The comparison would be: A person records audio on the street with their own resources and puts it on the web for others to hear. And no, I have no problem whatsoever with this.
Well, I have.
Although it may be legal, I think it would be gross/rude. Actually I saw once a reportage about a photographer would took picture of people in the subway. He had to make sure people don't find out he was photographing. I wouldn't feel comfortable doing this, personnaly.
Maybe it's legal, maybe it's not, I don't know. Google had some trouble in EU with its Google cars, so there is definitely an issue with capturing "public" data.
There are things beyond law : habits, politeness, and well-behavior. Capturing data in the street, images or sound, is very much controversal, in my opinion.