Frameworks
for Interactive Sound
Fall 2003 [archive]
Tuesdays, 6:30-9:00 PM |
syllabus
[archive] |
home |
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1.
September 2 |
Introductions/Overview - scope
and purpose of the class; coursework and assignments; who are you?
Lecture: Fundamentals
of acoustic, electronic and digital audio; Different time scales.
Tool overview and selection: Max/MSP, pd, cSound, portAudio.
Listening:
Steve Reich, Pendulum Music. Version 1 by Sonic Youth, from Goodbye
20th Century; Version 2 by Ensemble Avantgarde.
Reading: How
Digital Audio Works, from the MSP Manual; Time Scales of
Music, Roads, Microsound.
Assignment 1:
Select a tool and set up a personal sketch process, including a
place online to post your work; email me to notify me of what you
choose and the location of your sketchbook.
Assignment 2:
Careful listening. Step 1 - listen far. Listen first to sounds near
you, then proceed outward to the edge of your perception, attempting
to hear sounds from as far away as possible. Write down your observations.
Step 2 - listen close. Find a repeatable sound, like footsteps,
a keystroke on a keyboard, etc. Listen as closely as possible to
this sound, attempting to perceive the sound not as a singular sonic
"icon" but as a complex phenomenon with many components.
Write two short paragraphs describing your observations.
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Class notes:
Many other potentially interesting tools
were mentioned in class: SuperCollider
looks good, and there are a lot of resources on the SC page. Cecilia
is an editor for cSound. NAG
uses the Gnutella
protocol to create audio collage. SoundHack
is free.
People are studying the effects of infrasound.
See also here
and here,
including info about infrasonic weapons.
Here's Steve Reich's website. |
2.
September 9 |
Waves
Demonstration:
Reich's Pendulum Music
Lecture: Pendulums
and springs, basic oscillators, unit generators. Remember highschool
trig?
Demos
from class
Listening:
The Reich-John McEntire connection. Selections by Michael Sharon:
Bridge, Amon
Tobin, from Permutation; and Building Steam with a Grain
of Salt, DJ
Shadow, from Endtroducing.
Reading: Chapter
One: Musical Sound Perception, and Chapter Two: Acoustic
Principles, Hopkin (handout); Music
as a Gradual Process, Reich (online)
Assignment 1:
Find the basic generators in your tool. In Max/MSP, this includes
(but is not limited to!) the cycle~ and phasor~ objects; in cSound
these are oscil, etc. Explore - slow them down, speed them up, take
them to infra- and ultrasonic realms. Watch numbers change; understand
phase, radians, etc. The purpose here is to start interfacing with
your tool; sketching proper will begin next week. Post a representative
file (patch, score, etc) showing your work, but don't worry about
generating sound this week.
Assignment 2:
Make one of the simple instruments - ballon-mounted bar gong or
fork chime - to bring to class next week. People may work in groups.
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The art
and culture network seems to have a well-cross-referenced site
with many artists.
Microsounds on Studio
360.
A hyperinfrasonic
sound was observed travelling through outer space by the Chandra
Observatory. Closer to home, a huge electric
organ is being installed in Trinity Church. The elctronic organ
in Four Organs is a farfisa.
Video
(courtesy of Michael) of Pendulum Music from class are here:
start | middle | slowing down (offline) |
3.
September 16 |
Combining Waves
Demonstration:
Listening to the simple instruments from the Hopkin reading.
Lecture: Making
waves and adding them together; Fundamentals, partials and harmonics;
Pitches and scales; interpolation.
Max demos from class. I've
included text versions of patches to facilitate opening across platforms
and maybe even Pd. Also, here's some cSound examples
from the cSound Book.
Video: Magic
Music of the Telharmonium, Reynold Weidenaar
Listening:
Selections from Eric Socolofsky: Greenways Trajectory,
Squarepusher,
from Go Plastic, and Ah One, Two, Three, Cut,
The
Invizibl Skratch Piklz, from The Shiggar Fraggar Show!
Reading: Chapter
Three: Tuning Systems and Pitch Layouts, Hopkin (handout);
Additive Synthesis, Roads (handout).
