Posts in Category: projects

p/q – rational number decimals as rhythmic pattern.

In this project I am searching for repeating decimal numbers to be used as rhythmic patterns. To do so an algorithm finds a repeating pattern in the result of 1 divided by prime numbers. These patterns are then used as input to a rhythm machine.

Rational numbers are numbers that can be written as a ratio of two integers: e.g.: 1/3. Some rational numbers are decimal numbers either ending after a number of digits: e.g.: 5/4 = 1.25, or repeat e.g.: 1/3 = 0.3333…, 1/37 = 0.027027…, 1/7 = 0.142857142857…

I use prime numbers because it seems that 1 divided by a prime number produces a repeating pattern more often.

This project was first presented at PIFCamp 2024.

Generating rhythms / Knocking the KUbUS:

To generate a rhythm from a pattern of digits the pattern equals the length of one bar where each digit defines the delay to the next trigger-event. A specific BPM then defines the length of these delays and long patterns are split into several bars.

Each trigger contains the value of the digit (0 to 9) and drives one of the 10 solenoids to knock the KUbUS at different spots in the rhythm of the repeating pattern.

The strength of the solenoids slowly fades out as the sequence progresses into insignificance.

[Photo: Katja Goljat]
fraction digits knocking the KUbUS with solenoids
[Photo: Katja Goljat]

Thanks to Stefan Voglsinger who made the performance on the KUbUS possible and recorded the session with several microphones on the metal structure.


1 / 4649 = 0.00021510002151…
Pattern: 0 0 0 2 1 5 1

1 / 73 = 0.0136986301369863…
Pattern: 0 1 3 6 9 8 6 3

1 / 9091 = 0.0001099989
Pattern: 0 0 0 1 0 9 9 9 8 9

1 / 53 = 0.01886792452830188679245283…
Pattern: 0 1 8 8 6 7 9 2 4 5 2 8 3

1 / 3541 = 0.0002824060999717593900028240609997175939…
Pattern: 0 0 0 2 8 2 4 0 6 0 9 9 9 7 1 7 5 9 3 9

1 / 103 = 0.00970873786407766990291262135922330097087378640776699029126213592233…
Pattern: 0 0 9 7 0 8 7 3 7 8 6 4 0 7 7 6 6 9 9 0 2 9 1 2 6 2 1 3 5 9 2 2 3 3

1 / 4013 = 0.00024919013207076999750809867929230002491901320707699975080986792923
Pattern: 0 0 0 2 4 9 1 9 0 1 3 2 0 7 0 7 6 9 9 9 7 5 0 8 0 9 8 6 7 9 2 9 2 3

1 / 71 = 0.0140845070422535211267605633802816901408450704225352112676056338028169…
Pattern: 0 1 4 0 8 4 5 0 7 0 4 2 2 5 3 5 2 1 1 2 6 7 6 0 5 6 3 3 8 0 2 8 1 6 9

1 / 83 = 0.01204819277108433734939759036144578313253…
Pattern: 0 1 2 0 4 8 1 9 2 7 7 1 0 8 4 3 3 7 3 4 9 3 9 7 5 9 0 3 6 1 4 4 5 7 8 3 1 3 2 5 3

1 / 1231 = 0.00081234768480909829406986190089358245329…
Pattern: 0 0 0 8 1 2 3 4 7 6 8 4 8 0 9 0 9 8 2 9 4 0 6 9 8 6 1 9 0 0 8 9 3 5 8 2 4 5 3 2 9

1 / 127 = 0.007874015748031496062992125984251968503937…
Pattern: 0 0 7 8 7 4 0 1 5 7 4 8 0 3 1 4 9 6 0 6 2 9 9 2 1 2 5 9 8 4 2 5 1 9 6 8 5 0 3 9 3 7

1 / 2689 = 0.000371885459278542208999628114540721457791…
Pattern: 0 0 0 3 7 1 8 8 5 4 5 9 2 7 8 5 4 2 2 0 8 9 9 9 6 2 8 1 1 4 5 4 0 7 2 1 4 5 7 7 9 1

1 / 173 = 0.0057803468208092485549132947976878612716763…
Pattern: 0 0 5 7 8 0 3 4 6 8 2 0 8 0 9 2 4 8 5 5 4 9 1 3 2 9 4 7 9 7 6 8 7 8 6 1 2 7 1 6 7 6 3

