Manipulate Your Signals In Multiple Dimensions With The Mutable Instruments Warps Meta Modulator Eurorack Module
Evolved from the oscillator mixing section of Mutable Instrumentsâ€™ desktop hybrid synths, Warps is designed to blend and combine two audio signals. A variety of cross-modulation methods - some of them emulating classic analog circuits, some of them purely digital - are provided by the module. With Warps, the cross-modulated sound can be sculpted with control voltages along 4 dimensions: by controlling the amplitude and distorting the input signals, by smoothly scanning through the collection of modulation algorithms, and by adjusting a timbre parameter controlling the brightness/harshness of the modulated signal.
Most cross-modulation algorithms provided in Warps make the distinction between a carrier signal and a modulator signal: the carrier signal will be filtered or modulated to acquire some of the characteristics of the modulator signal. However, some other algorithms emulate symmetrical circuits and do not make such a distinction (the underlying mathematical operation is commutative).
Since many classic cross-modulation effects work best when the carrier is a simple waveform - for example, a sine wave for ring-modulation or a buzzing waveform simulating glottal pulses for vocoding - Warps includes a digital oscillator offering a handful of classic waveforms. This internal oscillator tracks V/Oct and will replace the carrier audio input - freeing up one oscillator in your system for other duties!
- A. Modulation algorithm. This knob selects which signal processing operation is performed on the carrier and modulator. The algorithms are described in further details in the next section.
- B. Modulation timbre. This knob controls the intensity of the high harmonics created by cross-modulation - or provides another dimension of tone control for some algorithms.
- C. Internal oscillator state. This button enables the internal oscillator and selects its waveform. The color of the LED depends on the oscillator waveform - when the LED is off, the internal oscillator is disabled and an external signal is used as a carrier.
- D. External carrier amplitude or internal oscillator frequency. When an external carrier is used (that is to say, when the internal oscillator is switched off), this knob controls the amplitude of the carrier, or the amount of amplitude modulation from the channel 1 LEVEL CV input. When the internal oscillator is active, this knob controls its frequency.
- E. Modulator amplitude. This knob controls the amplitude of the modulator, or the amount of amplitude modulation from the channel 2 LEVEL CV input. Note that gains above 1.0 can be applied, for a warm overdrive effect!
- 1. External carrier amplitude or internal oscillator frequency CV input. When the internal oscillator is switched off, this CV input controls the gain of the carrier input. When the internal oscillator is enabled, it acts instead as a V/Oct control for the oscillator frequency.
- 2. Modulator amplitude CV input. This CV input controls the gain of the modulator input. Just like its carrier counterpart, it is internally normalized to a constant +5V source when no patch cable is plugged in. When a signal is patched into this input, the amount of CV modulation is controlled by the Modulator amplitude knob (E).
- 3. Algorithm CV input. The CV on this input is added to the position of the Modulation algorithm knob (A).
- 4. Timbre CV input. The CV on this input is added to the position of the Modulation timbre knob (B).
- 5. 6. Carrier (1) and modulator (2) audio inputs. Warps expects modular-level signals (typically 10Vpp, up to 20Vpp).
- 7. Modulator output (1x2). This is the main audio output.
- 8. Auxiliary output. This output carries, when the internal oscillator is disabled, the sum of the carrier and the modulator, post VCA. Otherwise, it carries the raw waveform from the internal oscillator.
- Crossfade. The carrier and modulator are crossfaded into each other, using a constant-power law. TIMBRE controls the crossfading position - both signals are equally mixed at 12 oâ€™clock.
- Crossfolding. The carrier and modulator are summed, a tiny bit of cross-modulation product is added to spice things up, and the resulting signal is sent to a wavefolder the amount of which is controlled by TIMBRE.
- Diode-ring-modulation. The carrier and modulator are crudely multiplied, using a digital model of a diode ring-modulator. TIMBRE post-processes the resulting signal with a variable amount of gain (and emulated diode clipping).
- Digital ring-modulation. A gentler version of the previous algorithm which uses a proper multiplication operation in the digital domain, which will sound more similar to all the AD633-based analog ring-modulators out there! TIMBRE post-processes the signal with a gain boost and soft-clipping.
- XOR modulation. Both carrier and modulator are converted to 16-bit integers, and the two resulting numbers are XORâ€™ed bit by bit. TIMBRE controls which bits are XORâ€™ed together.
- Comparison and rectification. A handful of signals are synthesized through comparison operations
Manufacturer: Mutable Instruments
Warranty: See manufacturer website for details
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