VAPolyMk5

VAPolyMk5 is bitimbral polyphonic synthesizer. Main feature of Mk5 is re-designed step sequencer which contains one note sequencer and three modulation sequencers. Oscillator feature hard sync and through zero FM. Low pass Filter is modeled on cascaded OTA -24dB per octave low pass filter circuit.

Each synthesizer consists of three oscillators, resonant low pass and high pass filter, amplifier, three envelope generators, two LFO and key tracking. Two synthesizers can be configured as layer or split. Mk5 also features global LFO, output morphing, classic ring modulator and easy target assignment for mod wheel and aftertouch.

VAPolyMk5 operates as a stand alone or as an AudioUnit Extension (AUv3) for iPhone, iPad and Mac. Stand Alone supports Ableton Link, MIDI and audio file export. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac.

Main Features

Bi-timbral Polyphonic Synthesizer

Oscillators feature hard sync and through zero FM.

Low pass Filter is modeled on cascaded OTA -24dB per octave low pass filter circuit.

Re-designed step sequencer

Re-designed offset control

Improved output morphing.

Improved classic ring modulator.

Improved key tracking

Easy target assignment for mod wheel and aftertouch

Maximum 8 voice polyphony. it depends on performance of the device it is running.

Built-in effects and piano roll sequencer.

Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC)

Support Audio Unit Extension (AUv3).

Support MIDI 2.0. Support Foot Pedal and Per Note Control.

Support Ableton Link, Bluetooth MIDI, MIDI In / Out.

Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms.

General Improvements

Support MIDI Foot Pedal (CC#11, CC#64)

Support MIDI2.0 Per Note Control Messages

MIDI CC Settings are saved. It will be recovered when the app launched in the next time.

UI Color can be selected from black, navy, gray or blown.

Adjustable text size for title of controls

Factory Preset 208

Synth CH Preset 256

Effect Preset 40

Default & Macro 8

System Requirements

iOS 17.0 or later

macOS 14.0 or later

Devices with Apple Silicon are recommended. A13 Fusion or above is highly recommended.

AudioUnit Extension (AUv3) requires host application which support AudioUnit Extension.

AudioUnit Extension is supported by Apple Logic and Apple Garage Band on iOS and macOS. For any other DAW, it depends on the application and some of them don’t support AudioUnit Extension.

Sound may be distorted if CPU of the device doesn't have enough power. If it happens reduce number of voices or enable Low Power Mode in setting panel.

App launches in Low Power Mode in the first time on device with iOS earlier than iOS 18.0 as mono-timbral.