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

Shortcut to troubleshooting section

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

Troubleshooting

Since Actuate 1.2.8 the new file browser and UI use native text editing. This created some issues in some DAWs outlined here:

• FL Studio: No issues!
• Ardour: No issues!
• Bitwig: When using text input you need to use <shift + spacebar> for space key input
• Reaper: VST3 and CLAP text input works if you use "send all keyboard input to plugin" in the FX menu

• Ableton:
  • Text input works if you add "-_EnsureKeyMessagesForPlugins" to Options.txt in preferences. See https://forum.ableton.com/viewtopic.php?t=97318
  • Unfortunately I don't know where this would be on Linux or Mac so I'm open to help from Ableton users!

Roadmap

• Create a Preset Browser
• Add more reverb styles
• Add more decay styles Not doing
• Fix some bandpass glitching on certain filter types (need to find these scenarios still)
• 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
• The MacOS M1 build is on OS 14

Known Issues

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