The fast-pwm is a simple square wave synth with variable pulse width, but it is also super fast. I never intended these for public use, which explains the cryptic interface. I originally designed all of my machines to use less than 3% cpu on a p233. Buzz crashes constantly on my athlon (I can't even get the audio card config menu to come up), so I probably will stop developing machines for Buzz and move on to another better supported platform.

first: what are these funny names?

for example
fast-pwm-e is a:
fast pulse width modulation synth - envelope

and the ENVELOPE means that it has an envelope control

Let me explain all the parameters, perhaps that might help you understand how it works:

ADSR: This is your envelope. It is designated by the -E in the synth name.
ATTACK
DECAY
SUSTAIN
RELEASE

PWM Section:
Fine Tune - Well, that's kinda obvious as well
Pulse WIdth - This is the width ratio of the waveform. (Known as Wave Duty to some folk...)

GOOD LUCK!
pooplog