Update details - Tone2 Saurus VST VSTi AU synthesizer plugin

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Update details
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Saurus 3.0 (free update)

The update to v3.0 is a major update, that is available for free for all Saurus users. It includes a big GUI, a massive number of new sounds, new features, higher sound-quality, better performance and many enhancements.
Saurus3 is downward-compatible with all previous versions. All existing song-projects and patches can be loaded without any further steps necessary.

New features:

  • A big interface is available beside of the normal scale now.
  • Added 192 new sounds from a professional designer. The total number of included sounds has increased to 1022.
  • It is possible to select from 4 GUI sizes in 'Config'.
  • The synth can create an unlimited number of new sounds with FILE->'Create random patch'.
  • 'Soft clip' is available in the 'Config' section.
  • A scrollbar is visible in the patch-browser if many soundsets are installed.
  • Added detailed tooltips that are shown when the mouse if hovered over a button or list-selector.
  • The texts shown in the patch-browser on Mac support hi-dpi drawing.
  • The plugin detects the best GUI-size automatically.
  • Patch-selector shows a checkmark for the current patch and category.
  • Added Digital-Signatures for the installers on PC.
  • Added Notarisation for the installers on Mac.
  • The texts shown in the patch-browser on Mac support hi-dpi drawing.
  • A double-klick on a knob resets it to the default-value.
  • New microtuning algorithm that is more subtle and can enhance also complex chords.


  • The synth has more 'bottom' and sounds warmer.
  • Enhanced sound of Reverb.
  • Replaced Chorus with a better one.
  • Reworked all factory patches.
  • More precise timing.
  • More smooth sound of noise.
  • Higher sound-quality in 44 khz, 48 khz and 88 khz sample-rate.
  • Reworked many graphics.
  • Many small enhancements.
  • Fonts are easier to read.
  • Fine-tuned GUI layout.
  • Enhanced mouse-focus and mouse-wheel support on PC.
  • OSCs in free-mode have a more punchy sound.
  • Midi-learn syncs better when multiple instances are used.
  • A warning is shown when Midi-configuration can't be stored because of write-protected files.
  • More accurate modeling of the tuning in mono-modes.


  • Updated some links.
  • 32-bit on PC is not longer supported. If you still use a 32-bit host, install Saurus 2.6 instead.
  • 'Gate' has been rename to 'Step'.
  • Renamed 'Tutorial' patch-category to 'Templates'.
  • Demo-version contains now all sounds.


  • Workaround for the badly designed architecture of FL Studio. It is not longer necessary to enable 'Use fixed size buffers' to avoid crackles.
  • Workaround for a bug in Apple's AU-validation in Big Sur and Catalina. It is not longer necessary to reboot the Mac to detect the AudioUnit.
  • Fix for Apple's recently altered 'Dark Mode' in Big Sur. It displayed unreadable tooltips with white text on yellow background.
  • Workaround for a bug of Big Sur. The diodes were not updated when a selector-button was pressed.
  • Fixed a crash that could happen if filter-type is automated.

Installation note on the Mac if you upgrade from a previous version:

The directory of some patches has changed since they have been re-categorized and enhanced. To avoid duplicates it is recommended delete 'Library/Audio/Plug-Ins/Saurus_sounds' before you install Saurus3.

Saurus 2.6 (free update)

The update to v2.6 is available for free for all Saurus users. Saurus 2.6 is downward-compatible with all previous versions. All existing song-projects and patches can be loaded without any further steps necessary. They will benefit from the enhanced sound-quality.

New features:

  • Tooltips and Drag&Drop info can be hidden in the config section
  • Added Digital Signatures for the installers on PC
  • Added Notarisation for the installers on Mac
  • Support for Code-Signing on the Mac, since newer hosts may require it to be able to run plugins
  • Compatibility with MacOS Catalina
  • Completely new AudioUnit interface
  • A double-click on a knob resets in to the default value (Mac)


  • PC and Mac version are loading faster
  • Chorus sounds smoother
  • Delay and PingPong sound more harmonic
  • Tube-distortion is more clear and supports oversampling
  • Menus are bigger
  • Check-marks in the list-selectors show the currently selected item
  • Workaround for a well-known bug in Apple's AU-manager: It is not longer necessary to reboot the Mac to detect the plugin
  • Better compatibility with Windows 10
  • Several small enhancements in the GUI
  • Slightly warmer sound
  • Saurus.pdf and .cfg files are not longer stored in plugin-directory
  • SaurusLog.txt is not longer created (Mac)

New features and enhancements (standalone-version for PC):

  • Added a recorder that can export your jam-session to a wav-file
  • The BPM-rate can be changed
  • Added a soft-clipping-algorithm with low harmonic distortion
  • The current patch can be saved on exit and is reloaded automatically on start
  • MME-driver support
  • Midi-through support with output-routing
  • Added Midi-velocity-curves with multipoint-splines
  • Optional Midi-transposition with up to +-48 semitones
  • Optional Midi-channel-filtering
  • The current BPM-rate, CPU-load and volume is shown on the top-panel
  • Tooltips are shown on the top-panel
  • Lower latency for the sound-card drivers
  • More responsive GUI with 120 Hz refresh-rate for smooth knob movements


  • Fixed a compatibility problem with some hosts where automation was not recorded correctly
  • Fixed a possible crash on loading the GUI
  • Cubase did display an incorrect plugin-version
  • Fixed two rarely appearing crashes on FL Studio Mac
  • Fixed a rarely appearing problem when envelope-parameters were not updated correctly
  • Fixed a rarely appearing crash in Reaper when ESC was pressed while a tooltip was shown
  • Fixed a problem where the demo could output garbage after the time has been running out
  • Fixed a bug where low frequencies were missing in the left channel


  • 32 bit on Mac is not longer supported. If you still use it, install Saurus 2.5 instead.
  • MacOS 10.7 is the minimum requirement now. If you use 10.6 or 10.5, install Saurus 2.5 instead.

