[sdiy] common acronyms?

[Josh Landau]

I'll take a stab at it....

VCO - Voltage Controlled Oscillator.  An oscillator with oscillation 
frequency controlled by voltage from something else.

LFO - Low Frequency Oscillator.  An oscillator generally designed to work 
at low frequencies (<200 Hz is a common definition).  Many do work at 
higher frequencies.  May or may not be voltage controlled.

VCF - Voltage Controlled Filter.  A filter with parameters controlled by 
voltage (frequency is the most common control parameter, followed by Q or 
"resonance".)

VCA - Voltage controlled amplifier, AKA 2-quadrant multiplier.  Basically a 
voltage-controlled gain.

OTA - Operational Transconductance Amplifier.  Like an op-amp, but not.  I 
can't explain this one, other than to say check out some of the lister's 
OTA analyses.

BBD - Bit Bucket Delay.  An analog delay-line technique.  Harry's worst 
enemy.   There are other names for these, but none of them acceptable in 
polite company.  =)

ADSR - Attack-Decay-Sustain-Release (see also DADSR or HADSR).  A 
four-stage envelope generator.

HADSR/DADSR - Hold-ADSR or Delay-ADSR.  Envelope generators with a control 
for delay of start of envelope.

EG - Envelope generator.  Produces a voltage output that follows a 
predefined "envelope" shape.

uP - Microprocessor.

uC - Microcontroller.

That's all I can think of offhand - feel free to ask if you need a definition.

Josh

"The truth may be out there, but lies are inside your head."

                                 - Terry Pratchett