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Description

The WMDevices Aperture is a variable-width bandpass filter with fast and tactile controls. It is capable of simple filtering, self oscillation FM timbres, nasty acidic squelches, and capturing images of UFOs descending from the heavens on a cold winter’s night. The concept is a bandpass that ranges from transparent to gnarly, with precision controls that behave under stress, all while being joyful to wreak havoc with. CONTROLS *LEDs along the top indicate width and position of the filter Frequency: Controls the center frequency of the band Width: Controls the width of the band. Freq CV: Attenuverter for the CV input for precise control over the Frequency of the filter. HP Res: Controls the amount of resonance on the High Pass side of the filter. LP Res: Controls the amount of resonance on the Low Pass side of the filter. Input Level: Attenuates the input level. Unity at 12 o'clock, total gain of 6 dB Feedback: Controls the amount of feedback for more self oscillation and squelchy behavior. Dry/Wet Mix: You know what this means Width CV: Attenuverter for CV control over the width of the filter. JACKS 1V/ Oct: The aperture’s cutoff frequency will track at 1V/oct. This is the input for that. In LVL: Input for CV control over the input level attenuation. Freq: CV input for control over the cuttoff frequency. Width: CV input for control over the width of the band. FDBK: CV input for control over the feedback amount. Input: This is where your audio signal you want to filter goes. Output: This is where the filtered audio signal comes out. HPCV: CV input for independent control over the cutoff frequency on the high pass side of the filter. LPCV: CV input for independent control over the cutoff frequency on the low pass side of the filter. HP Res: CV input for control over the resonance on the high pass side of the filter. LP Res: CV input for control over the resonance on the low pass side of the filter. SPECIFICATIONS: Current: +12 V = 120 mA, -12 V = 100 mA Depth: 25mm including power Width: 12 HP Height: 3U Eurorack Input Gain: -90 dB to +6 dB Nominal Input: 10V pp HPF Cutoff Freq Range: 0.5 Hz to 50 kHz LPF Cutoff Freq Range: 0.1 Hz to 25 kHz Poles: 8 FEATURES: Variable bandwidth via tactile and CV controls Eight pole filter core Independent resonance and self oscillation of both sides of the filter with CV Feedback circuit with two modes and CV Input level VCA Additional CV for opening the band either side of Center V/oct tracking Temperature compensated Dry / Wet mix for parallel filtering sounds

Discussions

The Modular Thread 2017

...to just continue to propagate the "module of the month" hype ;). You should take a look at the WMD Aperture. I don't personally have one, but it seems like an extremely capable and flexible filter for a starting system.

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The Modular Thread 2017

...be able to repeat it, but there's a cool, cello type sound with Klavis Twin Wave going into the Aperture with a bit of modulation on the feedback input. Full list of modules used includes: Pamela's New Workout Braids Batumi WMD S.P.O. WMD Aperture WMD MMF Evolution Voltage Block Ladik M-216 Grids Octocontroller Disting Mk3 Klavis Twin Wave Warps (Parasite) Clouds (Parasite) Freez Erica Pico DSP TINRS Tuesday Disting Mk4 Ornament and Chrime Peaks...

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Sennheiser MKH 416 and Sony PCM-D100

Speed booster is necessary IMO to function in lower light settings. The prime 25mm lens doesn’t need it, but most other lenses don’t have great aperture ratings.

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