Assignment:
Create 5 to 10 different short (.1 to 10 seconds long) sounds by
adding sine waves together. Post your sounds in mp3 format in your
sketchbook, along with text clearly explaining the following: 1)
the number of waves used; 2) the pitch relationships (ratios) between
the waves; and 3) how the amplitude of waves is changed over time.
We will listen to work in the next class. Extra credit: model your
additive synthesis work directly from the simple instruments created
last week.
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4.
September 23 |
Intonation
Lecture: More
on pitches and scales; Just intonation, equal temperament; Partch
and Dreyblatt.
Max demo from class.
Listening:
Selections from Olivier: The Rite of Spring, Igor
Stravinsky, conducted by Pierre Boulez; and Kasena,
from Ghana:
Music of the Northern Tribes.
Reading: The
Language of Ratios and Basic Monophonic Concepts,
from Genesis of a Music, Harry Partch, 1949 (handout); OR Beginings,
Theories, Histories, Arnold Dreyblatt, 1998 (online).
Assignment:
Building on the previous two weeks, create 5 new, longer (still
under 10 seconds) soundfiles. You may literally cut and paste the
sounds you created last week for this assignment, or generate new
tones using additive synthesis. Referencing the theories of intonation
that we are reading about, as well as the concept of process music,
create structured snippets of sound. Consider employing one type
of oscillation to trigger another. Think vertically (harmony) and/or
horizontally (scale/melody). Consider the upper and lower reaches
of the audible frequency spectrum. Each sample you create should
be exactly the same length.
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Arnold Dreyblatt's main site is
here.
Brian Eno on generative
music.
A page
with many java applets illustrating concepts in tuning.
Information on the Bolhen-Pierce
scale, which is not based on the octave.
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5.
September 30 |
Modulating Waves
Lecture: Ring,
Amplitude, and Frequency Modulation (RM, AM, FM) synthesis.
Max demo of RM, AM and FM
synthesis.
Listening:
Selections from Manlio: Rainsquall, by Richard
Buckner, from bloomed.
Reading: Modulation
Synthesis, pp. 213 - 236, from the Computer Music Tutorial,
Curtis Roads (handout); Timeline of electronic musical instruments,
Roads (from Microsounds) and obsolete.com
(handout, online).
Assignment:
Explore AM, RM, and FM synthesis. Build your own patches so that
you really grasp the methods involved. Be creative in finding your
carriers and modulators; for example, these could be the output
of one of your (or your classmates') previous patches. Then create
the following (10 sounds total), and post them as mp3s in your sketchbook:
- 2 sounds under .25 seconds using AM or RM synthesis, and 2 using
FM synthesis.
- 2 sounds between .25 and 2 second using AM or RM synthesis,
and 2 using FM synthesis.
- 1 sound over 5 seconds long with AM or RM synthesis, and 1 using
FM synthesis.
Include notes about the methods used.
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Listen
to these samples from Karlheinz
Stockhausen mentioned in the Roads reading:
from Kontakte
(1960)
from Hymnen
(1967)
Stockhausen made the news when he reportedly
equated September 11th a
great work of art.
Some information on Jaques
Dudon, who uses light to make sound.
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6.
October 7 |
Instruments
Lecture: Instrument
classification and methods of transduction.
Video: Maywadenki,
courtesy of Uriko.
Listening: Selections from Marc
(postponed to next week).
Reading: Browse
through the physics
website.
Midterm Assignment:
Research one of the instruments listed in Road's timeline or obsolete.com
from last week's reading. (You may also research something not listed
if it is in a similar category.) Find material covering both the
particulars of the object's creation - who made it, and where, when,
why, etc. - and how it functions. Prepare a 10-minute presentation
about the device to give to the class. Second, create a sonic work
that either 1) recreates the sound of the device or some aspect
of it, through a software reconstruction of its mechanism, or 2)
is evocative of the sound of the device. Put another way, your sound
work could be a rational experiment that attempts to improve your
understanding of the object you are researching, or an intuitive
composition that communicates the tone, mood, or essence of the
object. Note: If you choose the second (evocative) method, you must
use samples from your classmate's previous work for the class (although
you need not use them exclusively). Integrate the sound work with
your presentation.
You may work alone or in groups.
No Theremins.
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Information of the
Sachs-Hornbostel system of instrument classification here
and here.
A repository of information about the physics
of musical instruments.
Amplified
music from the congo (more music here.)
