Glow in the dark synthesis. Phosphor 3 is a dual-oscillator additive synthesizer that puts the raw building blocks of sound at your fingertips. Draw, randomize, or select up to 64 harmonics per oscillator, then shape them...
Glow in the dark synthesis. Phosphor 3 is a dual-oscillator additive synthesizer that puts the raw building blocks of sound at your fingertips. Draw, randomize, or select up to 64 harmonics per oscillator, then shape them with envelopes, LFOs, cross-modulation, and a flexible mod matrix. Originally inspired by the alphaSyntauri, a rare digital additive synth from the early 1980s, Phosphor 3 takes that concept far beyond its origins with modern MPE expression, polyphonic modulation, and a full effects engine. --- Additive Oscillators Two identical additive oscillators, each with up to 64 individually editable harmonics. Start from classic shapes: sawtooth, triangle, square, or draw your own harmonic spectrum directly in the partial editor. The intelligent randomizer generates musically useful timbres with variable rolloff, density, and formant peaks, so every click produces something worth exploring. Choose 16, 32, or 64 partials per oscillator to balance complexity against CPU. Each oscillator has independent level, pan, transpose, fine tune, a noise generator with lo-fi downsampling, and cross-modulation (FM) for pushing timbres into harsher, more complex territory. Modulation Two ADSR envelopes with adjustable attack, decay, and release curves. Two LFOs with four waveforms (pulse, sine, saw, random), tempo sync, and the option to run polyphonically, a separate LFO per voice, or globally. An 8-source modulation matrix routes velocity, pressure, pitch bend, mod wheel, CC 74, triggered random, and both LFOs to destinations across the oscillators and effects. Effects Stereo delay with independent left/right time, feedback, and cross-channel feedback for ping-pong and rhythmic patterns. Tempo sync locks delay times to your DAW. Dual band-pass filters after the delay let you carve the wet signal into resonant, frequency-specific textures. Expression Full MPE support with per-note pitch bend, pressure, and slide across 16 polyphonic voices. Mono legato and mono retrigger modes with adjustable portamento. Unison mode for thick, detuned stacks. A scrollable 128-key on-screen keyboard with velocity from touch position, pitch bend from horizontal drag, and channel pressure from vertical drag, no hardware controller required. Tuning MTS-ESP client support for real-time microtuning from any MTS-ESP master. TUN file import for custom scales. Standard 12-TET with adjustable A4 reference. Supports AUv3 for use in GarageBand, AUM, Cubasis, and other AUv3-compatible hosts.
Previous Versions
Here you can find the changelog of Phosphor 3 since it was posted on our website on 2021-12-23 07:05:44.
The latest version is 3.1.10 and it was updated on 2026-10-18 15:12:27. See below the changes in each version.
Phosphor 3 version 3.1.10
Updated At: 2026-10-17
Changes: Version History > > Preset Manager Improvements - the preset manager has been updated to the latest version, and now has favorites.
> > Keyboard Update - the on-screen keyboard has been updated to our latest version; scrub the scrollbar horizontally to move the keyboard, and scrub the scrollbar vertically to change the key size. In addition, there is an on-screen indicator of MPE pitch bend.
> > Random Partial Generator Improvement - The algorithm by which the partials are filled when hitting the random button has been improved, resulting in far more usable outcomes.
> > General optimizations, improvements, and bug fixes. Built to all latest SDKs and APIs. 3.1.10 Mar 30 > > New preset browser.
> > New "rich info" about screen
> > Many small bug fixes and optimizations, and general updating of all SDKs and APIs. 3.1.8 09/01/2024 Just a maintenance update, to make sure everything is current. 3.1.6 11/16/2023 > > Audio/MIDI settings button didn't work in standalone version. Fixed. 3.1.5 12/04/2022 All file and button operations related to iOS 16 have been fixed and fully tested. Note that you can not import TUN files, or presets (or zips of presets) directly from iCloud Drive. You need to move them to "On My iPad" or some other folder such as Dropbox. 3.1.4 12/02/2022 NEW IN 3.0.9:
1. When you have the modulation assign window open for a slider, and touch the on-screen keyboard, you can now play without closing the mod assign window.
2. MPE mode now works correctly in hosts that support it.
3. Minor bug fixes and optimizations. 3.0.9 08/06/2020 3.0 05/19/2020
Phosphor 3 version 3.1.10
Updated At: 2026-09-04
Changes: Version History This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
> > Preset Manager Improvements - the preset manager has been updated to the latest version, and now has favorites.
