Borg ER-3

A portable (SDL) audio synthesizer / tone generator inspired by the Korg ER-1

• FlatHub: com.voxdsp.Borg
• Snapcraft: borger3
• Latest Release: Windows, Linux, Deb, AppImage, etc

Fixed-state modular synthesizer using FART oscillators, if you can hold back the chuckles for a moment stands for Frequency, Amplitude, Resolution, and Transformation oscillators, the resolution regards harmonic resolution and transformation regards the wave-shape being produced by the oscillator.

The envelope can be clicked and dragged into any shape, the biquads can be manually configured on a per coefficient basis, they are executed in sequential order so BIQUAD 1 executes first.

On Windows exported files save to the local directory that the program was executed in, on Linux exported files save to: ~/EXPORTS/Borg_ER-3/

Technical details

• FART = Frequency, Amplitude, Resolution, Transition
• Resolution = How many additive sinusoids are combined to make the final waveshape.
• Transition = Selects which wave shape to output but also allows blending between the shapes.
• Wave shape order: Sine, Slanted Sine, Square, Saw, Triangle, Impulse, Violin.
• Binds to play audio: spacebar, mouse3, mouse4
• Reset envelope: right click on it
• Scroll dial sensitivity selection: right click, three sensitvity options
• Adjust dials by left click and drag or hover and scroll mouse 3 in the Y axis.
• BIQUADS are executed from left to right, first BIQUAD 1, then 2, then 3.
• You can use the Load button to reset any changes since your last Save.
• You can mouse scroll zoom the oscilloscope, right click to reset zoom.

Build Instructions

sudo ./getdeps.sh
./compile.sh