Oberheim OB-1 Synopsis

Voice architecture is dual oscillator subtractive with noise (i.e. VCO1+VCO2+noise->VCF->VCA).

eBay Description

Key Features

1. Aftertouch: no
2. Architecture Class: subtractive
3. Audio IO: ?
4. Audio Source: Oscillator waveforms are variable saw or pulse
5. Communication Interface: CV/gate
6. Effects: no
7. EG: Dedicated filter and amp ADSR (1 level, 3 rate). EG could also modulate VCO2
8. Expansion: None
9. Filter: resonant 2 or 4 pole low pass
10. Form Factor: 37 keys
11. Key Scaling: VCF
12. LFO: Routed to filter and/or VCO2. Waveforms are sine, square or S/H
13. Memory:
• Multi Memory: no
• Patch Memory: 8
• PCM Memory: N/A
• Sample Memory: N/A
• Sequencer Memory: N/A
14. Multitimbral: no
15. Pedal Inputs: ?
16. Performance Control: Portamento and pitch bend
17. Polyphony: 1
18. Power: AC
19. Released: 1978
20. Sequencer: no
21. Signal Class: analog
22. Velocity: no

Further Information

• Subtractive synthesis
• http://wikipedia.org/wiki/Subtractive_synthesis
• Analog synthesizer
• http://wikipedia.org/wiki/Analog_synthesizer
• Parts:
• http://syntaur.com/oberheim_ob.html

References

see Oberheim Gallery