Free Synthesizer and Sampler: Aurora SynSampler

This is an independent audio instrument which requires only any MIDI sending keyboard and PC powerfull enough with Windows 11.

Current version of AuroraSynSampler is a restricted Demo version with limited voice/sound set and functionality but has quite large packed raw sample (.wav) set. If you like finalized version to be released in the future, you need to give me some feedback; otherwise I have no motivation to struggle with especially sample preparations for distribution to the public.

Aurora is not any sort of DAW/VST so if you are searching something like that you better stop reading. Also Aurora is targetted to persons who have pretty good knowledge of synthesizer/sampler programming and sound producing in general. Not to the beginners, sorry.

Furthermore, since because of I have never got any thanks or feedback from my previous projects, I decided to make Aurora under registration. I do not collect any personal data. Registration only requires filling network form with valid email-address and registration key number sequence generated by Aurora. You receive activation code by email and paste activation code to Aurora's registration window. For the sake of clarity and code of honor, Aurora does not "call home" or install any spyware like many commercial "trusted" softwares secretly do.

AuroraSynSampler inside:

Mixer window

Voice parameters

Loop and tuning tool

Extended FM synthesis window

Wavetable config window

Wavetable cell design window

Midi local bindings

Keymap editor window

Sound editing window

Effects window

Sequencer track window

Properties under current construction and only partially available:
1. Sequencer and projects.
2. Local scale MIDI routing.

Properties to Beta version after Demo version:
1. Projects (kind of "Song mode" storage)
2. Wavetable extension
3. Arpeggiator extension
4. MidiB extension
5. Global scale MIDI routing.

Properties after Beta:
1. More raw samples and some "preset" voices/sounds based on samples
2. Sequencer control track e.g. to change tempo and change beats per bar
3. Possibly audiopacks buildable by user
4. Track-to/from-disk recording expansion
5. MIDI input patchbay editor
6. AAL (Aurora Application Language)

Some AuroraSynSampler audio examples:


Installation and Registration Instructions

0. Important before installation and before uninstallation Before installing new version of AuroraSynSampler you need to uninstall previous version and before that remember to BACKUP your work.
That is, take a copy of the following C:\Aurora subdirectories:
- \Voices (in case you have created your own voices)
- \LoopFiles (in case you have created your own voices)
- \Sounds (in case you have created your own sounds)
- \Projects (in case you have created sequencer projects)
- \Settings (your Mixer.settings and VoiceClassifications.settings)
- \WaveFiles (your own .wav files)
- \Wavetables (your wavetable cells)

1. Load AuroraSynSampler zip via download link below.
2. Just in case as with all downloaded programs run virusscanner to the downloaded file.
3. Unzip installation zip into separate directory (3 files) and run aurorasetup.exe. For now the installation target must be fixed C:\Aurora.
4. In order to activate Aurora you need activation number sequence. That can be obtained by filling automated network form. That needs "challenge" number sequence provided by Aurora's LogWindow and your valid email address you want to receive activation sequence into. registration form
5. Copy paste the activation sequence from your email into Aurora's registration window opened via Log window's link.
6. Aurora will display "(registration ok)" in the log window from this on.

Download DemoLite version 1.1: DemoLite v1.1 installation zip  20.3.2026   (not yet stable version)  Please be patient since the size of the DemoLite is about 3GigaBytes. (file is temporarily unavailable, sorry)
Installation first test topics: First Encounter to Aurora document
Some history and background: History
Actual manual and documentation will be released later.

Give it a try with Aurora. It's free, has already much properties and can produce quite good sound with reasonable programming efforts.

Pekka Upo,
Finland 20.03.2026

email: aurorasynsampler(at)polycsg.net