Exploring the Commodore MOS Technology
Exploring the Commodore MOS Technology 8580R5 Sound Interface Device (SID) using a Behringer BCR2000 control surface.
Filming by 3DMtunes:
https://www.youtube.com/user/3DMtunes
The PC contains a HardSID card which is controlled by a custom piece of software. The Yamaha V50 keyboard is plugged into the PC using MIDI and sends MIDI note on and note off messages. The Behringer BCR2000 control surface is also plugged into the PC using MIDI and sends MIDI controller change (CC) messages. The custom software receives both types of messages and writes SID chip register changes to the HardSID card.
The functions on the BCR2000 knobs and buttons are as follows:
Top row (from left to right)
Filter cutoff frequency
Filter resonance
Filter mode
Volume
Buttons (top row from left to right)
Filter oscillator 1 on/off
Filter oscillator 2 on/off
Filter oscillator 3 on/off
Buttons (second row from left to right)
Oscillator 1 on/off
Oscillator 2 on/off
Oscillator 3 on/off
Second row (Oscillator 1 from left to right)
Coarse tune
Fine tune
Waveform
Pulse width
Attack
Decay
Sustain
Release
Third row (Oscillator 2 from left to right)
Coarse tune
Fine tune
Waveform
Pulse width
Attack
Decay
Sustain
Release
Fourth row (Oscillator 3 from left to right)
Coarse tune
Fine tune
Waveform
Pulse width
Attack
Decay
Sustain
Release

