All week long we've been playing this sound, and asking you to guess what exactly it is and where exactly in the Bay Area we recorded it.
This auditory guessing game is part of Audiograph, a crowd-sourced collaborative radio project mapping the sonic signature of each of the Bay Area’s nine counties. By using the sounds of voices, nature, industry, and music, Audiograph tells the story of where you live, and the people who live there with you. Every Thursday we reveal the origins of that week's sound on Crosscurrents and here in weekly blog posts.
Listen above for the full answer...
In the meantime, is there a sound from your life that should be featured on Audiograph? Call at 415-264-7106 and tell us about the sound of where you live.
This story originally aired Jan. 23, 2014. That week's winner was Chris Cartwright.