http://vimeo.com/46660673

This is a sneak preview of the Mutable Instruments Anushri synthesizer, now under development.

Features not demoed here:

• Arpeggiator
• VCA envelope and envelope modulation of VCO / PWM
• The 8 LFO shapes and LFO > tempo synchronization

Here are the details on the Anushri synthesizer:

Analog synthesis

• Analog VCO with saw and pulse waveforms, freely mixable.
• Optional automatic VCO calibration in software for those who don’t like messing with trimmers.
• -1 or -2 octaves sub-oscillator.
• Auxiliary square oscillator (DCO) with accurate digital tuning available as an FM modulator or as a sync master for theVCO (yes, it means “ewwwwwwiowwww” and “wongwong”).
• 12dB/octave multimode filter, with smooth self-oscillation.
• Post-filter overdrive/fuzz circuit.
• Linear VCA.

Modulation sources

• 1 main ADSR envelope routable to pitch, pulse width, cutoff frequency.
• 1 simple 1-parameter envelope (morphing through various stages, including the shape of the main ADSR, and a rigid “GATE” style envelope) routed to VCA.
• Velocity routed to either cutoff frequency or VCA gain.
• 1 LFO routable to pitch, pulse-width and cutoff frequency ; with 8 waveforms (triangle, square, ascending and descending ramps, S&H, bernouilli process, piecewise linear random process aka “autodubstep”, noise).
• 1 triangle LFO for vibrato and/or growl.

Arpeggiator and sequencer

• Arpeggiator with 4 modes (up, down, up&down, random) ; 1 to 2 octaves ; 6 patterns.
• SH-101-style note sequencer with step by step recording, up to 128 notes. Easy recording of pauses, ties, and glides.
• Tempo set by internal clock with shuffle, external MIDI clock or external 6/12/24 ppqn trigger.

Drum machine

• Algorithmic drum pattern generator using an innovative “pattern sculpting” approach – allowing a large combination of drum patterns to be sculpted from 5 knobs
• Digital sound generation of BD / SD / HH with tone control
• Drum sounds can be freely triggered from an external sequencer using MIDI channel 10

Interface

• 9 pots and 4 switches for hands-on access to synthesis parameters.
• 9 “soft-pots” for editing modulations / arpeggiator / drum machine settings.
• 3 dedicated navigation buttons (“modulations”, “arpeggiator / keyboard”, “drum machine”).
• 3 dedicated sequencer buttons (“record”, “play”, “hold / rest”).

In/out

• VCO CV in/out (Note: manual VCO calibration is required for accurate 1V/Oct I/O).
• VCF CV in/out (Note: manual VCF calibration is required for accurate 1V/Oct I/O).
• Gate signal in/out (5V level for output).
• 24, 12 or 6 ppqn clock signal in/out (5V level for output).
• External Audio in.
• Audio out.
• MIDI in/out (thru + arpeggiator and sequencer notes).
• CC control over modulations and some of the digitally controlled synthesis parameters. Some parameters like filter resonance cannot be CC-controlled.

“Eurorackable”

• Remove main audio in / out and solder corresponding minijacks on PCB
• Remove LT1054 and solder 2×5 power connector
• Route MIDI in/out to front panel (if you want…). And that’s it!

Availability

• DIY product (full kit)
• Price < 200€ / kit
• Available < October 2012

via Mutable Instruments