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  • Trommelmaschine

    trommelmaschine / three-voice hybrid drum synthesizer / 18 HP ⇣ TROMMELMASCHINE is the German name for "drum machine", and it perfectly sums up the essence of such a machine: a versatile three-voice digital and analog drum module that can be used to create a range of kick drums and various percussion sounds. 1/3 key features 3 Voice Drum Generator Digital & Analog Drum Synth plus Noise Two Digital Drum Modes CV Inputs with Attenuators Internal Mixer Individual Outputs Wrong Polarity Protection Firmware based on MI Peaks: Released under cc-by-sa-3.0 License specs & downloads width: 18 HP depth: 28 mm power: 165 mA @ +12V / 72 mA @ -12V documentation videos description / manual This drum module features a DIGITAL DRUM VOICE (D) with PITCH and TONE control that has three modes (with latest firmware V2): KICK, SNARE and PERC. Press and hold the MODE switch for one second to switch between the KICK and PERC modes. When in KICK mode, press the button briefly to switch to SNARE mode. In KICK mode the sliders are MOD1 = DECAY, MOD2 = TRANSIENT, MOD3 = PITCH ENV and in PERC mode MOD1 = COLOR, MOD2 = DECAY and MOD3 = FM AMT. In SNARE mode the sliders are MOD1 = DECAY, MOD2 = SNAPPYNESS, MOD3 = TONE. PITCH and MOD can be changed manually or via CV with dedicated attenuators. If nothing is connected to the CV inputs, the MOD CV attenuators change the response curve of the MOD sliders. Turn them to the right to get a linear response and to the left to get a logarithmic response. This facilitates precise adjustment of the slider positions. The ANALOG DRUM (A) voice has DECAY, DRIVE and PENV (pitch envelope) sliders, plus PITCH and LENGTH (pitch envelope length) potentiometers. These can also be controlled via CV. The PITCH CV input tracks 1V/OCT and can be used to play notes. The EMPH input lets you emphasize the signal. This jack can be used as an input to control the internal VCA, e.g. to feed it with an ADSR. The third voice is a NOISE GENERATOR (N) with COLOR control and DECAY slider. The decay of the noise can also be controlled via CV. All voices have individual trigger inputs (D. TRIG is normalized to the other trigger inputs) and individual outputs and are also summed using an internal mixer at the MAIN output. The volume of each channel can be changed with the volume pots. Loudness LEDs indicate when a voice is close to clipping. TROMMELMASCHINE QUICK START GUIDE: TROMMELMASCHINE_QUICK_START .pdf Download PDF • 983KB prev Up next

  • Once In A While

    once in a while / 3-channel mono, 1-channel stereo CV click-less mute / 6 HP ⇣ Tired of muting with all the drama of a Shakespearean tragedy? Say goodbye to the click drama with our click-less mute module. It's like giving your modules a chill pill – no more dramatic exits, just smooth audio bliss. 1/4 key features 3-Channel Mono Mute 1-Channel Stereo Mute Click-Less Muting based on Vactrols STRIKE Buttons for Performance Mutes LED Indication MUTE or GATE Mode for Channels 1-3 Wrong polarity protection ​ specs & downloads width: 6 HP depth: 35 mm power: 25 mA @ +12V / 14 mA @ -12V documentation videos description / manual ONCE IN A WHILE is a 3-channel mono and 1-channel stereo mute switch with CV control. Any audio or CV signal fed into the IN jacks and taken from the OUT jacks can be muted and unmuted with a latching MUTE button per channel. If a channel is not muted, you can also mute it momentarily with the dedicated STRIKE button. Conversely, you can unmute a mono channel with the same STRIKE button if it is muted (this is not possible with the stereo channel). LEDs indicate whether a signal is being passed. You can also use CV signals to mute channels. Just connect a gate, LFO or envelope to the CV inputs and the channel will be muted from a voltage of about 2 volts. Even if you apply a control voltage to the CV inputs, you can mute the signal with the MUTE (latching) or STRIKE (momentary) buttons. Before soldering the module, you can decide if you want to use one of the mono channels alternatively as a low-pass gate. It's a single resistor you need to change and a mono channel becomes an LPG when a CV signal is patched into its CV input. So if the channel is muted, it will be unmuted again when the CV input is high. Mute mode = CV mutes the signal when it is not muted.LPG mode = CV unmutes the signal when it is muted. The first input is normalized to the other inputs. Therefore, you can also use ONCE IN A WHILE as a 1 to 4 buffered multiple with individual mute switches. ONCE IN A WHILE was designed to provide click-free muting for audio signals, but has become much more performance-oriented with the addition of momentary STRIKE buttons and CV inputs. It was optimized to be used with the VTL5C9 Vactrol. You can also use other vactrols, but then you may get clicks when muting audio. prev Up next

