CLUG notes (was Re: Last CLUG)

Peter Barker pbarker at
Wed Aug 1 21:03:22 EST 2001

On Wed, 1 Aug 2001, James Ring wrote:

> What was the name of the program where you can connect various sound 
> components together to simulate the output of a particular setup?


Here are the notes I took at the last CLUG. I must say I did _not_ do
either of the talks justice; I was a little preoccupied. Also, I couldn't
find the air-guitar glyph on my keyboard.

Basically, they were audio presentations. Now if I'd thought to take sound

Actually, that's an idea. Perhaps sampling the talks and putting them
CLUG Thursday 25th July
- The Image was Perfected.
- Programming music: Martin Schwenke
 - stuff available on
 - he was recording stuff on 4-track tapes
  - various 4 track tape tricks
 - also playing with Amiga "mod-trackers"
  - cruddy GUI interface
  - decided to code a replacement - in Haskel
   - lots of people bugging him with bad ideas (GUI, C++ etc)
   - wanted to eliminate copying-and-pasting, a common operation in trackers
   - using a keyboard as a drum-machine (sorta)
  - Haskel:
   - functional language
 - HasChorus was written
  - [ kind of need to see the code to understand...  ]
  - includes things like randomisation (so it sounds more natural,
    less computery)
  - tried to use mergesort based on start-time of events
   - out of memeory
   - quicksort is worse
   - bubblesort worked....
    - bsort in haskel is kind of cool....
     - an almost-sorted list with a lazily evaluated language works quite well
 - MusicMix is nice.
  - mix waveforms together (not "DJ" style, vocal track, base track etc etc)

- some more music stuff (generated reptitive music): Simon Burton
 - GUI based...
  - Spiralsynth
   - use a small program to generate midi signals
    - randomly; cycles through beats
    - an evolver to modify what's generated
   - a listener creates waveforms in real time
    - lots of options, envelope modifications (ADSR and V)
    - set octave, shape etc
    - used the fulltick (fltk?) widgets, which are pretty impressive
   - different modular version of it (plugins etc)
    - makes it clearer that you're passing an input through a whole
     series of different filters to get weird and wonderful effects

> James

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