MAT200A 02W
Courses:MAT200A 02W:Report:Feedback in Arts

schedule MAT200A 02W

Report by: Woon Seung Yeo

Feedback in Arts

... concept, classification, history, and examples


definition 1. the return to the input of a part of the output of a machine, system, or process (as for producing changes in an electronic circuit that improve performance or in an automatic control device that provide self-corrective action)
2. a the partial reversion of the effects of a process to its source or to a preceding stage
b the transmission of evaluative or corrective information to the original or controlling source about an action, event, or process; also : the information so transmitted
  - Merriam-Webster's Collegiate Dictionary

1. the return of a portion of the output, or processed portion of the output, of a (usually active) device to the input
2. information returned as a response to an originating source
  - Federal Standard 1037C, Institute for Telecommunication Sciences

flow chart
general concept

control system

signal flow (negative feedback)

points of view

closed-loop vs. open-loop open-loop control offers some advantages

positive vs. negative * If the feedback is regenerative (additive), it is called "positive feedback," which increases gain and distortion, and decreases linearity and stability.
* If the feedback is degenerative (subtractive), it is called "negative feedback," which reduces the gain and distortion, and increases linearity and stability.

positive and negative feedback
biology cartoons

feedback vs. feedforward feedback and feedforward control
feedforward for faster control response
video feedforward

by whom? by machine: temperature control system
by human: driving
between human: conversation

History a brief history of feedback control

1. the preoccupation of the Greeks and Arabs with keeping accurate track of time
2. the Industrial Revolution in Europe
3. the beginning of mass communication and the First and Second World Wars
4. the beginning of the space/computer age.

Engineering applications everywhere!

Feedback in arts more focus on "interaction" ... "participation"

Nam June Paik participation TV
random access
something pacific

Dan Graham opposing mirrors and video monitors on time delay

Paul Garrin white devil
border patrol

Simon Penny sympathetic sentience
petit mal

Golan Levin the alphabet synthesis machine
audiovisual environment suite

Christa Sommerer
& Laurent Mignonneau

a-volve (more...)

Toshio Iwai piano - as image media
resonance of 4
music plays images X images play music
composition on the table

George Legrady sensing/speaking space

Survival Research Lab.

other links ARS electronica - interactive art
webring - experimental interactive arts

Future... larger-scale feedback system using network
application of higher-level control theory