Find the BPM of a piece of music by repeatedly hitting things.

Demo: http://deviouschimp.co.uk/misc/taptempo

<script src="taptempo.js" type="text/javascript"></script>
<script type="text/javascript">
  var taptempo = new Taptempo(options);

  $(window).keydown(function(e) {
    if (e.keyCode == 32) { // space
      console.log(taptempo.tap());
    }
  });
</script>

The options variable should be an object with any, all or none of the following attributes.

• reset_callback default = null Taptempo will reset after reset_time milliseconds of not being tapped. This function will then be called.
• reset_time default = 3000 Number of milliseconds between tapping and Taptempo resetting.
• return_ms default = false If true returns average time between taps in milliseconds. Otherwise returns in beats per minute.