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Mutable Instruments Braids – No Longer Available

Complete control with this multi-function analog sound source
MFR# Braids

Product Description

Braids by Mutable Instruments is a voltage-controlled monophonic digital sound source.

Sound source… like an oscillator? Not really.

Most of the timbres it generates are so complex that approaching them with a classic analog modular setup would require a full case of oscillators, filters, VCAs, waveshapers and ring-modulators – that’s why we call it a macro-oscillator – intricate digital synthesis algorithms wrapped in oscillator’s clothes.

Each algorithm is controlled by two continuously variable parameters, Timbre and Color, both of them voltage controllable. Very often, these parameters simultaneously affect several dimensions of timbre, creating very complex movements which would be hard to generate with a traditional setup.

Synthesis algorithms

Analog synthesis

  1. Sawtooth with CS-80-style “tooth”-impurity. Modulating the tooth width and polarity creates phasing and timbre animation.
  2. Continuous morphing through triangle, sawtooth, square and pulse waveshapes. With adjustable overdrive and coloration.
  3. Sawtooth and square morphing. Continuous interpolation between the two shapes; and pulse-width modulation controls. Pulse-width modulation is applied to the sawtooth wave too, resulting in a thick “animated saw” sound.
  4. Dual square or saw wave with hard sync, with frequency ratio and balance control.
  5. Triangle and sine, with continuous interpolation between the two shapes; and wave multiplier.
  6. Triple saw, square, triangle or sine.


  7. Direct digital synthesis

  8. Three ring-modulated sine waves, with detune controls.
  9. Band-limited dual pulse train, with bandwidth and detune controls.
  10. Swarm of seven sawtooth waves, with detune and high-pass filtering controls.
  11. Digital Sawtooth wave sent into a tuned delay line (comb filter) with positive and negative feedback.
  12. Toy keyboard-like waveform generation, with waveshape and bitcrushing parameters.
  13. Direct digital emulation of triangle
  14. sawtooth and square waves sent into low-pass, peaking, band-pass and high-pass filters (Casio CZ meets Roland D-50)
  15. Cutoff frequency
  16. waveshaping controls.
  17. Vocal synthesis

  18. VOSIM synthesis with bell-shaped carrier; control over the frequency position of two formants.
  19. 80s Home-computer vowel synthesis, with vowel and approximative chipmunk-approved vocal range control.


  20. FOF vowel synthesis, with vowel and voice range (bass to soprano) control.
  21. Additive harmonics with harmonic emphasis.

  22. FM

  23. Two-operators FM 
  24. FM index and carrier/modulator ratio controls.
  25. Variants with rough feedback and chaotic behavior.
  26. Simulations

  27. Plucked string simulation, with strength/pressure and geometry controls.
  28. bowed string simulation
  29. Blown pipe simulation, with pressure and geometry controls.
  30. Flute simulation, with pressure and geometry controls.
  31. Additive bell 
  32. Drum
  33. Simulation of the 808 kick
  34. Simulation of the 808 snare
  35. Simulation of the 808 hi-hat 
  36. Wavetables

  37. 33 waveforms distributed over 20 wavetable with quantized wavetable selector, and smooth interpolation within a wavetable.
  38. 256 waveforms optimally laid out in a 16×16 map, with smooth XY interpolation across the map.
  39. Polyphonic wavetable synthesis, with chord control.
  40. Noise

  41. Pitched noise source with state variable filter; Q and Oberheim-style filter mode (LP to notch to HP) controls.
  42. Pitched noise source with dual bandpass filters; Q and separation controls.
  43. Clocked noise, with adjustable cycle length, and adjustable quantization.
  44. Granular cloud with density and dispersion parameters.
  45. Particle system simulation (“bag of stuff”) with density and dispersion parameters.
  46. Simulation of telecommunications digital modulator.

Additional features

  • Adjustable bit-depth / sample-rate for a grainy or low-fi output.
  • Optional quantizer on the pitch CV input with semitone or quarter tones resolution.
  • Optional analog-VCO-style linear detuning of higher frequencies.
  • Optional analog-VCO-style pitch fluctuations/instabilities.
  • Optional “waveform quirks”, unique to each module built!
  • Built-in AD envelope with 6 preset shapes to modulate timbre at the reception of a trigger.
  • Auto-gate feature automatically resetting the oscillator phase (or triggering the internal AD envelope) whenever a large change in pitch CV is detected.
  • Auto-calibrate feature digitally scaling the 1 V/Oct CV input to compensate for inaccuracies in CV converters… or to be used creatively to achieve other tunings than 1 V/Oct.
  • CV and/or Gate controlled scrolling message with text editor.

Inputs and outputs

  • Trigger input (required for the simulations which require an onset/excitation impulse, or to trigger the internal AD envelope).
  • V/Oct CV input.
  • Exponential FM CV input, with attenuverter. This uses a finer conversion resolution than the V/Oct input, making it suitable for subtle modulations with a resolution of 1 cent.
  • Timbre CV input with attenuverter.
  • Color CV input.
  • Audio output.

Technical characteristics (units manufactured in september 2015 or later)

  • All inputs: 100k impedance, DC to 4kHz.
  • 12-bit CV capture.
  • 96kHz, 16-bit audio processing (some algorithms 2x or 4x oversampled).
  • Cortex-M3 ARM processor.
  • Open-source hardware and firmware.
  • 16-HP.
  • Easy firmware updates through an audio interface.
  • Current consumption: +12V: 100mA ; -12V: 15mA.

Technical characteristics (units manufactured before september 2015)

  • 5V voltage source needed (for example Mutable Instruments Volts).
  • All inputs: 100k impedance, DC to 4kHz.
  • 12-bit CV capture.
  • 96kHz, 16-bit audio processing (some algorithms 2x or 4x oversampled).
  • Cortex-M3 ARM processor.
  • Open-source hardware and firmware.
  • 16-HP.
  • Easy firmware updates through an audio interface.
  • Current consumption: +12V: 15mA ; -12V: 15mA ; +5V: 85mA.

Product Specifications

Condition New
Chassis Module
Module Type Eurorack
Module Slot Count 16hp
Connector Type 3.5 mm

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