If you think about it, this is a Mechanical Turk approach, just done for free with volunteers not with the financial impetus of MTurk. That's why they've given

If you think about it, this is a Mechanical Turk approach, just done for free with volunteers not with the financial impetus of MTurk. That's why they've given particular attention to the second pass over the data. If you want to read more about it, the GitHub repo and in particular the issues cover a lot of the obvious questions like this. They're here: https://github.com/mozilla/voice-web/issues https://github.com/mozilla/voice-web/issues