  • LFOR

    lfor / digital lfo and stepped random generator / 4 HP ⇣ Combining a digital Low Frequency Oscillator with a Stepped Random Generator, this module offers three distinct voltage outputs in the form of Pulse, Triangle, and Random waveforms. The LFO functions as both a voltage and trigger source, while the Stepped Random feature can be seamlessly looped for continuous operation. LFOR_BACK.jpg 1/3 key features LFO with 3 Waveforms Triangle, Pulse and Stepped Random LFO Rate potentiometer Voltage Control over Rate LFO Reset Stepped Random lockable to 16 or 8 steps Random Voltages normalized to LFO Rate Pulse can act as Rythm Generator Wrong polarity protection Skiff friendly ​ specs & downloads width: 4 HP depth: 28 mm power: 25 mA @ +12V / 20 mA @ -12V documentation videos description / manual The LFO provides three voltages in shape of Pulse, Triangle and Random. It can be used as a voltage and trigger source. The frequency of the LFO can be changed using the Rate potentiometer on top. The LED is indicating the current speed. The Rate of the LFO may be voltage controlled using the Rate CV jack. The small potentiometer acts as an attenuator. Additionally the LFO cycle can be reset via a trigger signal at the Reset jack. ​ The Triangle output provides a standard triangle waveform. Random supplies a randomly stepped voltage at LFO rate. This random voltage is normalized to the LFO CV in creating some interesting random voltages on the other outputs. This connection can be interrupted by inserting a patch cable to Rate CV. Using the Random Lock Switch it is possible to lock the random steps to identical patterns of 16 (mid position) or 8 (down position) steps. If the switch is positioned upwards it is completely random. Patching a voltage to RNDM CV will give you CV control of the Random Lock (switch must be in mid position). Any voltage above 3 volts will produce random steps, any voltage below 4 volts will lock the random out to a pattern of 8 steps. ​ Pulse out is not a typical pulse wave you would expect from an LFO. It is rather a rythmical trigger producing one long pulse at the start of the cycle and a short pulse at the end. This way and by the normalized random voltage (if the CV attenuator is turned clockwise), you will have a wide range of random or locked pulses to trigger VCAs or sequencers. ​ A simple AVR-programmer is neccessary to complete the build. Nevertheless it is a very easy build with only 37 parts in total. prev Up next

  • ADSR

    adsr / envelope generator offdering three distinct lentgh modes / 4 HP ⇣ ADSR is a classic Envelope Generator creating an envelope with an Attack, Decay, Sustain and Release stage. 1/3 key features ADSR Envelope Generator Regular and Inverted Output Re-Trigger Input Three Length Modes Snappy from 20 micro seconds until evolving to 110 seconds Skiff friendly Wrong polarity protection ​ specs & downloads width: 4 HP depth: 28 mm power: 25 mA @ +12V / 25 mA @ -12V documentation videos description / manual ADSR can be triggered with a Gate signal and will output the envelope with a range of 0V to +8V on the regular output jack and 0V to -8V on the inverted output jack. ​ The envelope may be re-triggered using the RTRG input as long as the Gate on the Gate Input is high. ADSR has three different Length Modes from Slow over Moderate to Fast. The envelope can be very short (20uS) up to very long (110s) making it a useful tool for percussion like sounds and evolving soundscapes. The Moderate Mode is the best option for regular synth sounds. ​ The LED between the A (Attack) and D (Decay) potentiometer indicates the current state of the envelope. prev Up next

