ardura / actuate

Synthesizer, Sampler, Granulizer written in Rust with Nih-Plug and egui

Actuate

A Synthesizer, Sampler, and Granulizer built in Rust + Nih-Plug Written by Ardura

Please note this project is still a work in progress/alpha - I got a lot of traction once I posted on KVR and wanted to clarify that!

Join the discord! https://discord.com/invite/hscQXkTdfz Check out the KVR Page: https://www.kvraudio.com/product/actuate-by-ardura

Features

Hover over any knob (or some labels) for an explanation!

• Two SVF Filters, a VCF inspired filter, and Tilt inspired filters that can be parallel, serial, or bypassed with ADSR Envelopes
• Pitch modulation with ASDR

• 12 Oscillator shapes:
  • The standard: Sine, Triangle, Saw, Ramp, Square, Pulse, Noise
  • WSaw - Saw with noise variance to create crispyness
  • SSaw - Saw with small variance to create shimmer
  • RSaw - Rounded saw wave
  • RASaw - Rounded saw wave with random variances
  • RSquare - Rounded square wave
• 7 Filter resonance approximations for different sweeps in SVF filters
  • Default - Allegedly the "ideal" response when tying Q to angular sin response
  • Moog - Allegedly a Moog Ladder Q approximation further modified
  • TB - Allegedly an approximation of a TB-303 LP further modified
  • Arp - Allegedly an approximation of an Arp 2600 further modified
  • Res - I made this up - kind of a hyper resonance while still being gentle
  • Bump - I made this up - a gentle bump resonance different from the others
  • Powf - I made this up - Curves based on Powf math function as it scales
• 10 Different FX for post processing

• 3 LFO controllers

• 4 Modulators that can be linked to multiple things

• Sampler with pitch shifting or resample stretching
• Sampler supports single cycle waveforms for wavetable-like functions
• Granulizer with ADSR and crossfading between grains
• Any generator can go to any filter
• Samples can be saved into presets
• Stereo width and ultra wide controls

Signal Path

Roadmap

• Create a Preset Browser
• Add more reverb styles
• Add more decay styles
• Fix some bandpass glitching on certain filter types
• Create different stereo spreading algorithms
• Make the GUI nicer - see Discussion #26
• Look into making the preset loading more reliable
• Fix text input not working (right now it's a OS safe workaround)
• Fix file dialog in the process thread (right now it's a OS safe workaround)

DAWS and compatibility

• Compatible with Windows 10 and up
• Compatible with Linux
• Compatible with Mac
• DAWS
  • FL Studio tested compatible
  • Ableton tested compatible
  • Reaper tested compatible
  • Ardour tested compatible with some reported performance issues
  • Bitwig tested compatible
  • Cantibile tested uncompatible and has issues
  • VSTHost tested compatible but has gui issues

Other Build information

The builds on GitHub and KVR are VST3 and CLAP format, and are compiled on the following machine types:

• Ubuntu 22.04
• Windows' 2022 build (Win10? The Github runner just lists "Windows-2022")
• MacOS 12 (Other MacOS versions are available but I picked 12 for compatibility for now. I have not tested on M1 Macs.)

Known Issues

• Naming presets and info may be unstable in non-windows environments as I have not tested those sorry