More Chicken Heads and Quad Sync!
Posted: Wed Feb 05, 2020 11:55 pm
Again with the chicken head knobs (I love 'em) and Martin's Sync Oscs. With this one, up to four oscillators can be sync'd at once and at different pitches for some very complex waveforms (but without the complexity of a full four-osc synth).
Based primarily on the obscure (I love 'em) synth, the Teisco 110F (made by Kawai), with features added from their 100F and the SX-400. The quad sync bit was inspired by a pretty unique (AFAIK) feature of the SX-400 (a single-osc poly) which had a mode where rather than it's four 'internal' oscillators merely allowing four-note polyphony, could be mono with all four osc set to different pitches, over a several octave range. So I gave this function to VCO II of the 110F-based emulation, so each key-down can sound five different pitches (four of them with the same waveform; the fifth one can be different). Where this really becomes monster is when sync is engaged and all four of VCO II's outputs are at different pitches - crazy! None of the Teiscos had sync for some reason!
16
Another pretty unique 110F feature was the eight-band Filter Bank, which could be either a multi band-pass or peak filter - something usually only seen in modulars.
Only thing really borrowed from the 100F was the very handy envelope 'preset' modes - ADR, AD and AR, which I added to the 110F's ADSRs.
Thanks to modules borrowed from Spogg projects (again !!), I was able to give this both mono and poly Portamento and Glissando.
The 4-pole low pass can select one of three 'flavours' - Spogg's Moog, a double SVF or Martin's Complex low pass. Three quite different resonance characteristics.
The 110F didn't have any wheels, but in their place three bipolar pressure pads - one applied vibrato when the top was pressed and LFO mod to the filter when the bottom was pressed. The second one opened or closed the filter and the third one raised or lowered one or both VCO pitches. I've adapted all that to be controlled by either p-wheel or mod-wheel, aftertouch or footpedal. When mod-wheel is assigned to filter and pitches, one can select normal or bipolar operation (with small dead zone at center), which is similar to the bipolar pads.
Based primarily on the obscure (I love 'em) synth, the Teisco 110F (made by Kawai), with features added from their 100F and the SX-400. The quad sync bit was inspired by a pretty unique (AFAIK) feature of the SX-400 (a single-osc poly) which had a mode where rather than it's four 'internal' oscillators merely allowing four-note polyphony, could be mono with all four osc set to different pitches, over a several octave range. So I gave this function to VCO II of the 110F-based emulation, so each key-down can sound five different pitches (four of them with the same waveform; the fifth one can be different). Where this really becomes monster is when sync is engaged and all four of VCO II's outputs are at different pitches - crazy! None of the Teiscos had sync for some reason!
16
Another pretty unique 110F feature was the eight-band Filter Bank, which could be either a multi band-pass or peak filter - something usually only seen in modulars.
Only thing really borrowed from the 100F was the very handy envelope 'preset' modes - ADR, AD and AR, which I added to the 110F's ADSRs.
Thanks to modules borrowed from Spogg projects (again !!), I was able to give this both mono and poly Portamento and Glissando.
The 4-pole low pass can select one of three 'flavours' - Spogg's Moog, a double SVF or Martin's Complex low pass. Three quite different resonance characteristics.
The 110F didn't have any wheels, but in their place three bipolar pressure pads - one applied vibrato when the top was pressed and LFO mod to the filter when the bottom was pressed. The second one opened or closed the filter and the third one raised or lowered one or both VCO pitches. I've adapted all that to be controlled by either p-wheel or mod-wheel, aftertouch or footpedal. When mod-wheel is assigned to filter and pitches, one can select normal or bipolar operation (with small dead zone at center), which is similar to the bipolar pads.