Active Essays

• Download the Squeak plugin from http://www.squeakland.org then click on the plugin link below; or
• Download the project itself (Save As on the project links below), then open as a project from the Squeak file list.

Notes:

• If you get an error about "Key not found" when you open up the projects via the plugin, don't worry about. Just close the error notifier. It's a bug that'll be cleared up RSN. (I've already tested with the alpha of the plugin, and that works fine.)
• You should "Escape from Browser" for most of these, in order to get more screen real estate. If you don't see the orange tab at the bottom of the screen with the "Escape from Browser" button on it, blick anywhere in the plugin outside of the book itself. You'll get the World menu. Choose "appearance" then on the Appearance submenu, "full screen on." You can get back to the Browser from the orange tab "Return to Browser" button, or via Appearance "full screen off"

• Squeak's Music Tools: Plugin Project
  Index words: RecordingControlsMorph, WaveEditor, FFT, AudioExplorer, MIDI Player, PianoRollMorph, EnvelopeEditor

• How Sound Works (Acoustics and Psychoacoustics): Plugin Project
  Index words: waveform, amplitude, frequency, cycle, Hertz, intensity, decibel, basilar membrane, octaves, Fourier transform, FFT.

• Basics of Synthesizing a Sound: Plugin Project
  Index words: sampling rate, calculation rate, SoundBuffer, SoundBufferGenerator, frequency, amplitude

• What makes an instrument an instrument?: Plugin Project
  Index words: timbre, Helmholtz, amplitude envelope, spectral envelope, formants, Audio Explorer

• Creating a more flexible sound synthesizer: Plugin Project
  Index words: unit generator, envelope generator, signal flowchart, ring modulation, sidebands, signal-to-noise ratio (SNR).

• Frequency Modulation (FM) synthesis: Plugin Project
  Index words: frequency modulation (FM) synthesis, Chowning, sidebands, envelope, modulation ratio, index of modulation, modulation frequency, carrier frequency

• Subtractive synthesis: Plugin Project
  Index words: subtractive synthesis, filters, lowpass, highpass, bandpass, bandreject, center frequency, roll-off, noise generation.

• Sampling synthesizers: Plugin Project
  Index words: samples, pitch shifting, degradation, looped samples, sampled instruments, patches

• MIDI: Plugin Project
  Index words: MIDI, General MIDI, devices, controllers, MIDI protocol, piano roll

Links to this Page

• Syllabus last edited on 1 November 2001 at 2:37 pm by greenlee.cc.gatech.edu
• Assignments last edited on 5 December 2001 at 11:28 am by w205d15.lawn.gatech.edu