FMco

A compact FM synth voice in 8 HP: ALM's own 2-operator FM, inspired by the Akemie modules, with manual and voltage control of the FM Index, the Ratio (Lock restricting it to integer multiples) and eight operator waveforms; a built-in decay envelope on FM depth and level when Trig is patched; CV-controlled four-voice chords with inversion; an endless encoder for the base frequency; stereo-widened outputs.

Key features

• Freq: a clickable encoder (octaves, semitones, cents), about 32 Hz to 8.3 kHz, plus V/Oct
• Ratio with Lock (integer ratios, its lamp lit), Index with its attenuverter, Wave (8 shapes) with its attenuator
• Chord (16 chords) and Inv inputs
• Decay and Trig: a self-contained voice
• Out L and Out R, stereo widened