New York, N.Y. (2013) – As part of New York City’s annual Summer Streets celebration, artist Rafael Lozano-Hemmer took over the Park Avenue Tunnel with his large-scale interactive installation, Voice Tunnel. The installation consisted of 300 theatrical spotlights mounted along the two facing tunnel walls, producing columns of light that followed the natural curve of the tunnel to just barely met in the center of the ceiling. A special intercom in the middle of the 1,400 foot long tunnel rounded out the installation. Members of the public were invited to speak into the intercom. Every speech was recorded and played back in a loop, recycling old recordings with new ones so that only 75 voices could be heard through any of 150 loudspeakers that were mounted along the tunnel. As more and more people added their voices,  the lights flashed in synchronicity like morse code, moving from one end of the tunnel to the other.