Loudest wins.

This is how democracy works in the provincial legislature in Ontario, Canada:

In a voice vote, the Speaker of the legislature would determine the outcome based on the volume of the ‘Yeas’ and ‘Nays’ yelled by the members.

Sort of reminds me of the audience applause meter on old game shows. That, by the way, is just how seriously the provincial government took the vote on same-sex marriage today.