Originally Posted By LUKEPERIL

You need:

-Max/MSP
-iCube or eCube MIDI box with CV inputs
-piezoelectric microphones or CV motion sensors (it's likely he has something that sends electricity and receives it as well, and I would assume that the sensors are easily found after some research and consultation with your local IMCA-dept at your local University - you probably want to be a member of the CDA)
-tape
-patience and a good sense of which signals you need to filter and focus on

You start up a bunch of Max/MSP input machines to read the voltage changes and calibrate them until they are in an appropriate range. Velocity is likely what you want to map this to, then you want to install filter machines that interpret this into a certain range on your wavetable. The most important thing is what sort of sensors you have and what ranges of frequency give you the most response. If you do it with contact mics you would be able to calibrate for velocity and frequency separately. It's a lot easier than it looks but you need to find the gear first, which is expensive unless you are enrolled in University in an appropriate multi- or inter-media program.

Originally Posted By LUKEPERIL

You need:

-Max/MSP
-iCube or eCube MIDI box with CV inputs
-piezoelectric microphones or CV motion sensors (it's likely he has something that sends electricity and receives it as well, and I would assume that the sensors are easily found after some research and consultation with your local IMCA-dept at your local University - you probably want to be a member of the CDA)
-tape
-patience and a good sense of which signals you need to filter and focus on

You start up a bunch of Max/MSP input machines to read the voltage changes and calibrate them until they are in an appropriate range. Velocity is likely what you want to map this to, then you want to install filter machines that interpret this into a certain range on your wavetable. The most important thing is what sort of sensors you have and what ranges of frequency give you the most response. If you do it with contact mics you would be able to calibrate for velocity and frequency separately. It's a lot easier than it looks but you need to find the gear first, which is expensive unless you are enrolled in University in an appropriate multi- or inter-media program.

Originally Posted By CUTTERHEAD

Originally Posted By lukeperil
You need:

-Max/MSP
-iCube or eCube MIDI box with CV inputs
-piezoelectric microphones or CV motion sensors (it's likely he has something that sends electricity and receives it as well, and I would assume that the sensors are easily found after some research and consultation with your local IMCA-dept at your local University - you probably want to be a member of the CDA)
-tape
-patience and a good sense of which signals you need to filter and focus on

You start up a bunch of Max/MSP input machines to read the voltage changes and calibrate them until they are in an appropriate range. Velocity is likely what you want to map this to, then you want to install filter machines that interpret this into a certain range on your wavetable. The most important thing is what sort of sensors you have and what ranges of frequency give you the most response. If you do it with contact mics you would be able to calibrate for velocity and frequency separately. It's a lot easier than it looks but you need to find the gear first, which is expensive unless you are enrolled in University in an appropriate multi- or inter-media program.

their are cheaper approaches. like wayy cheaper, and u dont need a mba or univeristy bill up yer ass.

i have studies static body currents, shure you could user high tech squid like sensor for brain imagery, but this shit what u see in that vid, can be done with a current analog watchdog to digital,
/w delayed line.

retail very cheap, will cost you a week work, an u output the signals to solidstate relays that
feed you midi keyboard switch, that way you will save on the midi controller from scratch.

i have to admit that making the controller incorporated into a pic you could use the raw feed
of the ADC and use the internal registers to program the delay ; saves you the relays... witch can become costy if you dont know where to get em..

so , wires, adc converter, pic, few .001 pico farad / .1 micro farad caps , and some tiny resistors / diodes so you dont feed currents raw from the wall outlet to your face ; maby isolate with a set of optocoupler.

just in case you dont want to receive the jolts the day one diode/cap decide to leak

or use the midikeyboard powersupply, most of the time they are feed by an isolated 12v /1a not enough
to bake the zits

Originally Posted By CUTTERHEAD

erik, read on how the powerglove worked.

they were long strip of metal, and when the finger bented the resisor changed,

To attack the problem of sensing finger movement, Mattel and AGE engineers first sought cheaper materials than fiber optics and photo resistors. Light sources gave way to conductive properties. They thought they found a solution, Gentile recalls, in using conductive rubber, but the rubber didn't return to its prior shape quickly enough. Finally, they found a conductive ink that was supposed to be used to build flexible circuit boards.
.
The conductive ink, it turned out, didn't work well on circuit boards because its conductive properties changed when it was bent. This detriment to circuit building, however, was exactly what AGE engineers were looking for: An inexpensive way of calculating movement -- two layers of the ink became a sensor.

The PG sensors are sensitive to flex in one direction only. *******>>>>>The principle behind the sensors is fairly simple: one side of the substrate of the sensor is coated with a high resistance ink that increases resistance when stretched.<<<<<****** Over this ink patches of low resistance ink are deposited, such that only small transversal strips of the high resistance ink contribute to the stretch effect. The stretch is effected by bending the sensor; one side of the sensor will stretch (a little bit) whilst the other side will compress (a little bit). Unfortunately the ink is far more sensitive to stretch than to compression, hence the unidirectionality. This non-linear behaviour extends into ca. the first 15 degrees of the sensitive direction. Beyond that the resistance changes linearly with the angle and ranges from ca. 100 kOhm to 500 kOhm. In order to avoid this non-linearity it is advisable to employ some sort of pre-loading of the sensor, i.e. to have the sensor flexed, although the joint is actually straight. The angular range of a sensor is more than enough for unidirectional angle measurement of almost any human joint. For bidirectional joint movements it is necessary to join two PG sensors back to back. The sensor is by no means calibrated, so that each sensor has its own angle vs. resistance relationship.