GUEST ARTIST #7: SIEDL/CAO (Austria/Vietnam)

NOT AS IT IS, BUT AS WE ARE

Multi-channel sound installation.

Monday, May 11, 2026, 18:00 (opening & artist talk)
@ SP•CE Listening Gallery [Billrothstraße 6/2, 1190 Vienna]
Further opening hours: May 12 to 15, 2026, 18:00-21:00

Part of the AUDIO GHOSTS Guest Artists Series.

Utilising an array of 16 rotating pairs of Aeolian flutes, this installation facilitates a complex intersection of physical acoustic phenomena and psychoacoustic perception. Each pair of flutes is tuned slightly apart, producing acoustic beating through the physical interference of close frequencies. Also at play are the intermodulation products (combination tones) generated by the non-linear physiology of the inner ear and frequency modulation derived from the Doppler effect as the flutes rotate. By juxtaposing measurable acoustic phenomena with auditory illusion, the installation serves as a critical inquiry into the divergence between objective physical stimuli and subjective human perception, a distinction of increasing relevance in a contemporary landscape where the boundaries between the real and the unreal are increasingly obscured.

Website SIEDL/CAO: https://siedlcao.com