work
URHO & Urban Horns
VIDEO: Eröffnungskonzert Helsinki Festival (2013)
Description
Listen up! There's more to the city than noise pollution. This musical ode to Helsinki kicks off with the German
Christof Schläger's urban horns. Custom-built for Helsinki, they will announce the start of the festival at
Kauppatori Market. Icebreaker Urho takes part in the horn concert as well. At the same time, in another location,
a fleet of hot air balloons will take to the skies above the city. Luke Jerram's Sky Orchestra invites everyone
to hear a concert from above. The hot air balloon orchestra will glide across the city skies and greet the
gathered crowds at Kauppatori.
Images
Soundmachines
more info
|
Copper-Horns (2010)
PDF
A horn group consists of 64 horns, small,
modified ship’s horns. 32 horns have copper bells whose sound color is reminiscent of trumpets.
Each wind machine is powered by a portable air compressor of the type used in road construction
with a minimum pressure of 7 bar or 100 psi (pounds per square inch) and an air flow capacity
of 1.000 to 2000 CFM (cubic feet per minute), These units have an operating dBA as low as 64 db
which significantly reduces the incidence of unwanted noise. The ship’s horns are tuned diatonically
and are controlled by a computer.
Materials: steel, copper
Weight:
Dimensions: length 220cm [=7.2 feet] x width 80cm [=2.6 feet] x height 140cm [=4.6 feet]
|
more info
|
EPX-Horns
(2007)
PDF
A horn group consists of 64 horns,
small, modified ship’s horns. 32 horns have glass fiber and synthetic resin bells whose
sound color is reminiscent of English horns. The ship’s horns are tuned diatonically
and are controlled by a computer.
Materials: steel, copper, glass fiber synthetic
Weight: 150 kg
Dimensions: height 400cm [=13.1 ft.] x width 200cm [=6.6 ft.]
|
more info
|
D-Pfeifen (2010)
PDF
There are two groups, consisting of sixteen
rectangular pipes, each of which are served by a valve-block. The compressed air is released
through a nozzle into the open pipe. The overtones can be achieved by subtle variations in
air pressure and direction. A compressor serves as a wind machine.
Materials: rectangular pipes, nozzles, valve island
Weight: 30 kg
Dimensions: height 220cm [=7.2 ft.] x width 40cm [=1.3 ft.]
|
more info
|
Hammerwerk
(2014)
PDF
Hammerwerk consists of four air drums
woth eight pneumatically powered hammers for which the stretched membranes of kevlar
-a synthetic fiber of high tensile strength- over a circular mounting with an internal
diameter of 1.50 meters. Attached to each drum are sixteen hammers each of which are
fitted with a pneumatically operated rotational joint the heads of which covered with
various materials, strike the membrane. The flaming orange color of the membranes with
their small insectile hammer arms gives Hammerwork, especially when in movement, the
appearance of a delicate, organic being.
Material: steel sheets, pneumatic swivel drives, valve islands, control
Weight: 55 kg
Dimensions: height 220cm [=7.2 ft] x width 150cm [=4.9 ft]
|
more info
|
M-Pipes
(2010)
PDF
Specially built nozzles enhance the
blow noises of the air stream, the tone appears rough. Drainpipe tubing is mounted to
sixteen valves, the controllable air stream generates strong sounds.
Material: steel, pipes, 8 gas valves, 300 mBar blower
Weight: 145 kg
Dimensions: height 200cm [=6.6 ft] x length 200cm [=6.6 ft] x width 350cm [=11.5 ft]
|
|