  • Envoltura

    envoltura / dual analog envelope / 14 HP ⇣ Experience the classic charm of analog envelopes based on the Roland System 100M 140 Dual ADSR module, made snappier with intuitive visual controls. Furthermore, thanks to its built-in VCA, manual level controls, potent cyclical gate generator, and user-friendly trigger buttons, ENVOLTURA elevates your sound-sculpting prowess to new heights. And when you double it up, prepare for twice the thrill! 1/3 key features Based on System 100M 140 Module Dual ADSR CV Level Control Inverted Output Retrigger Input Push Inputs Short and Fast Switch Manual Trigger Buttons Cycle Functionality Skiff friendly Wrong polarity protection ​ specs & downloads width: 14 HP depth: 30 mm power: 89 mA @ +12V / 56 mA @ -12V documentation videos description / manual ENVOLTURA boasts a highly responsive analog envelope with controls for ATTACK, DECAY, SUSTAIN, and RELEASE. When a gate signal is applied to the GATE input, the envelope is triggered, and a corresponding CV signal is produced at the OUT, with an inverted version available at the INV output. Furthermore, an end-of-cycle GATE signal can be accessed from the EOC socket, which outputs a gate signal when the sustain phase of the envelope ends. The signal remains high until the start of the next attack phase. The gate is indicated by an LED. You have also the flexibility to retrigger the DECAY phase of the envelope by applying a trigger signal to the RTRG input. IN addition to manual level adjustment via the slider level potentiometer, you can modulate the envelope's level using an internal VCA by patching a CV signal to the VEL input socket. An exclusive attenuator enables precise control over the level modulation. For dynamic modulation, simply patch any CV source to the PUSH inputs and manipulate both the envelope's length and level. Fine-tune the overall length range with the SLOW/FAST switches, and if desired, activate the CYC switch to let the envelopes cycle within specific ranges. Please note that cycling may stop for very fast cycles and that the envelope doesn´t restart from 0 volts. Finally, you can also trigger each envelope manually. Please note that both ADSRs are normalised to each other, so that pressing a button always triggers both envelopes, unless a patch cable is connected to the gate input of the other. ENVOLTURA QUICK START GUIDE: ENVOLTURA_QUICK_START .pdf Download PDF • 775KB prev Up next

  • 2xLFO

    2xlfo / dual analog lfo / 3 HP ⇣ 2xLFO is a simple dual analog low frequency oscillator with two waveforms each. 1/3 key features Dual LFO with 2 Waveforms each Triangle, Pulse Waveforms selectable via Switch Rate Range changeable via Switch LFO Rate potentiometers Suitable for Audio Rates Wrong polarity protection Skiff friendly ​ specs & downloads width: 3 HP depth: 30 mm power: 15 mA @ +12V / 15 mA @ -12V documentation videos description / manual The module offers the choice between a triangle and square waveform, conveniently switchable. The rate can be finely tuned using dedicated potentiometers. A switch allows seamless adjustment from extremely slow to audio-frequency rates. ​ The module features two LEDs that provide visual feedback on the current LFO voltage state. ​ Beyond its traditional LFO functionality, this module also operates as a dual sound source. It's particularly well-suited for crafting tonal percussion sounds that don't require pitch modifications via CV. With a straightforward design, the module comprises only 19 distinct solderable components, making it an uncomplicated build. prev Up next

  • Cinco

    cinco / five oscillators in a module / 14 HP ⇣ CINCO consists of a series of five oscillators that can be controlled in pitch from a single source. It generates drones, chords and massive walls of sound that stand out impressively from classic single-wave oscillators. 1/3 key features Five Analog Oscillators 2x Saw or Pulse and 3x Saw Waves Individual Pitch Controls Single CV Pitch Input Transpose all Oscillators Internal Mixer Individual Outputs Pulse Width Control (OSC 1 & 2) FM Inputs (OSC 3, 4 & 5) Skiff friendly Wrong polarity protection ​ specs & downloads width: 14 HP depth: 30 mm power: 65 mA @ +12V / 43 mA @ -12V documentation videos description / manual Cinco boasts five analog oscillators capable of generating drones or chords comprising five notes, accessible from the MIX OUT socket. Each oscillator's tuning can be adjusted independently using the TUNE and FINE controls. Simultaneous pitch control for all five oscillators is facilitated by patching CV to the CV ALL input. Moreover, the TUNE ALL knob allows for collective transposition of all oscillators, with the range of transpose amount adjustable via a trimmer located on the module's rear. While Cinco wasn't specifically designed for precise 1V per octave tracking, you can achieve close approximation by calibrating tuning using trimmers located on the module's back. The first oscillator is slightly tuned below the rest, while the last oscillator is slightly tuned above. The fixed oscillator tuning can be changed with optional capacitors on the circuit board. Oscillators 1 and 2 offer a choice between a SAW or PULSE waveform, each selectable via dedicated toggle switches. Pulse width adjustment can be done manually using the PLS WIDTH knobs or via CV modulation. In the case of CV modulation, the PWM knob controls the intensity of the modulation. It's important to note that these PWM knobs aren't attenuators; hence, incoming CV cannot be completely deactivated for pulse width control but can be reduced to a pleasant level. Oscillators 3 to 5 exclusively output a saw waveform and include additional frequency modulation inputs (FM IN). Applying voltage to these inputs modulates the frequency (pitch) of the oscillators. The FM AMT controls determine the degree of CV influence on the frequency. Similar to previous controls, the FM AMT knobs aren't attenuators, meaning full left rotation won't completely eliminate FM, but rather reduce it to a minimal level. Notably, the FM IN input of oscillator 3 is normalized to the other FM inputs. This facilitates pitch control for oscillators 3 to 5 alongside the primary CV ALL pitch input. If desired, this normalization can be disabled by desoldering an SMD bridge located on the back of the PCB or by connecting dummy cables (patch cables that are not connected further) to the other FM inputs. Utilize the five LEVEL controls to precisely adjust the volume of each oscillator or completely deactivate them by turning the controls fully counterclockwise. Additionally, each oscillator is individually outputted via the OUT sockets located at the bottom, allowing for further isolated processing of the signals with external modules. Importantly, these individual outputs are not affected by the LEVEL controls and typically produce louder signals compared to the mixed output. Cinco isn't just a source for rich and harmonically versatile analog sounds; it's also capable of generating harsh and earthshaking waveforms, particularly when utilizing the FM inputs. CINCO QUICK START GUIDE: CINCO_QUICK_START .pdf Download PDF • 782KB prev Up next

