Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
sound_boards:symbiotic_synth [2019/07/12 04:16]
admin
sound_boards:symbiotic_synth [2020/06/11 22:13] (current)
Line 3: Line 3:
  
 The Symbiotic Synth is a low voltage oscillator that is powered as well as controlled by the human body, thus an audible bio-feedback can be made possible.\\ The Symbiotic Synth is a low voltage oscillator that is powered as well as controlled by the human body, thus an audible bio-feedback can be made possible.\\
-It was invented and designed by [[http://​wolfgang-spahn.de/​doku.php|Wolfgang Spahn]] ​for the workshop [[http://​shared-habitats.eu/​i-machine-and-energy-harvesting/​|I,​ Machine, and Energy Harvesting]] by Mindaugas Gapševičius and Wolfgang Spahn as part of the exhibition [[http://​shared-habitats.eu/​|Shared Habitats]] in MO Museum, Vilnius, Lithuania in May 2019.\\+It was invented and designed by [[http://​wolfgang-spahn.de/​doku.php|Wolfgang Spahn]] ​and was first presented at the workshop [[http://​shared-habitats.eu/​i-machine-and-energy-harvesting/​|I,​ Machine, and Energy Harvesting]] by Mindaugas Gapševičius and Wolfgang Spahn as part of the exhibition [[http://​shared-habitats.eu/​|Shared Habitats]] in MO Museum, Vilnius, Lithuania in May 2019.\\
  
 <​html>​ <​html>​
Line 9: Line 9:
 </​html>​ </​html>​
  
-The Symbiotic Synth uses as the only power source the body temperature and drives with that an electric oscillator. The difference of the body to the environment temperature can generates some tiny little ​bit of electric power - the so called [[https://​en.wikipedia.org/​wiki/​Thermoelectric_effect|Seebeck Effect]]. With some tricks and High Tech in form of the Small Energy Harvesting Chip:  [[https://​www.analog.com/​media/​en/​technical-documentation/​data-sheets/​LTC3108.pdf|LTC 3108]] one can convert that small amount of energy into some decent voltage and an [[https://​www.electronics-tutorials.ws/​waveforms/​astable.html|astable multivibrator]] circuit can be powered with that. It will oscillate in a audible range depending on the setting of the potentiometer. And because the headphone are actually part of the oscillation circuit one can listen to the sound, too.\\ +The Symbiotic Synth uses as the only power source the body temperature and drives with that an electric oscillator. The difference of the body to the environment temperature can generates some tiny little ​bits of electric power - the so called [[https://​en.wikipedia.org/​wiki/​Thermoelectric_effect|Seebeck Effect]]. With some tricks and high tech in form of the Small Energy Harvesting Chip: [[https://​www.analog.com/​media/​en/​technical-documentation/​data-sheets/​LTC3108.pdf|LTC 3108]] one can convert that small amount of energy into some decent voltage and an [[https://​www.electronics-tutorials.ws/​waveforms/​astable.html|astable multivibrator]] circuit can be powered with that. It will oscillate in a audible range depending on the setting of the potentiometer. And because the headphone are actually part of the oscillation circuit one can listen to the sound without extra amplification, too.\\ 
-In attaching some light, pressure, skin and temperature depending resistors to the circuit one can have variations of the sound based on the human body and its functions. The generated sound will change depending on breath, heart beat, skin resistance and body temperature.\\+In attaching some sensors, like: light, pressure, skin and temperature depending resistors to the circuit one can have variations of the sound based on the human body and its functions. The generated sound will change depending on breath, heart beat, skin resistance and body temperature.\\
  
 {{:​sound_boards:​symbiotic_synth_01.jpg?​600|}}\\ {{:​sound_boards:​symbiotic_synth_01.jpg?​600|}}\\
  
-With all that both is possible to power and to modulate a synthesizer with the own human body. And because the generated sound will stimulate the body function, too, the Symbiotic Synth can be called an self-sufficient audio biofeedback device.\\+With all that both is possibleto power and to modulate a synthesizer with the own human body. And because the generated sound will - like sound always do - stimulate the body function, too, the Symbiotic Synth can be called an self-sufficient audio biofeedback device.\\ 
 + 
 +The Symbiotic Synth is part and parcel of the installation [[https://​wolfgang-spahn.de/​doku.php/​installation:​thermal-acoustic-seance|Thermal-Acoustic-Seance]] by Wolfgang Spahn and was shown at the [[https://​karachibiennale.org.pk/​kb19-artistsandvenues/​|Alliance Francaise Karachi at the Karachi Biennale 2019]], Pakistan, with support of the [[https://​www.goethe.de/​ins/​pk/​en/​index.html|Goethe Institute Pakistan]]\\
  
