ModSynthMono is a free monophonic synthesizer offering the same powerful sound engine as its polyphonic counterpart. Drawing inspiration from classic instruments like EMS SynthiA, Sequential Circuits Prophet-5, and Oberheim Xpander, it delivers rich sonic possibilities through its unique architecture. This synth features two oscillators with multiple waveforms including sine, triangle, saw, and pulse waves, alongside noise generation, wave folding, and shaping modules that add harmonic complexity and subtle aliasing effects for a distinctive tone.

The instrument’s modulation system is centered around a comprehensive matrix, allowing flexible routing between sources such as oscillators, LFOs, and envelopes to destinations like pitch, waveform, filters, and wave processing modules. This approach offers deep control over sound design without relying on presets, encouraging users to craft unique tones from scratch. Additional features include high-pass and low-pass filters with resonance controls, a single LFO with various wave shapes, ADSR envelopes with looping capabilities, portamento, and volume control.

ModSynthMono’s signal flow is carefully designed to maintain clarity and character, passing through wave folding, shaping, filtering, and drive stages before amplification. The oscillators use anti-aliased waveforms to ensure clean sound quality, and all parameters are accessible directly on the resizable interface panel for intuitive operation. This synth is ideal for producers and sound designers seeking a compact, expressive tool that combines vintage inspiration with modern flexibility.