SOUNDINGS 1968 ROBERT RAUSCHENBERG

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SOUNDINGS (1968)ROBERT RAUSCHENBERG
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(No Transcript)
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ENGINEERS Billy Kluver L.J. Robinson Fred
Waldhauer Cecil Coker Per Biorn Ralph Flynn
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DIMENSIONS 7'10" x 36' x 4'6"
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SPECIFICATIONS APPEARANCE (3) rows (or
layers) of Plexiglas suspended on aluminum
frame.The front layer partially
mirrorized Behind are (2) layers of Plexiglas
with images of a wooden chair of various sizes
and shapes and from different angles screen
printed on them.
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SPECIFICATIONS LIGHTING Lights behind the
sheets of Plexiglas would vary in intensity based
upon the amount of sound in the room and
backlight the images so they would be visible
through the mirror. (36) Spotlights mounted at
top of Plexiglas (pitch controlled light
intensity)
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SPECIFICATIONS AUDIO AND INTERACTIVITY (4)
Microphones connect to (4) pre-amps and (4)
power-amps---sound would be divided into four
frequency bands, so that a high-pitched voice or
sound would trigger a different set of lights
from a low-pitched voice or sound that is,
children would trigger different lights from
adults standing beside them.
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SPECIFICATIONS AUDIO AND INTERACTIVITY (continue
d) This was accomplished by mixing four audio
signals from the four hanging microphones,
compressing them to better match the dynamic
range of the light bulbs (to provide a smooth
gradation between the lowest and highest
illumination levels of the bulbs otherwise they
would just turn on and off). The composite
sound signal is then split into four frequency
bands corresponding to the pitch of different
human voices. The signal from each frequency
band is rectified and fed into a SRC circuit that
controls the brightness of a set of nine 150-watt
bulbs.
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CREDITS Frame/stands built by Per Biorn Audio
components installed and configured by Per Biorn
Screen printing by RR Four band control system
based on the pitch of viewers speech (to modulate
light sources in accordance with audio
levels/pitch) which implemented SCR circuits
(Silicon-controlled Rectifier) by Cecil Coker and
Robby Robinson Integration of interactive
components by Fred Waldhauer and RR Synergy and
Advising by Billy Kluver
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PROVENANCE Commissioned by the Stedelijk Museum
in Amsterdam for RR restrospective Originally
assembled and displayed at on February 23, 1968
at the Stedelijk Museum in Amsterdam Bought
by Peter Ludwig in 1976 and is currently at the
Museum Ludwig in Cologne (displayed in
non-working condition)