
Title: how to detect empty wav files
UserDisplayName: Upendra01
ThreadText: # how to detect empty wav files
  
  (Asked by: username_0 on 2015-09-08)
  
  There are some wav files that are empty (though their size is not 0 bytes). Their duration is also 00:00.
  
  When you open these files, nothing happens even if you hit the play button again and again.
  
  Is there a way to filter all such files from a collection of (say 10000) .wav files?
  
  Equivalently, could you help me in filtering all .wav files of duration less than or equal to 2 seconds from a huge collection of files?
  
  **Tags:** audio-recording
  
  > **Comments:**
  > **username_1**: Welcome Snowbell :) If Jim does not solve your issue, might be a good idea to provide some test files to play with... Anyway, enjoy video.se!  
  
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  ## 1 answers
  
  ### Answer by username_2 on 2015-09-08. Score: 2
  
  If the files have no content then it's enough to key on size. A totally "empty" WAV file will have just a header and will almost certainly be less than 200 bytes. So it's probably enough to delete any files smaller than that. I would sort the folder by increasing size. You will probably see a sharp change from very low values to a series of much larger files. Bulk delete above that point (shift-select, delete).
  
  If the files have some length but contain only silence, you need a more rigorous test. But from your question it doesn't sound like that's the case.
  
  
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