> > Keyboard Update - the on-screen keyboard has been updated to our latest version; scrub the scrollbar horizontally to move the keyboard, and scrub the scrollbar vertically to change the key size. In addition, there is an on-screen indicator of MPE pitch bend.
> > Random Partial Generator Improvement - The algorithm by which the partials are filled when hitting the random button has been improved, resulting in far more usable outcomes.
> > General optimizations, improvements, and bug fixes. Built to all latest SDKs and APIs. 3.1.10 Mar 30 > > New preset browser.
> > New "rich info" about screen
> > Many small bug fixes and optimizations, and general updating of all SDKs and APIs. 3.1.8 09/01/2024 Just a maintenance update, to make sure everything is current. 3.1.6 11/16/2023 > > Audio/MIDI settings button didn't work in standalone version. Fixed. 3.1.5 12/04/2022 All file and button operations related to iOS 16 have been fixed and fully tested. Note that you can not import TUN files, or presets (or zips of presets) directly from iCloud Drive. You need to move them to "On My iPad" or some other folder such as Dropbox. 3.1.4 12/02/2022 NEW IN 3.0.9:
1. When you have the modulation assign window open for a slider, and touch the on-screen keyboard, you can now play without closing the mod assign window.
2. MPE mode now works correctly in hosts that support it.
3. Minor bug fixes and optimizations. 3.0.9 08/06/2020 3.0 05/19/2020
Phosphor 3 version 3.1.10
Updated At: 2026-08-23
Changes: Version History This update from Apple will improve the functionality of this app. No new features are included.
> > Preset Manager Improvements - the preset manager has been updated to the latest version, and now has favorites.
> > Keyboard Update - the on-screen keyboard has been updated to our latest version; scrub the scrollbar horizontally to move the keyboard, and scrub the scrollbar vertically to change the key size. In addition, there is an on-screen indicator of MPE pitch bend.
> > Random Partial Generator Improvement - The algorithm by which the partials are filled when hitting the random button has been improved, resulting in far more usable outcomes.
> > General optimizations, improvements, and bug fixes. Built to all latest SDKs and APIs. 3.1.10 Mar 30 > > New preset browser.
> > New "rich info" about screen
> > Many small bug fixes and optimizations, and general updating of all SDKs and APIs. 3.1.8 09/01/2024 Just a maintenance update, to make sure everything is current. 3.1.6 11/16/2023 > > Audio/MIDI settings button didn't work in standalone version. Fixed. 3.1.5 12/04/2022 All file and button operations related to iOS 16 have been fixed and fully tested. Note that you can not import TUN files, or presets (or zips of presets) directly from iCloud Drive. You need to move them to "On My iPad" or some other folder such as Dropbox. 3.1.4 12/02/2022 NEW IN 3.0.9:
1. When you have the modulation assign window open for a slider, and touch the on-screen keyboard, you can now play without closing the mod assign window.
2. MPE mode now works correctly in hosts that support it.
3. Minor bug fixes and optimizations. 3.0.9 08/06/2020 3.0 05/19/2020
Phosphor 3 version 3.1.8
Updated At: 2024-09-01
Changes: Sep 1, 2024
Version 3.1.8
> > New preset browser.
> > New "rich info" about screen
> > Many small bug fixes and optimizations, and general updating of all SDKs and APIs.
Phosphor 3 version 3.1.8
Updated At: 2024-09-01
Changes: > > New preset browser.
> > New "rich info" about screen
> > Many small bug fixes and optimizations, and general updating of all SDKs and APIs.
Phosphor 3 version 3.1.6
Updated At: 2023-11-16
Changes: Nov 16, 2023
Version 3.1.6
Just a maintenance update, to make sure everything is current.
Phosphor 3 version 3.1.5
Updated At: 2022-12-04
Changes: Dec 4, 2022
Version 3.1.5
> > Audio/MIDI settings button didn't work in standalone version. Fixed.
Phosphor 3 version 3.0.9
Updated At: 2020-08-06
Changes: Aug 6, 2020 Version 3.0.9
NEW IN 3.0.9:
1. When you have the modulation assign window open for a slider, and touch the on-screen keyboard, you can now play without closing the mod assign window.
2. MPE mode now works correctly in hosts that support it.
3. Minor bug fixes and optimizations.
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