1 / 89 = 0.01123595505617977528089887640449438202247191…
Pattern: 0 1 1 2 3 5 9 5 5 0 5 6 1 7 9 7 7 5 2 8 0 8 9 8 8 7 6 4 0 4 4 9 4 3 8 2 0 2 2 4 7 1 9 1

1 / 47 = 0.0212765957446808510638297872340425531914893617…
Pattern: 0 2 1 2 7 6 5 9 5 7 4 4 6 8 0 8 5 1 0 6 3 8 2 9 7 8 7 2 3 4 0 4 2 5 5 3 1 9 1 4 8 9 3 6 1 7

1 / 139 = 0.0071942446043165467625899280575539568345323741…
Pattern: 0 0 7 1 9 4 2 4 4 6 0 4 3 1 6 5 4 6 7 6 2 5 8 9 9 2 8 0 5 7 5 5 3 9 5 6 8 3 4 5 3 2 3 7 4 1

1 / 2531 = 0.0003951007506914263137099960489924930857368629…
Pattern: 0 0 0 3 9 5 1 0 0 7 5 0 6 9 1 4 2 6 3 1 3 7 0 9 9 9 6 0 4 8 9 9 2 4 9 3 0 8 5 7 3 6 8 6 2 9

1 / 251 = 0.00398406374501992031872509960159362549800796812749…
Pattern: 0 0 3 9 8 4 0 6 3 7 4 5 0 1 9 9 2 0 3 1 8 7 2 5 0 9 9 6 0 1 5 9 3 6 2 5 4 9 8 0 0 7 9 6 8 1 2 7 4 9

1 / 5051 = 0.00019798059790140566224509998020194020985943377549…
Pattern: 0 0 0 1 9 7 9 8 0 5 9 7 9 0 1 4 0 5 6 6 2 2 4 5 0 9 9 9 8 0 2 0 1 9 4 0 2 0 9 8 5 9 4 3 3 7 7 5 4 9

1 / 613 = 0.001631321370309951060358890701468189233278955954323…
Pattern: 0 0 1 6 3 1 3 2 1 3 7 0 3 0 9 9 5 1 0 6 0 3 5 8 8 9 0 7 0 1 4 6 8 1 8 9 2 3 3 2 7 8 9 5 5 9 5 4 3 2 3

1 / 521 = 0.0019193857965451055662188099808061420345489443378119…
Pattern: 0 0 1 9 1 9 3 8 5 7 9 6 5 4 5 1 0 5 5 6 6 2 1 8 8 0 9 9 8 0 8 0 6 1 4 2 0 3 4 5 4 8 9 4 4 3 3 7 8 1 1 9

urban needle – 48h-neukölln

Exhibiting urban needle together with Ceren Oykut, Ibrahim Quraishi, Johannes Vogl and Kobakant at “Es war einmal in einer unbekannten Zukunft” (curated by Özgür Erkök Moroder, Kristina Kramer) – 48h Neukölln.




umspannwerk_hall_1

(umspannwerk hall, berlin, 2019)




umspannwerk_hall_1

(umspannwerk staircase, berlin, 2019)

urban needle is kindly supported by pepperl+fuchs

Tree-Area-Network

Working on a Tree-Area-Network at dinacon 2018:

At dinacon i was interested in experimenting with a near-field communication device in the wild to send data over a tree, or in the best case to send data from one tree to another tree. Is it possible to send data from one side of the jungle to the other? The jungle as a network. I wanted to tackle this question by starting out using a near-field communication device on a single tree to see if it is possible to send data over a tree at all.

