Surge is a digital synth and makes no bones about it.
NanoHost is a free and minimalist host application which can load VST-synthesizers. It is great for live-performance, testing and sound-design. Furthermore, it can act as a wrapper which converts VST-synthesizers into standalone applications. Type of plugin: VSTi. What it does: This virtual analog synth was inspired by the Clavia Nord. PC/Mac/Linux VST/AU. Surge first appeared on the scene as a commercial paid-for release in the latter half of the noughties, but it’s been given a second life in recent years after re-emerging as a free and open-source plugin.
If you have used it in the past, it will be like welcoming an old friend back into your life. If you are new to Surge, welcome to the party. Come on in, the water is fine.
Thanks to the generosity of @Kurasu (owner of Vember Audio), Surge has been open sourced and lives on GitHub.
Each patch contain two ‘scenes’ which are separate instances of the entire synthesis engine (except effects) that can be used for layering or split patches.
Quick category-based patch browser
Runs on a variety of operating systems, plugin formats, and architectures
Classic oscillator is a morphable pulse/saw/dual saw oscillator with a sub-oscillator and hard sync.
FM2/FM3 oscillators consist of a carrier and 2 or 3 modulators and various options.
Most algorithms (except FM2, FM3 and Audio input) offer up to 16-voice unison at the oscillator level.
Oscillator FM and ring modulation between oscillators 1-2 and 2-3.
Most oscillator algorithms (except FM2, FM3 and Sine) are strictly band-limited, yet still cover the entire audible spectrum, delivering a clear punchy yet clean sound.
Noise generator with variable spectrum.
FILTER BLOCK
Two filter units in 8 different configurations.
Feedback loop available in 7 of those configurations.
Available filter algorithms: Lowpass (12 and 24 dB/oct, each with 3 variations), Lowpass 24 dB/oct (3 variations), Ladder Lowpass (6-24 dB/oct), Highpass (12 and 24 dB/oct, each with 3 variations), Bandpass (12 and 24 dB/oct, each with 3 variations), Notch (12 and 24 dB/oct, each with 2 variations), Comb (4 variations), S&H.
Filters can self-oscillate (with excitation) and respond amazingly fast to cutoff frequency changes.
Waveshaper (5 shapes).
EFFECTS
8 effect units arranged as 2 inserts per scene, 2 sends and 2 master effects.
13 effect algorithms:
EQ, Distortion, Conditioner (EQ, stereo image control and limiter), Frequency Shifter, Rotary Speaker, Ring Modulator, Vocoder, Chorus, Phaser, Flanger, Delay, Reverb 1, Reverb 2
Free Vst For Linux Free
System Requirements
macOS
Intel Mac running at least macOS 10.11
Minimum of 4 GB of RAM
VST-compatible or AU-compatible host application
Windows
Windows 7 and a recent Intel processor (at least Pentium 4 or above)
Recommended: Computer running Windows 7 64-bit or newer
Minimum of 4 GB of RAM
VST-compatible host application
x64-compatible CPU, OS and host is required to use the 64-bit version
Linux
Free Vst For Linux Version
PC running a Linux distro
CPU must support the SSE2 instruction set. This has been supported on Intel CPUs since Pentium 4, and on AMD CPUs since Athlon 64.
Minimum of 4 GB of RAM
VST-compatible host application
x64-compatible CPU, OS and host is required to use the 64-bit version