CV Mod1.5.3 - App Store

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

Version History iOS 14+ Ableton Link network compatibility fix 1.5.3 10/02/2021 - Receive start/stop messages from Ableton Link
- Replaced MIDI connections list with a single, stable MIDI input (multi-device MIDI support wasn't working right anyway!)
- Duophonic mode EG fix (release was being fired on the second key press)
- Drag up or down on the tempo field in the settings to quickly change the tempo
- Mac M1 compatibility fixes 1.5.2 12/30/2020 - Fixed pulse stuttering during tempo changes when oscillators are in trig and sync modes
- Mac M1 compatibility fix 1.5.1 12/28/2020 Audiobus 3 and Inter-app audio support (finally) 1.5.0 12/08/2020 - New MIDI connections view makes it easy to manage connections for available apps and devices
- Fixed Ableton Link tempo rounding issue
- Fixed incoming MIDI clock sync
- Fixed sync issue when using both oscillators as a trigger pulse
- Oscillators can be started and stopped via MIDI transport commands (choose "TP" in the MIDI connections view to enable) 1.4.0 11/11/2020 Fixed issue that was not allowing multiple triggers to be independent of one another 1.3.1 08/14/2020 - Fixed issues with receiving MIDI from external hardware
- Fixed landscape layout issues with wave table grid
- Performance improvements and crash mitigation 1.3.0 12/08/2019 Landscape Mode
- You can now use CV Mod in Landscape mode. Certain features will still work best in portrait mode on smaller devices. Landscape mode is best suited for larger phones and tablets. 1.2.4 12/03/2019 Ableton Link Support 1.2.3 10/04/2019 Envelope looping can now be done on its own without syncing to any source
Identify "CV Mod" as a MIDI endpoint for easier connectivity with other apps
Display any existing CC assignments in the MIDI Learn menu
Clear all CC assignments feature 1.2.2 04/11/2019 Oscillator frequency can now be modulated by the envelope generators
Envelopes can be inverted
Halt all threads when the app is backgrounded and background audio is turned off 1.2.1 09/05/2018 Each oscillator now has its own envelope generator, which can be synchronized to subdivisions of the current tempo or the rate of either oscillator
When an oscillator is in trigger pulse mode, it can now be synchronized to subdivisions of the current tempo or to the rate of the other oscillator
Wave table editor has been consolidated down to one screen with simple buttons to toggle between the two wave tables 1.2.0 08/27/2018 Three new settings per oscillator: Drive, Sync, and Trig
Drive increases the oscillator's amplitude by a factor of 10. Please be careful when using headphones!
Sync allows you to sync each oscillator individually to the internal or external tempo
Trig overrides the current oscillator's settings and sends a trigger pulse that is in sync with the other oscillator's frequency (hint: use the fine tune control to alter the rate of the trigger pulse) 1.1.1 08/01/2018 Better color contrast and usability improvements
New power button provides simple play/pause functionality (off by default during app launch)
Layout fixes for iPhone 5 and iPhone 6 running older versions of iOS 1.1.0 07/16/2018 Quick access button for assigning an oscillator's rate to keyboard input
Current state is saved upon leaving or closing
Save sessions as presets
Save wave tables
Smoother transitions when app is running in the background
Minor bugfixes 1.0.5 07/14/2018 Main control view layout optimization for different device sizes
Clear indicators for which parameter is being edited 1.0.4 07/11/2018 1.0.3 07/07/2018