geert lovink on Sun, 12 Dec 1999 00:30:47 +0100 (CET) |
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nettime-nl: mens/amstrong: optreden/performance in the office building of the lost boys |
From: [email protected] Radboud Mens & Dan Armstrong STAIRWELL/TRAPPENHUIS enclosed harmonics Tuesday, December 14 1999 20:00 Lost Boys Interactive Herengracht 410 1001 AB Amsterdam The Netherlands "Stairwell/Trappenhuis" is part 2 in an ongoing series of installations and performances in Amsterdam on experience of and "relationship with" sound and spaces. This performance consists of generated guitar loops and minimal effects played to an audience located on the stairwell. Radboud Mens and Dan Armstrong herewith perform a short performance at the public space within the offices of Lost Boys in downtown Amsterdam. The concept behind the performance has crafted for the unique space created by the recent re-design of the stairway in the Lost Boys offices, and its interaction with the old building and the open spaces in which it has been constructed. We believe that this space has a unique ability to warp induced sounds and the stairwell allows visitors to change their position in relation to the sound source in ways that dramatically changes the nature of the performance. The character of the space creates "sound bands" in which the visitor can either remain stationary and experience the sounds - or travel between these bands to hear different reinforced harmonics, standing soundwaves, and rhythms. SOUND AND DISTANCE: The series entitled "SOUND AND DISTANCE" hopes to create experiences during which the visitor can utilise space, time, and a physical relationship to sound objects in new and un-replicable ways. ROOM FREQUENCY RESPONSE USING BONELLO CRITERIA: Using x to calculate the resonant modes of a rectangular room. Room dimensions are in metric units and the modes will be listed in sequence. Mode numbers have significant digits and these numbers are not incremented as modes are calculated. The first digit represents the order of the mode for the X dimension, the second for the Y dimension and so on (A1 means that the mode is a first order, or fundamental, mode for the given dimension which implies that it is louder than a second order mode.). Utilising: X = 05 metres Y = 03 metres Z = 20 metres as a round room size estimation, the resonant modes of the stairwell become: Mode: 000 0 Hz Mode: 001 8.6 Hz Mode: 002 17.2 Hz Mode: 003 25.8 Hz Mode: 010 57.3333333333333 Hz Mode: 011 57.9747454596492 Hz Mode: 012 59.8577573177538 Hz Mode: 013 62.8709083051224 Hz Mode: 020 114.666666666667 Hz Mode: 021 114.988714422088 Hz Mode: 022 115.949490919298 Hz Mode: 023 117.533333333333 Hz Mode: 030 172 Hz Mode: 031 172.214865792707 Hz Mode: 032 172.857860683279 Hz Mode: 033 173.924236378947 Hz Mode: 100 34.4 Hz Mode: 101 35.4587083803119 Hz Mode: 102 38.4603692129964 Hz Mode: 103 43 Hz Mode: 110 66.8615817275594 Hz Mode: 111 67.4123958268145 Hz Mode: 112 69.0384755850758 Hz Mode: 113 71.6666666666667 Hz Mode: 120 119.715514635508 Hz Mode: 121 120.024016115294 Hz Mode: 122 120.944799162446 Hz Mode: 123 122.464053682885 Hz Mode: 130 175.406271267592 Hz Mode: 131 175.616969567294 Hz Mode: 132 176.247553174505 Hz Mode: 133 177.293541901559 Hz Mode: 200 68.8 Hz Mode: 201 69.3354166353675 Hz Mode: 202 70.9174167606238 Hz Mode: 203 73.4784322097308 Hz Mode: 210 89.557529617063 Hz Mode: 211 89.9695010051246 Hz Mode: 212 91.1942493313647 Hz Mode: 213 93.1997377201841 Hz Mode: 220 133.723163455119 Hz Mode: 221 133.999419567565 Hz Mode: 222 134.824791653629 Hz Mode: 223 136.189296365186 Hz Mode: 230 185.249669365427 Hz Mode: 231 185.449184414491 Hz Mode: 232 186.046445813942 Hz Mode: 233 187.037643270011 Hz Mode: 300 103.2 Hz Mode: 301 103.557713377614 Hz Mode: 302 104.623515521129 Hz Mode: 303 106.376125140936 Hz Mode: 310 118.056558949984 Hz Mode: 311 118.369384179825 Hz Mode: 312 119.302938400993 Hz Mode: 313 120.842836407919 Hz Mode: 320 154.268222406445 Hz Mode: 321 154.507748816829 Hz Mode: 322 155.224110383807 Hz Mode: 323 156.410755526736 Hz Mode: 330 200.584745182678 Hz Mode: 331 200.769021514775 Hz Mode: 332 201.320838464378 Hz Mode: 333 202.237187480443 Hz For more information, see http://radiantslab.com. Try the working frequency response calculator utilising Bonello criteria at http://radiantslab.com/luddite/bonello.html. This tool is largely useful in estimating what low frequency resonance (0-500Hz) in the Lost Boys space (or other venues). The equation extrudes the geometry of the space to determine what order harmonic the frequency induced will be in the space. First order harmonics are the loudest and 2,3, and 4 are increasingly more quiet. The formula also provides a guide although the real experience in this stairwell is that the step (depending on how they are constructed) will cause the 2 and 3 order modes to be different. For more information and mails regarding further events, email [email protected]. Radboud Mens [email protected] personal email [email protected] www http://radiantslab.com/rat ph +31 (0)625508761 ~ fax +31 (0)206239281 earbitten radio every wednesday night on Radio100 24:00 till 03:00 CET ~ http://desk.nl/~radio100/webcast.ram -- * Verspreid via nettime-nl. Commercieel gebruik niet toegestaan zonder * toestemming. <nettime-nl> is een gesloten en gemodereerde mailinglist * over net-kritiek. Meer info: [email protected] met 'info nettime-nl' in de * tekst v/d email. Archief: http://www.factory.org/nettime-nl. Contact: * [email protected]. Int. editie: http://www.desk.nl/~nettime.