Sognevo Galdr: Free Open-Source Synth Plugin for Mac Linux Windows
Sognevo Galdr is a new free open-source virtual analog and wavetable synthesizer plugin from developer Andrea de Murtas (Sognevo). Released under the GNU GPL v3.0 license the cross-platform instrument runs on macOS Linux and Windows in VST3 AU CLAP and standalone formats. The complete source code is hosted on GitHub.
Features and Architecture
Galdr offers 12-voice polyphony powered by two band-limited PolyBLEP oscillators. Each oscillator provides up to 7-voice unison with detune and stereo spread plus classic waveforms and a morphing wavetable mode. Controls include octave pulse-width PWM morph hard-sync and FM. A multi-wave sub-oscillator with selectable octave and a white pink noise generator round out the sources. Per-voice analog drift adds organic movement.
The filter section is a multimode design with low-pass 12 24 dB high-pass band-pass and vowel modes. It includes cutoff resonance built-in drive a dedicated envelope and key-tracking.
Modulation and MPE
Modulation resources comprise three ADSR envelopes amp filter free two tempo-synced multi-wave LFOs velocity aftertouch MPE mod-wheel and per-note random. An 8-slot modulation matrix routes all sources to destinations. Full MPE support makes Galdr expressive with compatible controllers.
Download and License
The plugin and source code are available on GitHub under the GNU GPL v3.0 license. This permits free use modification and distribution including in commercial productions. No sign-up or account is required to download.
Bottom line: Sognevo Galdr delivers a capable modern synth engine with deep modulation and MPE at zero cost. The open-source license means you can use it royalty-free in any project.
Grab the plugin from the GitHub repository and start designing.
FAQ
Is Sognevo Galdr really free? Yes it is completely free and open-source under the GNU GPL v3.0 license with no hidden costs.
What plugin formats does Sognevo Galdr support? It runs as VST3 AU CLAP and standalone on macOS Linux and Windows.
Can I use Sognevo Galdr in commercial releases? Yes the GPL v3.0 license allows commercial use provided you comply with the license terms.