the total duration wavesurfer is giving me is wrong

[Johnrobmiller]

I have a audio file that is exactly 6.84 seconds long. I use js to and my OS to confirm that it exactly that duration. However, when I load it into Wavesurfer and call ws.getDuration(), wavesurfer is wrongly reporting that it is 6.81795 seconds long. This was causing a bug in my app that was difficult to troubleshoot.

The duration that wavesurfer is outputting ought to be exactly the same as the actual duration of the audio file.

Note: wavesurfer gets the duration wrong even if it is manually set in the options, as noted here #3656