Kiro Synth

This is my 4rd iteration on building a synthesiser ;-)

This time, these are my goals:

• The synth logic can be used in embedded systems (I plan to build actual hardware from this).
• Internally it is like a modular synth, where all the blocks (Osc, Lfo, Filter, Env, Dca, ...) can be patched together using a simple Rust DSL

This is the very beginning of this project and I plan to take quite some time developing it, but it already makes some noise ;-)

cd kiro-synth-host
cargo run --release

NOTE: You have to connect your MIDI keyboard before starting the synth. Also it only supports MacOS right now.

Screenshots

Roadmap

• Basic synth pieces: Oscillator, EG, LFO, Filter, DCA
• Rust DSL to build the synth graph as a program
• Basic voice management
• Parameters can be changed from MIDI events or a UI
• Controlling parameters from a Druid UI
• Modulation of parameters through a modulation matrix
• The modulation matrix can be tuned from the UI
• UI feedback for the modulations
• UI feedback for the number of voices
• UI feedback for the output levels
• Fix modulation parameters value ranges
• Fix LFO phase parameter
• Add note expression as modulation sources (velocity, pitch, modwheel, after touch)
• Patch management from configuration
• Patch management from the UI
• Internal signals explorer (oscilloscope, spectrum analyzer, Peak/RMS level meter)
• Improve the program with more blocks (add one more EG and LFO)
• Improve the program graph to include global oscillators parameters (octave, semitones, cents, drift, filter output)
• Improve the program graph to allow FM synthesis using the oscillators
• Improve the program graph to add more parameters for the oscillators (filter output)
• Add a square waveshape (including new parameter for width)
• Add noise waveshapes
• Add more filters
• Filter mode parameter shows the filter name in the UI
• Improve the Knob widget to support logarithmic parameters
• Unison ?
• UI feedback for the CPU usage
• ...