Project:
whispering to birds
by Belmer
Negrillo & Luther
Thie
»
Project Description
» Demonstration
» Output Box
Home "Whispering to Birds"
Input Box The input box concept began by thinking about alternative pressures and ways to transmit a signal poetically. How light and delicate can we make this input? What is conjured in our minds by soft sweeping of a leaf on a surface? What kind of surprising output could be associated with the soft input? We settled on birdsounds as output and decided that "whispering" relayed the softness concept we were trying to convey. The input
box design process involved a great deal of exploration of the
materials--two different microphone types--and behaviors. We first
started with a condenser microphone and an amplifier circuit that
had to be boosted using a transistor in order to get sufficient
levels. There was a problem with high fluctuation in levels, so
we tried using a piezo microphone. After many hours of scratching
on several types of membrane and replacing the amplifier with
an integrated circuit, we went back to the condenser microphone
and got rid of the speaker that was causing an irritable high-pitched
feedback loop. |
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Circuit Diagram
The
Inbox uses a condenser microphone as vibrational input sensor and an
LM386N-3 amplifier chip.
Source Code
(BasicX-24
Code)
ZIP
file with project and the modules