The MOS Technology 6581/8580 ‘Sound Interface Device’ chip, aka the ‘SID’, was the sound generator chip used in the Commodore 64 home computer. The SID, by the means of 3 wavetable oscillators, a real analogue multi mode filter, an ADSR and various cross modulation options, provided the soundtrack to a generation of computer gaming.
The Sid Guts takes the legendary SID chip and tailors it into the Eurorack modular environment. By use of a real SID chip, the classic sound is taken in a new direction with the levels of direct and voltage control only a modular system can offer.
Here’s a video introduction to the Sid Guts:
- 1volt per octave control of a ‘core’ SID oscillator 0-5v input (with tunable offset)
- Direct and voltage control of oscillator wave shape selection (Pulse, Triangle, Square, Saw).
- Filter switchable between 4 modes – 12dB/Octave HP , LP , BP & Notch (HP+LP).
- Direct and Voltage control (with offset) of Filter cutoff and Resonance.
- 1 volt per octave control of second SID ‘modulation’ oscillator.
- Direct and voltage control of modulation oscillator ‘type’; ring modulation, sync or none.
- Direct and voltage control of pulse wave pulse width.
- External audio input.
The SID GUTS does not support the following SID features;
- Remaining 3rd oscillator
- Other features include;
See the ALM site for additional details and sound demos.
via Oliver Chesler