Would likely help with the whole 'sound attracting x kind of post-apocalyptic monsters/raiders' thing, at least a little, too.
Come to think of it, that's been done (some French indie award winner dealt pretty heavily with work & family reintegration of the risen.) The genre is thoroughly tapped.
Any idea what that film was? I must see it.
When I'm walking and a bicyclist passes me, I generally don't hear them coming until they're past. Likewise when I'm bicycling around a pedestrian, they don't hear me unless I deliberately make noise.
I do hear pedestrians.