Schlesisches Tor Recordings
Various field recordings and device recordings at Berlin near U-Bahn station Schlesisches Tor.
Walking around site device recording and ambient recording.
Device recording.
Device recording.
Listening to Light
Listening to light using a two powered photocells as ‘microphones’. Recordings of multiple sources of light: Hallway lamp, Bathroom fluorescent fixture, Light of power bar, and Chandelier.
Video:
We are not dangerous but in danger!
We are not dangerous but in danger! Nous ne sommes pas dangereux, mais en danger! Wir sind nicht gefahrlich, aber im gefahr!
Graffiti near Schlesisches Tor.
Berlin – U12 – Schlesisches Tor
Location of site along the U12 UBahn track near Schlesisches Tor.
View to the north.
View to the west.
Under track view to the west.
View of track structure.
View at U Schlesisches Tor.
View of track at night.
View of track turning north at night.
View looking south of track turning north at night.
View of track turning north at night.
View looking south of track turning north at night.
Walking below the U12 track:
La Gaîté Lyrique – Trackers by Rafael Lozeno-Hemmer
Trackers by Rafael Lozeno-Hemmer at La Gaîté Lyrique, Paris. The installation uses surveillance technology to map and record users of the space. Link
Light projections produce shadows on wall which are processed and determine the a radio’s tuning and volume.
Spotlights move across the avoiding the user.
Momentary wall projection of user’s movements shown in plan.
Video of installations:
Lighting Sensing Array
An array of light sensing photocells each tuned to a different tone. As light projects through opening (inversely as shadows move across) it will sequentially activate each photocell depending on the attributes of the opening (or shadow). An audio composition will be created by manipulation of light patterns and changes in light intensity. A circuit will be needed to produce and control each of the tones.
Opening located at 45 degree from Y (in line with sensors).
Opening located at 30 degree from Y.
Opening located at 60 degree from Y.
Graph of opening glissandi from Metastasis, Xenakis, 1953. Field recording using two photocell to listening to light
Video of recording:
1 – Recording of tree bark – the very textured and rough surface produces a small audio signal consisting mostly of static. 2 – Walking across grass – another rough and textured surface which creates a bit more variation in sound due to shadows created by trees above. 3 – Recording of window – produces a more complex sound due to the transparent and reflective surface. 4 – Recording of car headlights and hood – produces an even more complex sound due to the transparent, reflective, and contoured headlights and hood.
This recording method requires that the two photocells be in motion in close proximity to a surface. If these conditions are not met the sound produced is minimal to nonexistent in natural light and constant in artificial light (depending on the frequency of the light source). Changing the material through which the artificial light travels causes minor changes to the sounds volume, while the frequency remains constant.
The limitations above (proximity to surface and required motion of the device) point to a device that is either hand held or put into motion be some other means. This may not be the most suitable way to map a site.
(more to follow)
kylejanzen 