Klima

Atmospheric Logic

KLIMA is the first of many experiments that welcomes in the surrounding atmosphere as a fundamental building block for your modular patches. Inspired by traditional logic modules and based on the Bosch BME280 sensor, KLIMA derives random gates by comparing your analog signals to the ambient temperature, humidity, atmospheric pressure and relative altitude. Klima makes a gesture towards moving the environment, its weather and atmosphere away from its position as backdrop or object of representation, to an active agent of music-making.

How it works:

KLIMA takes an incoming signal (up to ±5V) and passes it through a comparator whose threshold is set by the density potentiometer. This parameter sets the probability that you’ll get a logic high (+5V) at the first output. In addition to giving a relatively predictable output related to the original input, the comparator signal is then compared to four independent binary signals to produce corresponding gates when a logic-AND occurs – that is, when both signals are high at the same time. The frequencies of these binary signals are determined by the atmospheric measurements from the sensor as well as the density knob, which is controllable by a unipolar control voltage input (CV, 0-5V). So, as the surrounding environmental conditions change, so too does the frequency of each of these waves and, therefore, the probability of a high gate output. What this ultimately means, is that the same patch will take on different characteristics depending on where you find yourself.

As for the reset input, this feature does exactly what you’d think – it resets the four atmospheric binary signals to give you a bit more control over the random gates KLIMA produces, allowing for loops of organically-flavored syncopation.

https://www.fkmg-circuits.com/devices/p/klima