  • Drum

    drum / digital drum module / 3 HP ⇣ DRUM is an excerpt of the Mutable Instruments PEAKS module. It was reduced to the max and only focuses on the 808 and FM Drum algorithms. 1/3 key features Digital Drum Module Two Modes: 808 & FM Manual and CV Trigger HP friendly Flip Panel with Descriptions for each Mode Based on the MI Peaks Algorithms Wrong Polarity Protection specs & downloads width: 3 HP depth: 65 mm power: 60 mA @ +12V / 2 mA @ -12V documentation videos description / manual There are two modes to be selected via a push button on the PCB: ​ 808 DrumThis is an emulation of the well-known 808 kick drum. You have manual control over the FREQUENCY, PITCH ENVELOPE, TRANSIENT and DECAY. ​ FM DrumThis is a digital drum synth based on FM synthesis. By turning the knobs you can change the FREQUENCY, FM AMOUNT, DECAY and COLOR of the drum sound. ​ DRUM has an internal EQ that allows you to adjust the amount of bass applied to the signal using a trimmer on the PCB. This module also has a flip panel with descriptions per mode on each side. Both modes share a manual TRIG button to execute the drum sound, a TRIGGER INPUT and a signal OUTPUT. Released under cc-by-sa-3.0 license: ​ Pichenettes Mutable Instruments prev Up next

  • Natural State

    natural state / dual envelope ducking filter / 16 HP ⇣ Natural State consists of two 24db filters with a CV decay envelope and an internal LFO. It is designed to filter two waveforms in the most ear-friendly way possible to create natural and organic sounding grooves and soundscapes. 1/3 key features Dual Filter Dual Envelope Decay CV Filter CV Filter Ducking Internal LFO normalized to Filter CV Envelope Output Slider Pots Wrong Polarity Protection specs & downloads width: 16 HP depth: 28 mm power: 81 mA @ +12V / 55 mA @ -12 documentation videos description / manual Each of the two channels has a DECAY slider that adjusts the decay length, an OPEN slider that adjusts the filter cutoff, and a FORCE slider that adjusts the amount of decay CV that affects the filter. The STRIKE input takes any CV from +1 volt and triggers the decay envelope. Both the decay and the filter cutoff can be controlled via the CV inputs DECAY and CTRL. Attenuators can be used to change the strength of the applied CV. The decay attenuator also acts as a DECAY CV offset. A subtle internal LFO can be routed to the filter cutoff, which is attenuated with the CTRL controls. The LFO range is rather slow to create smooth filter sweeps. The resonance of the individual filters can be changed with the PEAK potentiometers. ​ When the DUCK control is turned to the right, the decay of the left channel increasingly suppresses the signal of the right channel, creating a ducking effect. ​ Both decay envelopes are also routed to the ENV sockets for further external processing. NATURAL STATE QUICK START GUIDE: NATURAL_STATE_QUICK_START .pdf Download PDF • 764KB prev Up next