 ==== Schematic ==== ==== Schematic ====
Line 22: Line 24:
 ==== Paper PCB ==== ==== Paper PCB ====
  
-These are the [[about:​introduction|Paper-PCB]] designs. ​Here one can read how to make a real board out of it: [[about:​manual|Manual]]. ​For the SMD soldering one can find some help here: [[about:​smd-soldering|SMD Solder Manual]].\\+Here one can find the [[about:​introduction|Paper PCB]] designs. ​How to transform them in a real board is described here: [[about:​manual|Paper PCB Manual]]. ​And for the SMD soldering one can find some help here: [[about:​smd-soldering|SMD Solder Manual]].\\ 
 +... and don't forget the cut!\\
  
 {{:​sound_boards:​symbiotic_synth_02.jpg?​400|}}\\ {{:​sound_boards:​symbiotic_synth_02.jpg?​400|}}\\
 {{:​sound_boards:​symbiotic_synth_02.zip?​400|}}\\ {{:​sound_boards:​symbiotic_synth_02.zip?​400|}}\\
 +
 +----
 +==== Manual ====
 +Attach a Peltier elemnet were it's marked on the board - mind the polarity!\\
 +When first used the switch should be on LED, and after a little while the LED should light up und the Seebeck effect is generating some power.\\
 +One can use that power now to make sound, one has to set the switch on OSC and with the headphones connected one can here some sound - the jumper has to be set.\\
 +With the potentiometer one can change now the frequency. If one wants change the sound by using some sensors they have to be connected on the pins instead of the jumper. The best effect will be achieved if one uses sensors with a resistence around 100 KOhm.\\
 +
 +The pin on the board with the marking STO can be used for an extra energy storage. A big capacitor should be connected on STO and ground (GND).\\
 +
 +But be aware the Symbiotic Synth works with the temperature different from the body to the environment. If that difference is not big enough the Synth will not work. The best results were by temperatures around 25C and lower.\\
  
 ---- ----
Line 98: Line 112:
 ==== Acknowledgment ==== ==== Acknowledgment ====
  
-Thanks to by Mindaugas Gapševičius for all the help and support.\\+Thanks to Dave Jones of the [[https://​www.eevblog.com/​|EEVblog]] for his great video about Small Energy Harvesting [[https://​www.youtube.com/​watch?​v=9aSPopIcKLQ]].\\ 
 +A great help was the [[https://​www.we-online.com/​web/​de/​electronic_components/​news_pbs/​news_archiv_2012_pbs/​News_Detail_Standard_Parts_2012_23746.php|Energy Harvesting Kit]] by [[https://​www.wedirekt.com/​en/​|Würth Electronics]].\\ 
 + 
 +Thanks to Mindaugas Gapševičius for the support.\\
  
 Supported by [[https://​www.norden.org/​en/​funding-opportunities/​nordic-culture-point-culture-and-art-programme|Nordic Culture Point]].\\ Supported by [[https://​www.norden.org/​en/​funding-opportunities/​nordic-culture-point-culture-and-art-programme|Nordic Culture Point]].\\
Line 104: Line 121:
  
 ---- ----
-All contents are Copyright © 2019 by Wolfgang Spahn. ​All rights reserved+==== License ==== 
 + 
 +This Symbiotic Synth was designed ​by **Wolfgang Spahn** 2019.\\ 
 +It is licensed under a [[http://​creativecommons.org/​licenses/​by-nc-sa/​4.0/"​|Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License]]. 
 + 
 +<​html>​ 
 +<a rel="​license"​ href="​http://​creativecommons.org/​licenses/​by-nc-sa/​4.0/"><​img alt="​Creative Commons License"​ style="​border-width:​0"​ src="​https://​i.creativecommons.org/​l/​by-nc-sa/​4.0/88x31.png" /></​a>​  
 +</​html>​ 
 ---- ----
 +