title: How to create an impulse train .wav with sox or other linux command line tools
body: <p>I need a .wav file with 44100Hz sample rate, that contains a positive 1-sample impulse every 2 seconds, repeated for about 1 minute.  </p>
  
  <p>I've not yet found an elegant way to do this with linux command line tools, like sox, ffmpeg,... but am working on it.  </p>