Erica Synths Bullfrog Sequencer Voice Card

Voice cards expand the functionality of the Bullfrog and make it even more versatile. Some voice cards replace patch cables - they connect the "modules* of the Bullfrog internally, while others have built-in mixers, signal generators, and advanced electrical circuits to control the synthesizer, for example, the Sequencer sends CV to control pitch and gate to start events on the synthesizer and the Sampler/Looper emulates reel to reel tape recorder functionality.

The ANALOGUE SEQUENCER voicecard, as its name suggests gives you a compact CV/GATE five step sequencer. It generates up to five steps of discrete control voltages that control a pitch of the VCO and gates that trigger the ENVELOPE GENERATORS. Audio and CV connections are same as on the Acid Bassline voicecard. Set both EGs to the FREE mode, set VCA OFFSET all way counter clockwise. The STEPS switch determines a length of the sequence, the CLOCK switch selects between and internal clock defined by the RATE knob on the SAMPLE & HOLD module or an external GATE (MANUAL GATE, MIDI or external analogue gate). The faders set note value on the each step, while pushbuttons above allow to turn off certain steps, this means, there will be no gate on these steps. Set the sequencer in the LFO mode, set the BPM (Beats Per Minute) of the sequencer using the RATE knob and use faders to design a sequence, you like. Manipulate VCF and envelope generator settings for the sound, you like. If you happen to have several Bullfrogs, you can chain them up so that sequencers run at the same rate. To do so, patch the PULSE OUT of the “master” Bullfrog into GATE input on the rear panel of the second Bullforg and set the second sequencer to the GATE mode.