Erica Synths Bullfrog ADSR Voice Card Erica Synths EDU DIY FM Drum Gated Slew function allows users

Gated Slew function allows users to add slew to any voltage signal at designated times by sending it a gate signal from a sequencer or similar source

A 2-stage Analog Envelope Generator with Sustain gives you the control to shape your dynamics

from logarithmic to linear to exponential

Bottom row

Pickup simulator - Fuzz circuits offer unique sound when paired with the inductance of the pickup coils in a guitar

Erica Synths Bullfrog ADSR Voice Card Erica Synths EDU DIY FM Drum Gated Slew function allows usersVoice 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