Read the full article here:
https://www.dinacon.org/2018/09/30/tree-area-network-tan-a-private-network-for-trees-and-humans/

Also read about the near-field intra-body communication device here:
https://ingorandolf.info/building-a-near-field-intra-body-communication-device/

urban needle – spektrum-berlin

Exhibiting urban needle together with Aravinth Panchadcharam, So Kanno and Thomas O’Reilly at HUMAN ♥ ROBOT – spektrum-berlin.




spektrum_berlin_1

(spektrum-berlin, berlin, 2015)

urban needle is kindly supported by pepperl+fuchs

movie’s average image

In his book Hiroshi Sugimoto writes about his photographic series “Theaters”:
“I am a habitual self-interlocutor. One evening while taking photographs at the American Museum of Natural History I had a near-hallucinatory vision. My internal question-and-answer session leading up to this vision went something like this: “Suppose you shoot a whole movie in a single frame?” The answer: “You get a shining screen.” Immediately I began experimenting in order to realize this vision. One afternoon I walked into a cheap cinema in the East Village with a large-format camera. As soon as the movie started, I fixed the shutter at a wide-open aperture. When the movie finished two hours later, I clicked the shutter closed. That evening I developed the film, and my vision exploded before my eyes.”

Hiroshi Sugimoto - Cabot street cinema - Massachusetts - 1978
Hiroshi Sugimoto – Cabot Street Cinema – Massachusetts – 1978

While his photos are a great series about movie theaters photographed between 1975 and 2001, he is missing a point. To get a shining screen when doing long exposure photography in cinemas is due to the fact of a “correct” exposure-time setting for the theater itself. While focusing on documenting cinema-halls he looses the information on the cinema screens. The screens are overexposed and therefore “shining”. If the film-sensitivity and aperture would have been set according to the movies content the screens would not have been overexposed and shining, but would contain all the frames of the projected movie.

I used a digital method combining all frames for cover-images of strata-series in 2006. At that time i was unaware of Hiroshi Sugimoto’s “Theater” project. Just after using the algorithm again on movies in 2014 i remembered seeing Sugimoto’s photographs and found his work. The next step would be to research the films Sugimoto shot when creating his photos and recover the “forgotten images of Hiroshi Sugimoto”.

cover-Icover-IIcover-III
strata series I-III cover images, 2006 – 2009

Here are some of the images as a random selection calculated in 2014:

Sergei_Eisenstein-Battleship_Potemkin-1925
Sergei Eisenstein: Battleship Potemkin, 1925

Alfred_Hitchcock-The_Birds-1963
Alfred Hitchcock: TheBirds, 1963

Ingmar_Bergman-Persona-1966
Ingmar Bergman: Persona, 1966

James_Cameron-Avatar-2009
James Cameron: Avatar, 2009

urban needle – new recordings

urban needle scans rooms and urban spaces in an automated process, transforming the shape of the room into sound.
like a record needle, it plays back a room producing room-based noise. the room is the reel.

urban needle is kindly supported by pepperl+fuchs


brandenburger_tor_1

(brandenburger tor, berlin, 2015)

potsdamer_platz_1

(potsdamer platz, berlin, 2015)

in the pipe

(in the pipe, berlin, 2015)

u1

(under u1, berlin, 2015)

karl marx allee

(karl marx allee, berlin, 2015)

urban needle

urban needle scans rooms and urban spaces in an automated process, transforming the shape of the room into sound.
like a record needle, it plays back a room producing room-based noise. the room is the reel.

urban needle is kindly supported by pepperl+fuchs


studiofairy_1

(studio fairy, berlin, 2015)

studiofairy_1

(staircase, studio fairy, berlin, 2015)

studiofairy_1

(cellar, studio fairy, berlin, 2015)

studiofairy_1

(bornholmer bridge, berlin, 2015)

throw your phone – 2014

proposing a ritual for new years

throw your smartphone to generate a random object. a 3d-printer turns the digital data into objects. it is like pouring lead, but very modern.
interpret the resulting object to foresee your upcoming year.

some results from the new years party in 2014:

IMG_1778 IMG_1779
IMG_1780 IMG_1782
IMG_1787 IMG_1791
IMG_1792 IMG_1796

SoR-I

sonification of rooms (SoR) is a series of projects to translate rooms into sound. starting point was a concert of vinyl terror and horror in 2013 imagining a record needle turning in the room, instead of having a rotating record. how would that sound?

a first version was presented at the schmiede in hallein 2014. a point laser was scanning a room in an automated process playing back the measurement, creating a slowly changing noise.

SoR-I was kindly supported by micro-epsilon

“urban needle” uses the same principle for sonifying urban spaces.

SOR-1_1
(SoR-I, schmiede hallein, 2014)