Simplified presentation

parent c39c0626
......@@ -16,46 +16,6 @@ We are sounds in the universe
* Jens-Christian Fischer (@jcfischer)
----
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Dragica Kahlina
===============
* Theoretical Physicist Uni Basel
* Lecturer Digital Ideation HSLU
* Sound Artist
@gluggergames
----
Jens-Christian Fischer
======================
* MscIT University Liverpool
* Lecturer Web ZHAW
* Product Manager SWITCHengines
@jcfischer
----
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Agenda
======
* What & Why
* Sound Synthesis
* Networking
* Audience Performance
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......@@ -68,40 +28,30 @@ What & Why
How far can we take the *Web Programming*, *Synthesis* and *Free
Improvisation*
*Feedback* between performer and audience is key to a musical
performance. What happens when we enable (a certain amount of)
*control* by the audience?
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Feedback
========
What can we do with "run of the mill" technology?
=================================================
The Feedback between performer and audience is key to a musical
performance.
Constraints:
------------
What happens when you as the audience really participate?
* No specific network technologies
* No specific networking hardware
* No low level networking software
----
But first
---------
a bit of theory
===============
----
Sound Synthesis
===============
----
* Additive
* Subtractive
* FM (Frequency Modulation)
* AM (Amplitude Modulation)
* Physical Modeling
* Granular Synthesis
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......@@ -118,29 +68,6 @@ Additive
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Harmonics
=========
.. image:: img/harmonics.png
:height: 500px
:align: right
----
Contra
======
* Gets ressource intensive very fast
* Sound is often too clean, to sterile
* Its not easy to find good sounds, without FFT
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Saw Wave
========
......@@ -150,15 +77,6 @@ Saw Wave
----
Basic Flowchart
===============
.. image:: img/atom.svg
:height: 500px
:align: center
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Envelopes
=========
......@@ -171,16 +89,6 @@ Envelopes
----
Combined Flowchart
==================
.. image:: img/env_osc.svg
:height: 450px
:align: right
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Subtractive
===========
......@@ -194,63 +102,19 @@ Subtractive
----
Frequency Modulation
====================
* Modulate frequency inlet with an other oscilator
* 1973 John Chowning
* Multiple oscilators can be arbitraily combined to fm each other
* Lots of possibilities
* Difficult to find a specific sound
----
FM Spectrum
===========
Additional bands appear
.. image:: img/FM.png
:height: 350px
:align: right
----
Yamaha DX7
=========================
* Uses 6 sine oscilators
* In 32 combinations
.. image:: img/DX7.png
:height: 350px
:align: right
----
Amplitude Modulation
====================
* Works similar to FM, but uses amplitude slot
* doesn't have the rich possibilities of FM
----
Physical Modeling
=================
Some other Methods
==================
* Best known is Karplus-Strong
* Uses Delaylines
* Simulates Strings and Flutes, both of which base on sine waves reflected back at the boundary
* Various Oscilators are used Van-der-Poole, Chua or strange attractors like Henon, Lorentz
* Chaotic Phenomena in general
* Frequency Modulation
* Amplitude Modulation
* Physical Modelling
----
Granular Synthesis
==================
* also a physical model
* A physical model of sound
* Denis Gabor 1947 : Acoustical quanta and the theory of hearing
* Based on grains or wave packages
* Analog to photons for light, proposed quanta for sound
......@@ -274,11 +138,20 @@ Both have various parameter that can be changed and influence the timbre.
Heaps of grains
===============
There is seldomly one grain, but mostly lots of grains.
How dense, homogenous, etc. this grain clouds are changes the timbre and the way we perceive the sound.
----
Spectrum
========
.. image:: img/grains_spectrum.png
:height: 200px
:align: right
----
Pioneers of Granular Synthesis
......@@ -314,15 +187,6 @@ Example Program
.. image:: img/csound.png
:height: 600px
----
Why a dinosaur ?
================
* fast and resource friendly
* works without GUI
* already has Granular Synthesis Opcodes
* relatively simple to program
----
......@@ -348,6 +212,19 @@ Commercial
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What can we do with "run of the mill" technology?
=================================================
Constraints:
------------
* No specific network technologies
* No specific networking hardware
* No low level networking software
----
Experimental Setup
==================
......@@ -381,7 +258,6 @@ Overview
.. image:: img/overview.png
----
Server
......@@ -428,8 +304,6 @@ iPad Pro
* Sound via Video-Conference, patched to Conference Hall PA
----
What could possibly go wrong?
......@@ -451,3 +325,28 @@ Audience Participation
Go To http://grains.switch.ch
-----------------------------
----
:data-x: r0
:data-y: r800
Dragica Kahlina
===============
* Theoretical Physicist Uni Basel
* Lecturer Digital Ideation HSLU
* Sound Artist
@gluggergames
----
Jens-Christian Fischer
======================
* MscIT University Liverpool
* Lecturer Web ZHAW
* Product Manager SWITCHengines
@jcfischer
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