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neutral labs ELMYRA 2 Manual

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ELMYRA 2 v2.1
by neutral labs
Manual
Hello, owner.
ELMYRA 2 is a digital/analog hybrid platform for microtonal sonic
exploration,
capable
of
creating
anything
from
lush
ambient
soundscapes to gritty droning textures and shrieking noises, available
as a Eurorack module or semi-modular desktop synth. The included set
of preset cards or individual electronic components like capacitors or
diodes can be used to change the sound character.

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  • Page 1 ELMYRA 2 v2.1 by neutral labs Manual Hello, owner. ELMYRA 2 is a digital/analog hybrid platform for microtonal sonic exploration, capable creating anything from lush ambient soundscapes to gritty droning textures and shrieking noises, available as a Eurorack module or semi-modular desktop synth. The included set of preset cards or individual electronic components like capacitors or diodes can be used to change the sound character.

  • Page 2: Specifications

    ● Audio input: ideal 3V-10V, max. 15V peak-to-peak (mono) ● Audio output: 4V peak-to-peak (mono) Connecting ELMYRA 2 to USB power Connect the provided USB-A-to-USB-C cable (or any other such cable) to a USB power source. Unlike typical USB-A jacks, the USB-A connector of the provided cable is reversible.

  • Page 3: First Setup

    First setup Elmyra 2 contains some controls that can cause extreme types of sound, or no sound at all. To make sure your first session will not be frustrating, follow these steps before turning on the unit or module: ● Set MIX to minimum.
  • Page 4 Main signal flow Elmyra 2 has 4 identical voices that are mixed together with the mix getting saturated. The level of saturation is adjustable (see Advanced Settings) for softer or even dirtier sounds. This mix is then sent through a resonant low-pass state variable filter (LPF) – that can be changed to various other filter types (see Advanced Settings), and on to a delay.
  • Page 5 Voices Control Function Touchpads The metal pads at the bottom of the unit react to the touch of a finger (both pads of a voice must be touched). They modulate the volume of the voice depending on the intensity of the pressure as well as the conductivity of the skin (extremely dry skin will result in a lowered volume).

  • Page 6: Left Side Buttons

    This sets the amount of the current MODP voice modulation program. In the counterclockwise position, the voice will always be clean (unaffected by the modulation), unless the low-pass filter MODP effect is selected, in which case the voice will be clean in the clockwise position. The MODP programs are described in detail in a table further below.
  • Page 7 If you changed the program for a single voice only, the MODP LED will blink in the color of the last selected program to remind you that the settings are now different across the voices. This can be repeated for other voices, so each voice can have a different MODP effect (but the LED will only blink in the color of the last selected program).
  • Page 8 The step length is arbitrary, so you could e.g. record a looping 3 step sequence on voice 1 and a looping 7 step sequence on voice 2 (if you record them one by one). While the REC LED is lit up, press and quickly release the REC button to record one step (the current TUNE setting for the voice or voices) and advance to the next step.
  • Page 9 LPF (low-pass filter) The default main filter is a resonant 2-pole state variable low-pass filter. The mix of all 4 voices passes through this filter and is then sent into the delay. It is possible to switch to one of several alternative filter types: a 4-pole ladder filter or a 2-pole state variable filter in band-pass or high-pass configuration, see Advanced Settings.
  • Page 10 The modifier ports that are exposed on the front panel to the right of the knobs can be used to customize the sonic qualities of this circuit by using the included preset cards (or other Neutral Labs preset cards), or individual electronic components like diodes or capacitors.
  • Page 11 LFOs Elmyra 2 has 2 separate LFOs that can be patched into any of the modulation inputs. The waveform for LFO1 is a sine wave, while the waveform of LFO2 can be changed along a continuum of wavetable entries. The LFO’s frequencies can be synced to the clock, see Advanced settings.
  • Page 12 CV has no effect. For an LFO signal with a 0V to 3.3V swing, as output by the Elmyra 2 onboard LFOs or ENV outputs, this means that in the middle knob position the effect of the CV signal would span almost across the whole range of the parameter modulated by the knob.
  • Page 13 SHAPER A special waveshaper that shifts part of the wave up or down, similar in function to the Neutral Labs Meg Eurorack module. blue SATURATOR A saturator effect that will fatten up the wave.

  • Page 14: Audio Input

    MODP and PG buttons. These settings are not persistent across power cycles (with the exception of calibration), so you can be sure to be using Elmyra 2’s default settings whenever it was just turned on. To access one of these settings, press and hold the MODP button. While holding it, enter the numeric code using the 4 PG buttons, where each PG button’s number corresponds to the number of its voice.
  • Page 15 (LPF), band-pass (BPF) and high-pass (HPF) configurations. SV HPF Reverb off* Elmyra 2 shines with an external stereo reverb. Alternatively, this setting adds a crude lo-fi mono reverb behind the delay in the signal chain. none This changes the level at which the mix of...
  • Page 16 LFO sync LFO1 free* When synced (and if a clock tempo has been set, meaning the SYNC LED is flashing), the LFO1 sync LFO cycle will restart with the clock cycle and the period will correspond to the clock LFO2 free* period (if the LFO FREQ knob is clockwise from the middle position) or half the clock LFO2 sync...
  • Page 17 cases, these default calibration settings will be stored and then recalled automatically whenever the device is powered on. If the tuning is still off, this means your power supply deviates from the standard 5V for desktop or +/-12V for Eurorack, thus affecting the voltage readings slightly.
  • Page 18 Modifier ports The ports at the top right of the unit labeled P|S|G|S|P support the plugging in of preset cards (bundled or available from Neutral Labs), as well as individual passive components like resistors, capacitors or diodes. LEDs and LDRs (light-dependent resistors) can be used as well.
  • Page 19 Caution: As shown by the warning icon to the top left of the ports, do not use normal (unipolar) electrolytic capacitors unless you know exactly what you’re doing! Reverse voltage may make them explode violently. Large value bipolar ceramic capacitors are easily available should used instead.

  • Page 20: Troubleshooting

    (via USB-C-to-USB-A adapter) or USB battery pack. If it doesn’t, you’re dealing with an extremely noisy power supply. Elmyra 2 goes to great lengths to filter all but the most extreme types of power supply noise, and works well with most supplies, but unfortunately some supplies are just crazy in this regard, which is why you will have to get another.
  • Page 21 The touchpads do If you have very dry skin, you may have to press on not react to touch. the pads somewhat harder. If this does not work, you may want to check the brass nuts (on the back of the Eurorack module, or accessible after removing the front panel screws for the desktop version).

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