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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
Stan Lunetta's Moosack Machine (1970)
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RF



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PostPosted: Tue May 19, 2009 5:18 am    Post subject: Stan Lunetta's Moosack Machine (1970)
Subject description: Description of circuits and some pics
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I was sent a couple pics of a document describing Stan Lunetta's moosack machine - circa 1970.

I have attached those to this post.
It's a bit tough to read - so here is the text.

Quote:

Stanley Lunetta
Moosack Machine
March 7 - April 19, 1970

The moosack machine is a sculpture that produces, mixes and processes electronic sound. In the present version, the machine routes these sounds to four speakers placed in four corners of a room, and also to an audio transducer contained in the sculpture in the center of the room.

The moosack machine has two parts. The first, completely contained in the sculpture, consists of four variable oscilators, two power regulators, and a large number of input sensors. The input sensors detect changes in light, temperature, wind direction ands well as movements of people around the sculpture. These components are assembled as a sculpture, using the resistors, capacitors wires, etc. for their appearance as well as for their various electronic functions.

The second part of the moosack machine contains four mixers, the fixed oscillator/frequency divider unit, the relay box, the digital logic system, plus filters, phase shifters and reverb/tape-echo units.

The variable oscillators, controlled by the input sensors produce constantly changing output signals; e.g., continuously variable sweeps and/or disjunct leaps in either direction, amplitude, and time-event changes, and off/on functions. The output of each variable oscillator is mixed with one of the outputs from the fixed ocillator/frequency-divider unit and is sent to the digital logic system.

The digital logic system consists of a 16-bit digital counter/decoder, modified to have four inputs and eight outputs. Each output will function only when the inputs are in specific states. For example, output X1 will function only when the outputs of oscillators A, B and D are positive, and oscillator C is negative. Further, the four fixed oscillator/frequency-divider outputs (A,B,C,D) must also be positive-positive-negative-positive, if the output is to function. The fixed oscillator/frequency-divider unit moves from positive to negative at a very slow rate, changing its state one to three times per minute. Thus, the output of the digital unit consists of the relationships between variable and fixed oscillators.

Through the relay box, the four outputs of the digital unit have control over the on/off functions of the electric motors in the sculpture, turning the "cut-out wheels" and affecting the light-sensitive input sensors. There are also photo-cells that override the X outputs, turning off the relays.

The four Y outputs of the digital unit are used as audio outputs and are, of course, square waves. Thses outputs are either filtered, phase shifted, sent throuogh reverb/tape-echo units or frequency divided. The resulting sounds are then heard through the four amplifier/speaker channels. The fifth channel, a transducer in the sculpture itself, is taken from one of the mixers before the signal is sent to the digital logic system. Ideally. the moosack machine should be activated in the morning and allowed to play through the afternoon. The only human control over the moosack machine is the on/off switch. The recording in this issue was not edited or "composed" in any way. The moosack machine was allowed to play for 23 minutes. The record contains activities from the third to the eighteenth minute.

P. 46



Here's a link to hear the recording mentioned in the last paragraph.
http://ubu.artmob.ca/sound/source/Lunetta-Stanley_Moosack.mp3

bruce


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PostPosted: Tue May 19, 2009 7:03 am    Post subject: Reply with quote  Mark this post and the followings unread

That is way cool, Bruce, way cool! Thanks for sharing.

Les

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amplex



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PostPosted: Tue May 19, 2009 12:58 pm    Post subject: Reply with quote  Mark this post and the followings unread

Inspiring!!! I would love to work on an updated group art project along these lines!!! How about an audio/visual mimicry robot .. A few ideas:

mic input, loud sounds trigger a 'sampler' to record and mimic the voice/sound it hears for a small amount of time (or longer depending on amplitude), this would be a cool project itself, like a lunettaish sound machine triggering active/passive effects (retrigger, dist, bitcrush, stretch, pitchup/down, bend, stereodelay, etc) a la dblue glitch/effectrix, etc on environment sounds. or even just lunettaish synthesis to ringmodulate with the triggered sound would be much easier.. hrmm this is actually plausable for me to attempt.. <scratches>

a few cameras onboard so when it sees big movement, the 'face' spins slowly towards that object and proceeds with mimicry, this would take a bit of pic programming and some major robotics work

a visual mimicry.. filtered ldrs or cameras detect light (like camera flashes, movement, face detection, etc) and replay them via led patterns, strobe bulbs, blacklights etc, probably pic programming etc..

just some crazy ideas, would cost a pretty penny and would take so LONG to build... it would turn quite a few heads tho =] imagine the thing mobile walking around a festival/gathering imitating the crowd though.. id pay to see that!!! id be willing to work on the first idea for the voice activated sampler/mangler but that could take awhile.. =P

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PostPosted: Tue May 19, 2009 2:34 pm    Post subject: Reply with quote  Mark this post and the followings unread

Amplex, see this thread:

http://www.electro-music.com/forum/topic-34389.html

for a neat little project we are just starting to get into. It's an LED peace sign with microphone response. It's small and simple, but so far has been a lot of fun imagineering...

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Adam-V



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PostPosted: Tue May 19, 2009 3:59 pm    Post subject: Reply with quote  Mark this post and the followings unread

Brilliant! Thanks for posting this bruce.

Cheers,
Adam-V

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