Saurus 2.5 (free update)

The update to v2.5 is a major update, which is available for free for all Saurus2 users.
Saurus 2.5 is downward-compatible with all previous versions. All existing song-projects and patches can be loaded without any further steps necessary. They will benefit from the enhanced sound quality.

New features:

  • Drag & Drop modulation: Drag an envelope or lfo and drop it to a knob to modulate it
  • Midi learn support: Right-click on a knob to assign or remove a CC
  • Right-click on a knob opens a menu where you can assign a massive amount of modulation sources
  • Hovering the mouse over a knob shows a box with information
  • Modulation depth control on top left of a knob if a source is assigned
  • Sectors on knobs show the modulation amount
  • A red sector is shown when clipping of modulation occurs
  • File->'Show version info' shows the version number of Saurus
  • Right-click on a knob and 'reset' resets a knob to the default value
  • File->'reset midi learn' removes all CC assignments
  • File->'Clean matrix' cleans up the mod matrix and resets unused slots
  • Right-click on a knob and 'remove modulation' removes all assigned mod sources
  • Tooltips are shown when the mouse is hovered over a button


  • More beautiful background skin
  • Enhanced sound of the Reverb: Less detuned sound and more beautiful early reflections
  • Enhanced sound of the PingPong delay: Added a lowCut filter
  • Enhanced sound of the Delay: No more detuning and a more wide sound
  • Enhanced sound of microtuning
  • Better sound quality: New high-end resampling algorithm
  • More bass and warmer sound
  • More linear frequency response in 'linear mode'
  • Faster Volume Envelope for more punch
  • Saurus v2.5 'fits better to the mix'
  • New knobs with enhanced performance
  • Parameters are more easy to adjust
  • Patch rankings are now stored as .rnk files within Saurus_sounds
  • Fat Unison is more easy to setup
  • More 'bottom' if a new patch is initialized
  • Texts are more easy to read
  • Activation dialogue is now also available in German language
  • Faster loading of 32bit PC version
  • More robustness
  • Faster patch loading
  • Lower CPU on Mac


  • Better compatibility with Fruity Loops
  • Matrix source 'random' did not work in legato mode
  • It is not longer possible to click on the VU diodes
  • Fixed a very unlikely but possible crash

Saurus 2.0


  • Enhanced sound quality because the synthesis engine has been completely reworked
  • Over 260 additonal patches
  • Completely reworked all existing factory patches
  • Added a comfortable patch browser
  • Much more detailed emulation of the 'analog' sound. The degree of analog behaviour is now selectable.
  • Enhanced graphics
  • More comfortable user interface
  • A huge number of further new features and enhancements
  • Saurus2 is 100% downward compatible with all previous versions

New features:

  • Added a comfortable patch browser with a keyboard which can be opened by clicking 'BROWSE'
  • Added a 'Config' menu which allows to set the degree of analog behaviour
  • Additional LowCut equalizer
  • Additional HighCut equalizer
  • Added a new play mode 'Stack' which plays the autochord defined in 'Arp Key Mode'
  • 14 additional 'Sine' LFOs as matrix source
  • 4 additonal chord modes which play thirds for the arpeggiator
  • The patches can be ranked by clicking on the stars in the patchbrowser
  • Keyboard can be hidden with 'Config->hide keyboard'
  • The degree of analog noise modeling can be selected between 'none' and 'extreme'
  • The degree of analog drift can be selected between 'light' and 'extreme'
  • Added a smart microtuning algorithm. 'Fat tune' delivers more harmonic and transparent chords.
  • The degree of analog saturation can be selected between 'linear' and 'extreme'
  • The degree of analog OSCs damping can be selected between 'light damp' and 'heavy'
  • An analog sounding default patch can be initialized with 'File->Init analog patch'
  • A digital sounding default patch can be initialized with 'File->Init digital patch'
  • Modwheel and pitchwheel are auto-assigned on patch initialisation

Enhanced sound:

  • The OSCs and filters can emulate the noise created by analog circuits
  • The OSCs can emulate the saturation of analog amplifliers
  • The voices and filters can emulate drift and voice detuning
  • Replaced oscillators with more 'analog' sounding ones
  • Boost mode sounds more 'analog' and smooth
  • Replaced Reverb with a better sounding algorithm
  • More accurate high frequencies of 'Delay' and 'PingPong' effect
  • More 'analog' behaviour of 'drift'

Enhanced GUI & interface:

  • Information about the current patch is shown in 'info' tab of the patch browser
  • Rendering with ambient occlusion for a more realistic look
  • More comfortable saving of patches on PC
  • LCD displays have more contrast and are more easy to read
  • Keyboard is now animated
  • Added mouseover support: Parameter values are displayed when mouse is hovered over them
  • Mousewheel support (if host supports it)
  • Mac version now also supports waveform selection by clicking on diodes

Further enhancements:

  • Better host compatibility
  • More robustness
  • More comfortable installer
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