Images of a Stroh
Violin.
Our
radio
show wiki is now onlne.
Abelton makes Live,
the real-time audio processing environment mentioned in class.
Morgan Barnard from my pcomp class sent me this awesome
link that includes information on generating audio from aluminum
and saltwater.
Raymond Scott invented
many electronic instruments in his Manhattan lab.
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7.
October 14 |
Physical modeling overview
Lecture: Physical
models of instruments
Max demo of synthesis from
first principles.
Video: Theremin
- an Electronic Odyssey
Listening:
Selections from Marc (whales) and Zhenya (space man)
Reading: None
Assignment:
Work on the midterm.
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The best theremins,
and tons of other cool high-tech analog gear, are made by Bob
Moog.
There are also theremin kits from PAiA. |
8.October
21 |
Midterm presentations
Assignment:
Search for noise. Take any short sound (in .wav or .aif format),
and open it in a text editor such as BBEdit. You will see more or
less garbage. Leaving aside the first hundred characters or so (which
contain header information about the file) edit the file in any
way you see fit. Cut and paste sections from one place to another.
Rearrange lines. Reverse or sort sections of text. Munge it with
a perl script. Paste in an email. After each edit, save the file
as a new .aif (or whatever) file and - after turning down the
volume - audition it. Repeat: turn down the volume.
The edited file is almost always much louder than the source. Some
edits will have more interesting results than others. Some edits
may have no result, or make your file unplayable. Continue incrementally
until the source material is unrecognizable. Repeat until you have
five noisy chaotic messes to play in class next week. Enjoy.
Examples:
bass sound: original, modified1,
modified2
random sines: orignial, modified
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9.October
28 |
Noise
Lecture: Degrees
and kinds of noise.
Examples
and patches from class.
Listening: Selections from Matt
and Joon (postponed to 10.4)
Reading: The
Work of Reproduction in the Mechanical Aging of an Art: Listening
to Noise, Stan Link, Computer Music Journal, 2001 (handout).
Assignment:
Continue the search for noise. Find more equations or systems that
generate noise. Implement chaotic equations. Find sources of noise
in nature. Prepare five examples to play in class next week; document
how they were generated.
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Some information on
interative
chaotic equations.
Here are some midi
chaos sonifications, including information on the Henon Map. |
10.
November 4 |
Filtering and Subtractive Synthesis
Listening:
Selections from Christine,
Matt
and Joon.
Video: Le
Chant Harmonique
Assignment:
Next week we will implement and realize Alvin Lucier's "I Am
Sitting in a Room" in class. As a class, organize and prepare
for this. Read the score. By Friday, email me with a list of equipment
you would like to have at your disposal. Come to class prepared
to implement a patch that can realize the piece in real time. Bonus
for multilingual students: translate the text of the score into
another language - the version we implement will have as many languages
as possible in it.
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The "I Am Sitting
In a Room" score is reprinted here.
A description
of "I Am Sitting in a Room" implemented in Pd, with useful
pointers.
There is a class
wiki for discussing how to stage "I am Sitting." |
11.
November 11 |
Filtering continued
Listening:
Selections from Koichi.
In class:
Execute "I am Sitting in a Room"
Assignment:
Post final manifestos to the wiki.
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There is also a class
wiki for posting
manifestos about the final. |
12. November 18 |
Sound as particles
(delayed by fire)
Lecture: Granular synthesis.
Example
patches
Listening: Selections from Phil.
In class: Finish "I am
Sitting in a Room."
Reading: "On
the Perception of Meter" from Vijay Iyer's dissertation,
Microstructures of Feel, Macrostructures of Sound: Embodied
Cognition in West African and African-American Musics (online)
or
A Spatial Theory of Rythmic
Resolution, Neil McLachlan, Leonardo
Music Journal, Vol. 10, 2000, pp. 61 - 67
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Nobuyasu
Sakonda's site, with granular patches.
Vijay Iyer's site.
The full text of the Leonardo Jounal, and all others carried by
the library, are available online from any computer on the NYU network,
from the library's e-journal
site. |
13.
November 25 |
Final Review
Listening:
Selections from Taku, Daniel and Phil |
Here is our recording of "I
am Sitting in a Room." |
14. December 2 |
Final Presentations |
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