CV Mod 4+

LFO and Oscillator CV Module

Steven Connelly

Designed for iPad

    • 3.9 • 7 Ratings
    • $1.99



CV Mod is a 2 LFO/VCO Oscillator Module meant to be used with modular or semi-modular synth hardware. Simply connect the headphone output of your iPhone or iPad to one or more CV or audio inputs on your hardware.

To get the most out of this module, use a stereo breakout cable to separate the left and right audio channels. Just like that, you now have 2 additional LFOs or full range oscillators added to your rig!

CV Mod can also send out signals via a connected DC-coupled audio interface. With Audiobus 3 and Inter-app audio support, you'll have an easier time routing CV Mod's outputs to wherever you need them to go.

In the spirit of modular synthesis, you have complete control over each oscillator’s parameters via external MIDI. You can also modulate one oscillator’s frequency and phase with the other oscillator’s rate and depth controls.

With two drawable wave table editors, you can create whatever crazy wave forms you like, unleashing a vast sea of possibilities. Instant grit!

Intuitive controls via the main faders, XY pad, or MIDI CC make this an incredibly easy way to add more modulation and sound sources to your gear. Download now and have some good old-yet-new-fashioned creative fun!

Key Features:
2 Oscillators that function as LFOs or sound sources with 5 frequency ranges: 1 Hz, 4 Hz, 40 Hz, 120 Hz, and VCO mode (full range). This wide set of ranges allows for ultra slow ambient filter sweeps and rip roaring ring-mod madness

Choose from 8 different waveforms: Sine, Triangle, Sawtooth, Reverse Sawtooth, Square, Random, and two user defined shapes

Wave Table grid editor allows you to draw 2 custom waveforms

Each oscillator has its own envelope generator, which can be synchronized to subdivisions of the current tempo or the rate of one of the oscillators

Multi-touch control of each oscillator’s rate, depth, and phase with easy to use faders

Fine tuning control of each oscillator, + or - one octave

Separate glide controls for each oscillator, with a configurable maximum glide time of 120 seconds!

MIDI Keyboard control of an oscillator’s frequency allows you to play notes and use this app as an additional sound source in VCO mode

Duophonic mode allows you to play two notes at once when both oscillators are controlled by MIDI keyboard in VCO mode

XY Pad allows you to control up to 3 parameters, with the Z-axis mapped to touch pressure (if your device supports it)

Tempo Sync feature that constrains each oscillator’s rate to subdivisions of the current tempo, when operating in one of the LFO modes

Rich MIDI implementation allows you to control all oscillator settings via MIDI CC with MIDI learn. In addition, you can control each oscillator’s rate and the overall depth via pitch wheel, mod wheel, velocity, aftertouch, and note values (key tracking)

Cross modulation capabilities allow you to modulate one oscillator’s phase and frequency with the rate and depth of the other oscillator

Turn either oscillator into a trigger pulse, which can be synchronized to subdivisions of the current tempo or the rate of the other oscillator

Ability to save presets and wave tables

Other settings include:
Tempo override from external MIDI clock or via Ableton Link
Ableton Link integration
Pitch bender range control (maximum of 2 octaves)
Background audio mode
Oscillator pan controls: each oscillator can be panned to the left channel, right channel, or center
Aftertouch sensitivity control (allows you to take it easy on those older keybeds)
Bit depth resolution reduction controls for each oscillator, which opens up even more possibilities

What’s New

Version 1.5.3

iOS 14+ Ableton Link network compatibility fix

Ratings and Reviews

3.9 out of 5
7 Ratings

7 Ratings

Oceans in space ,

Great cv app

This is great; just a wee bit confusing... once you get it it’s ace!

Rasprague ,

Great utility app

Future feature request: EG direct output, not just as a mod source to LFOs ,

No way to contact the developer

This app is broken. The link for app support links to his blog but there’s no obvious way to contact them from there.

Developer Response ,

Hi there. My contact info is in the user guide. (Settings icon -> “Guide”) Please email me at eokuwwy (at) gmail (dot) com and let me know what the issue is. I’ll be more than happy to fix it! Thanks.

App Privacy

The developer, Steven Connelly, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

You Might Also Like