VAPolyMk5
Bi-timbral Polyphonic Synthesizer















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.
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.
Synthesizer
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.
Effects
The Effects include delay, chorus, flanger, reverb, eq and compressor.
Sequencer
The sequencer features piano roll and parameter automation editor to program 16 bar pattern per clip.
Main Features
Synthesizer
- Bitimbral 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.
Sequencer
- 16 bar patterns per clip. Total 8 clips.
- Piano Roll and Parameter automation.
Audio Export
- Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC)
Others
- Support MIDI 2.0. Support Foot Pedal (CC#11, CC#64) and Per Note Control.
- Support iCloud Drive.
- Support Ableton Link, Bluetooth MIDI, MIDI In / Out.
- Support Audio Unit Extension (AUv3)
- Works on iPhone, iPad and Mac.
- UI Color can be selected from black, navy, gray or blown.
- Adjustable text size for title of controls
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.
- *Apple, Mac and GarageBand are trademarks of Apple Inc., registered in the U.S. and other countries.
- *Ableton and Link are trademarks of Ableton AG.
- *All products, companies and standard names are trademarks or registered trademarks of their respective holders.
- * Ableton Link requires Local Area Network connections.
Specifications
Synthesizer
Synthesizer
- Bi-timbral Polyphonic Synthesizer
Oscillator 1, 2 & 3
- Continuously variable wave shape (triangle, sawtooth, square)
- Pulse width for square
- Tuning +/- 24 semitones
- Fine tuning +/- 50 cents
- Frequency Modulation (Exponential)
- Pulse Width Modulation
- Cross Modulation (Through Zero FM, oscillator 1 to oscillator 2 & 3)
- Hard Sync (oscillator 1 to oscillator 2 & 3)
- Transpose: +/- 24 semi tones.
- Master Tune: +/- 50 cents
- Key Sync: On/Off
- Transpose: +/- 24 semi tones.
- Detune: +1 cent
Noise Generator
- Noise: Pink or White
Filter
- Low pass filter: -12 dB per octave, -24 dB per octave
- High pass filter: -12 dB per octave
- Frequency modulation: ADSR, LFO, Key Follow
Amplifier
- Envelope: ADSR / Gate
- Amplitude modulation by LFO
- Pan modulation by LFO
LFO
- Wave shape: sine, saw, down saw, square, triangle, random
- Frequency Range: From 0.04Hz to 42.2Hz
- Amplitude modulation by ADSR envelope
- Polyphonic (LFO2)
- Frequency Modulation by ADSR envelope. (LFO2)
ADSR Envelope
- Attack time: From1ms to 6 sec
- Decay time: From 1ms to 10 sec
- Sustain level: From 0 to 100%
- Release time: From 1ms to 10 sec
- Delay time: From 0ms to 10 sec
- Key Follow: From 100% to 25% (envelope length)
Controllers
- Modulation Wheel, Pitch Bend Wheel, Ribbon Control
Morph
- Stereo Width: From 0 to 100 %
- Mix: From 0 to 100 %
- Mod: From -100% to 100 %
Ring Modulator
- Attack Time: From 3 ms to 530 ms
- Decay Time: From 7 ms to 4.50 Sec
- Speed: From 0.2 Hz to 220.0 Hz
- Depth: From 0 to 100 %
- Mod: From 0 to 100 %
Arpeggio
- Type: Up, Down, Up&Down. Random
- Frequency: From 1 Hz to 20 Hz
Portamento (Glide)
- Time: From 10 ms to 10 second
Step Sequencer (Analog Style)
- 8 Steps
- Sample & Hold
- Clock Frequency: From 1 Hz to 20 Hz
- Note sequencer and 3 Modulation sequencer
Sequencer (Piano Roll)
- Loop Length: from 1 bar to 16 bars
- Clip: 8 clips
- Tempo: from 20 BPM to 999 BPM
- Host Sync: On and Off
Effect
Delay, Chorus, Flanger, Reverb, EQ and Compressor
*Appearance and specification of products are subject to change without notice.
Release Note
Version 1.0
- Initial release
Version 1.0.1
- Fixed a problem that frequency for envelope of CV Sequencer Mod Signal is calculated incorrectly.