LFO

LFO stands for low frequency oscillator. Oscillators are one of the most important basic building blocks of synthesizers, because most of the time they are generating the sounds that you hear. Oscillators repeatedly fluctuate back and forth between positive and negative voltages, meaning that they are bipolar signals. These fluctuations are called cycles, and the size of fluctuation is referred to as amplitude. The rate or speed of these cycles is called the frequency, which is measured in Hertz, or cycles per second. If the frequency is fast enough, above 20 Hz, it becomes audible to the human ear. Low frequency oscillators generally inhabit the subsonic range below what humans are able to hear, but most can be sped up enough to be audible.

LFOs are commonly used as sources of modulation in a Eurorack synthesizer to make a parameter rise and fall. For example you can use it to control the pitch of an oscillator, the cutoff point of a filter, or the amplitude of a sound.

This brings up an important fact that is a big part of what makes modular synths so exciting. Audio can be used as a control source and some CV can be audible. A big part of what makes a Eurorack system fun is experimenting with connecting things and discovering what happens. Just be sure you’re connecting outputs to inputs and inputs to outputs!

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  • Intellijel Dr. Octature II (VCO/LFO)
    Intellijel Dr. Octature II (VCO/LFO)

    INTELLIJEL DR. OCTATURE II (VCO/LFO)4-POLE LOW PASS FILTER AND OCTATURE SINE WAVE VCO/LFOJust like the original Dr. Octature the basis of the module is a 4-pole lpf inspired by the classic “cascaded ota” design, but realized…

    € 249,00
  • Thorn.audio - VC LFO
    Thorn.audio - VC LFO

    Thorn.audio - VC LFO

    Fully voltage controllable Eurorack format, externally syncable, 16 waveform low frequency oscillator with built-in VCA and sample & hold.
    Powered by a socketed VCLFO10 IC from Electric Druid.Suitable for…

    € 199,00
  • Doepfer A-141-2 Voltage Controlled Envelope Generator VCADSR / VCLFO
    Doepfer A-141-2 Voltage Controlled Envelope Generator VCADSR / VCLFO

    Module A-141-2 is the successor of the obsolete former VCADSR module A-141. Compared to the A-141 a lot of improvements and expansions have been added:
    common control voltage input for all time parameters (A/D/R), range switch for…

    € 155,00
  • MALEKKO – AD/LFO
    MALEKKO – AD/LFO

    MALEKKO – AD/LFO6-CHANNEL ENVELOPE AND LFO GENERATORThe AD/LFO is a digital powerhouse of envelopes and low frequency oscillators, totaling 6 independent function generators plus 2 SUM outputs. Each bank of three can be 10 times…

    € 249,00
  • Doepfer A-143-1 Complex Envelope Generator / Quad AD-Generator / Quad LFO
    Doepfer A-143-1 Complex Envelope Generator / Quad AD-Generator / Quad LFO

    Overview: Module A-143-1 is a complex envelope generator that consists of Attack/Decay generators. For the complex envelope generator the four units are daisy-chained, i.e. the preceeding unit triggers the following unit. The four…

    € 230,00
  • Doepfer A-143-4 Quad VCLFO/VCO
    Doepfer A-143-4 Quad VCLFO/VCO

    Module A-143-4 is a fourfold voltage controlled low frequency oscillator (LFO). As the frequency range includes moderate audio frequencies it can be used as a four-fold VCO too.

    ∙ four independent VCLFOs/VCOs with triangle…

    € 280,00
  • Doepfer A-143-9 Voltage Controlled Quadrature LFO/VCO
    Doepfer A-143-9 Voltage Controlled Quadrature LFO/VCO

    Module A-143-9 is a derivative of our planned thru-zero quadrature VCO. It is a voltage controlled sine LFO with 4 outputs. The phase shift between the outputs is 90 degrees. The sine shifted by 90 degrees is also called cosine,…

    € 95,00
  • Doepfer A-146 Low Frequency Oscillator 2 / LFO 2
    Doepfer A-146 Low Frequency Oscillator 2 / LFO 2

    Module A-146 (LFO 2) is a Low Frequency Oscillator, which produces periodic control voltages over a wide range of frequencies.
    The LFO can be used as a modulation source for a series of modules (for instance pulse width and/or…

    € 65,00
  • Intellijel Rubicon (thru zero fm triangle core vco)
    Intellijel Rubicon (thru zero fm triangle core vco)

    INTELLIJEL RUBICON THRU ZERO FM TRIANGLE CORE VCORubicon main rev 008

    Not long after the David Dixon finished the Dixie design he began working on a totally novel approach to implementing tzfm (thru zero frequency modulation).…

    € 349,00
  • Make Noise DPO
    Make Noise DPO

    Make Noise DPO

    A dual Voltage Controlled Oscillator designed for generating complex waveforms. Expanding on the classic arrangement of Primary and Modulator Oscillators, the DPO has both of the VCOs operable as complex signal…

    € 675,00
  • Make Noise Function (black & gold)
    Make Noise Function (black & gold)

    Make Noise Function (black & gold version)

    FUNCTION is part of the MATHS family of control voltage utility modules. It is a small analog computer designed for solely musical purposes.

