Ambika Desktop Poly Synth Project

Ambika is a multi-voice hybrid synthesizer. You can play it as a 6-voice polysynth, an ensemble of 6 monosynths, or anything inbetween due to its easily configurable voicing architecture.

The sound generation is hybrid, combining the warmth and sonic character of a true 4-pole analog filter, with the large array of waveforms offered by digital wavetables, fm and phase modulation. The digital control of the analogue filter and VCA also means a very large palette of modulation possibilities.

Some of the key features of Ambika include:

• 6 voices with individual outputs.
• 2 digital oscillators per voice, with 36 oscillator algorithms/wavetables.
• 1 sub-oscillator, also configurable as a transient generator.
• Pre-filter overdrive and bit-crushing effect.
• Analog 4-pole filter (or 2-pole multimode filter depending on the type of voicecard used) and VCA.
• 3 ADSR envelopes, 3 patch-level LFOs, 1 voice-level LFO.
• Modulation matrix with 14 slots and 4 modulation modifiers.
• 1 arpeggiator, 1 note sequencer and 2 step sequencers per part.
• Flexible mapping of the 6 voices. A single patch with 6 voice-polyphony, 6 independent mono parts, 2 layered patches with 3-voices polyphony, a 3-voice unison bass line on the lower half of the keyboard with a 3-voice unison lead on the upper half… all are possible!
• SD-card storage allows the storing of a life-long of patches, programs and multis, along with the history of editing operations for undo/redo.

SMR-4 voicecard assembly instructions / BOM / schematics

Other voicecards assembly tips / BOM / schematics

Mechanical assembly

Firmware setup

Technical notes