  • Fay V2

    fay v2 / fader, vca, overdrive, decay / 24 HP ⇣ FAY Combines four functional units in a tiny 4HP Module. It consists of a Fader, a VCA, an Overdrive and a Decay/Release Envelope. 1/3 key features Manual Fader/Mixer/Switch Voltage controlled amplifier Decay or Release Envelope Overdrive Functionality Volume Control LED indication Wrong polarity protection ​ specs & downloads width: 4 HP depth: 28 mm power: 25 mA @ +12V / 10 mA @ -12V documentation videos description / manual If you insert two audio sources into the jacks IN A and IN B you may fade between both sources manually using the potentiometer on the bottom. This way you can either mix two waveforms or switch between them.The signal is directly routed to the VCA. Here you can control the volume or amplitude of the audio either manually or via control voltage using the CV jack. If there is a trigger signal at the TRIG input you will be able to control the VCA with the internal decay or release envelope (selectable via jumper). Simply insert a trigger signal into the TRIG jack and use the potentiometer below the LED to control the decay length. The LED indicates the current state of voltage. The envelope time can be set to 10ms or 3s via jumper. Thus is can be very snappy for percussion purposes. The decay or release envelope is also provided at the ENV OUT jack to control external modules via CV. Additionally there is an OVERDRIVE option that may be activated via switch. It is also affected by the CV input and shapes the sound to a certain extend. The OVERDRIVE is fairly subtle and more audible on short decay times. Nevertheless it really crunches up some simple waveforms. In contrast to the first version FAY Mk2 has an improved PCB layout and now only consists of one PCB to solder. prev Up next

  • Toolbox

    toolbox / multi-function unit / 6 HP & 22 HP ⇣ TOOLBOX is your HP-friendly Swiss Army knife, incorporating the most essential functions for your modular system. 1/6 key features 8 Functions in 1 Module Combine Functions via Normalization of Inputs Table Top Case friendly Wrong polarity protection specs & downloads width: 6 HP & 22 HP depth: 25 mm power: 42 mA @ +12V / 38 mA @ -12V documentation videos description / manual Fader 2-Channel Mixer Swap (exchange the destination of one or two sources via switch) On/Off Switch Attenuverter (unipolar/bipolar via switch) 1 to 3 Buffered Multiple Inverter Volume Control ...and any combination of these as the Fade inputs are normalized to Swap and the 1 to 3 Attenuverter/Multiple/Inverter. You can use it for audio as well as for CV signals. Pots and Switch are located on the bottom side for for easy use in table top cases. This module is availbable in 3U and 1U! prev Up next

  • Chiasso

    chiasso v2 / analog fm drum synth / 14 HP ⇣ CHIASSO V2 stands as an exceptional oscillator, perfect for generating dynamic Techno sounds that consistently captivate through each knob adjustment. In its V2 iteration, it retains the same exceptional sound foundation found in V1. However, V2 introduces innovative enhancements like CV decay inputs and an added noise source for oscillator A, promising even more sonic possibilities. 1/3 key features Two Analog VCOs Two LFOs SQUARE and TRIANGLE Waveforms for OSC and LFO Cross Modulation CV Decay Fade Potentiometer to adjust the Oscillator Mix Trigger and Pitch Normalization Wrong Polarity Protection specs & downloads width: 14 HP depth: 28 mm power: 55 mA @ +12V / 35 mA @ -12V documentation videos description / manual The module has two oscillators that can generate square or triangular waveforms that you can seamlessly crossfade with the WAVE potentiometers. Each oscillator has its own CV decay envelope, a pitch potentiometer and can be triggered with a trigger signal patched to the left TRIG input as well as individually via the left and right TRIG inputs. A fade potentiometer offers the possibility to manually fade between both oscillators to adjust the mix. Noise can be added to the left oscillator A to make it a little dirtier. ​ There are PITCH CV inputs with attenuators for each voice which, although they don´t track exactly 1 V/OCT, are very useful for changing the mood of each signal to create very organic and moving sounds. The audio output of each side is normalised to the PITCH CV input of the opposite side. The left side is connected after the VCA and the right side before the VCA to achieve different types of cross-modulations and to apply modulation according to incoming trigger signals. ​ In addition, the module has two individual LFOs with square or triangular waveforms that can be fed to the oscillators for further frequency modulation synthesis. Both LFOs have an attenuator to adjust the strength of the modulation and a RATE potentiometer to change the speed of the LFO cycle. ​ The signals of the two oscillators are mixed and output at the OUT socket. prev Up next

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