    ∙ Generate a variety of linear,…

    € 179,00
  • Make Noise MATHS (black & Gold)
    Make Noise MATHS (black & Gold)

    Make Noise MATHS (black & Gold version)

    MATHS is an analog computer designed for musical purposes. Amongst other things, it will allow you to:

    ∙ Generate a variety of linear, logarithmic, or exponential triggered or continuous…

    € 328,00
  • Discontinued

    Mutable Instruments Peaks (EOL)
    Mutable Instruments Peaks (EOL)

    Mutable Instruments Peaks (EOL)

    OverviewPeaks provides 4 different functions in a small 8-HP package. Their common point? They are all about generating an audio or CV signal in response to a trigger, and are all focused on…

    € 179,00
  • Mutable Instruments Tides (2)
    Mutable Instruments Tides (2)

    Mutable Instruments Tides (2) New (2018) versionTides got a little refresh. New quad output modes, hardware matching the most recent releases. (Sept 2018)

    Tidal modulatorOverviewTides is all about waves that go up and down, from…

    € 229,00
  • Verbos Electronics - Voltage Multistage
    Verbos Electronics - Voltage Multistage

    Verbos Electronics - Voltage Multistage

    In theory, a sophisticated enough control voltage source can replace all of the control voltage sources in a modular system. That includes saw, square, pulse, triangle LFOs, AR, AD, ADSR,…

    € 619,00
  • 4ms Quad Pingable LFO (QPLFO)
    4ms Quad Pingable LFO (QPLFO)

    4ms Quad Pingable LFO (QPLFO)

    The Quad Pingable LFO is a compact, playable four-channel tap-tempo, clock-syncable LFO with variable skew and reset.

    The QPLFO is designed to be useful in small portable systems that require…

    € 285,00
  • 4ms Pingable Envelope Gen. (PEG)
    4ms Pingable Envelope Gen. (PEG)

    4ms Pingable Envelope Gen. (PEG)

    The Pingable Envelope Generator (PEG) from 4ms is a dual envelope generator whose envelope lengths are set by incoming clocks or "pings".

    The PEG has full CV control of envelope shape, skew, and…

    € 345,00
  • Doepfer A-147-2V (vintage black edition)
    Doepfer A-147-2V (vintage black edition)

    Doepfer A-147-2V (vintage black edition) Voltage Controlled Delayed Low Frequency Oscillator / VCDLFO

    Module A-147-2 is the successor of the VCLFO A-147 but offers much more features than the predecessor. The module is made of…

    € 140,00
  • Flame Quad CV Recorder
    Flame Quad CV Recorder

    Flame Quad CV Recorder

    Four-channel recorder/looper for recording and playing back control voltages or potentiometer movements in a very wide frequency range, from very slow to fast. The output is a smoothed voltage without…

    € 409,00
  • AJH MiniMod Dual LFO + VCA black
    AJH MiniMod Dual LFO + VCA black

    AJH MiniMod Dual LFO + VCA black

    Dual LFO and VCA module 10HP wide. - This has two LFO's each with variable waveshape. LFO 1 has the addition of a low range and a Sync input. It includes a DC coupled VCA, the input of this is…

    € 309,00
  • AJH Mega-Phase 12 black
    AJH Mega-Phase 12 black

    AJH MEGA-PHASE 12 BLACKhis is based on the vintage EH Smallstone phaser - which was 4 stages. So all of the JMJarre style Equinoxe sounds are readily available.
    However, it has been expanded to 12 stages, with some unique features…

    € 419,00
  • 2hp - LFO Black (LFO with morphable waveforms)
    2hp - LFO Black (LFO with morphable waveforms)

    2hp - LFO Black (LFO with morphable waveforms)

    Low frequency oscillator with smooth morphing between sine, triangle, sawtooth, and square waveforms. Four alternative waveforms accessible including stepped triangle, FM sine, ramp,…

    € 159,00
  • ReBach - Catch LFO
    ReBach - Catch LFO

    ∙ Eurorack Low Frequentie Oscillator.
    ∙ Modulatable Tri and Pulse wave.
    ∙ Two oscillators (Second oscillator modulates the first).
    ∙ plm 0.2hz to 25hz
    ∙ skiff-friendly.
    ∙ Size: HP6 (W30mm H128.5mm D26mm).
    ∙ +12V 8mA / -12V 7mA

    € 65,00
  • Eowave Weather Drones
    Eowave Weather Drones

    Eowave Weather Drones

    The Weather Drones is an all in one drone voice for eurorack modular.

    It features a triangle based digital oscillator and a lowpass filter. Furthermore it offers three modulation sources: LFO with square…

    € 199,00
  • Klavis Twin Waves MKII
    Klavis Twin Waves MKII

    Klavis Twin Waves MKII

    Voltage-controlled Dual VCO/LFO/random

    Two oscillators independently set as VCO, LFO, or random generator
    Features in VCO mode:
    V/Oct tracking over 10 octaves
    Through zero and linear FM
    Sub-octave…

    € 269,00
  • Buchla & Tiptop Audio 281t - Quad Function Generator
    Buchla & Tiptop Audio 281t - Quad Function Generator

    Buchla & Tiptop Audio 281t - Quad Function Generator

    The 281t Quad Function Generator comprises four function generators organized in two pairs. All four generators can operate independently or can be linked in pairs to generate…

    € 209,00
  • Doepfer A-147-5V  Quad VCLFO (black)
    Doepfer A-147-5V Quad VCLFO (black)

    Doepfer A-147-5 Quad VCLFO (black)

    Module A-147-5 contains four voltage controlled low frequency oscillators (VCLFO) with triangle waveform outputs. All LFOs share a common frequency control. Each of the LFOs 2, 3 features a…

    € 120,00
  • Control!

    Bela - Gliss Modular Touch Control
    Bela - Gliss Modular Touch Control

    155

    € 155,00 € 149,00

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