The 6581 Sound Interface Device (SID) is a single-chip, 3-voice electronic music synthesizer/sound effects generator compatible with the 65XX and similar microprocessor families.
SID provides wide-range, high resolution control of pitch (frequency), tone color (harmonic content), and dynamics (volume). Specialized control circuitry minimizes software overhead, facilitating use in arcade/home video games and low-cost musical instruments.
FEATURES
o 3 TONE OSCILLATORS
Range: 0-4 kHz
o 4 WAVEFORMS PER OSCILLATOR
Triangle, Sawtooth,
Variable Pulse, Noise, various Combinations
o 3 AMPLITUDE MODULATORS
Range: 48 dB
o 3 ENVELOPE GENERATORS
Exponential response
Attack Rate: 2 ms-8 s
Decay Rate: 6 ms-24 s
Sustain Level: 0-peak volume
Release Rate: 6 ms-24 s
o OSCILLATOR SYNCHRONIZATION ( "Hard-sync" )
o RING MODULATION ( as a product of an oscillator being a 50% square and an other one being a triangle )
o PROGRAMMABLE FILTER ( Analog State Variable )
Cutoff range: 30 Hz-12 kHz
12 dB/octave Rolloff
Low pass, Bandpass,
High pass, Notch outputs
Variable Resonance
o MASTER VOLUME CONTROL
o 2 A/D POT INTERFACES
o RANDOM NUMBER/MODULATION GENERATOR
o EXTERNAL AUDIO INPUT, routable thru the filter
Paula, from the Amiga 500 Commodore computer. If i'm the father of chiptune music, she's definitely the mother of MOD music.
Gosh, i'm all about music ! Just search the web a little bit and you'll find thousands of tunes that i can play for you :) Dozens of thousands of songs have been written with me ! No kidding ...
On the Edge: the Spectacular Rise and Fall of Commodore.
Bob Yannes (my dad) & Al Charpentier.
In fact, i have hundreds of heroes : all the musicians that use me for their art !