(Credit: Michelle Starr/CNET Australia)
An installation in the Pitt Street Mall consists of person-shaped, LED-filled sculptures that use proximity sensors to sing beautiful music when people pass by.
Called the Infinite Choir, it consists of two rows of abstract, human-shaped sculptures with speakers instead of heads that sing when people walk by. But it's a far cry from the twee Christmas carols: each of the 16 "singers" (eight per row) is fitted with a pre-recorded voice that sings an angelic, wordless phrase.
An ultrasonic proximity sensor in each sculpture will trigger when a person comes close, playing the vocal recording and, if you're visiting at night, a colour-changing display of LEDs beneath a translucent shield. The more people who are interacting with the installation, the more intense the sound and display — encouraging passers-by in the perpetually busy mall to slow down and take a look.
The AU$275,000 installation was commissioned by the City of Sydney and built by Iris and Eness as part of a AU$220,000 three-year contract to provide Sydneysiders and visitors with a "magical Christmas playground".
The Infinite Choir will be in Pitt Street Mall until 25 December. If you're nearby, head over and check it out.