MATRIXSYNTH: CVquencer for iOS

Tuesday, December 17, 2019

CVquencer for iOS

Published on Dec 12, 2019 3AlanC

"CVquencer controlling a Pittburgh Modular system via an Expert Sleepers ES-8 DC-coupled audio interface."

Published on Dec 11, 2019 3AlanC

"Using CVquencer to play some classic sequences."

CVquencer calibrating an analog synthesizer

Published on Dec 17, 2019 3AlanC

"CVquencer is using a MOTU UltraLite Mk4 to control a Dreadbox Erebus with CV/Gate. Two outputs from the UltraLite are connected to the CV and Gate inputs of the Erebus and the audio output from the Erebus is connected to one of the UltraLite's inputs. The Erebus is set to play a basic triangle wave from a single oscillator to give the best result during calibration. CVquencer generates a series of control voltages and measures the frequencies the Erebus produces: it uses this information to create a tuning table that allows it to output accurate control voltages."

Available on the App Store here for $9.99.

"CVquencer is a step sequencer that can control analog synthesizers using CV/Gate via a suitable audio interface, output MIDI to external instruments, control synthesizer apps running on your iPad, or run stand-alone using its internal sample-based synthesizer.

CVquencer has four layers, each consisting of 16 steps. Each step has an eight stage gate sequencer controlling how it will repeat: individual repeats can be set to a rest, a note or tied to the next repeat. Note length, timing, velocity, modulation, playback probability and glide can all be set per step.

Each layer has its own clock divider and playback direction. Combined with the step repeats this allows CVquencer to create patterns that are far more complex than a typical step sequencer.

• To use CV/Gate an appropriate DC-coupled audio interface and suitable cables are required.
• CVquencer does not function as an Audio Unit plugin since it requires multi-channel access to an audio interface when generating CV/Gate signals."

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