Terrarum has released two brand new free AUv3 FX plugins for iOS and macOS, Rivet 3-Verb and Rivet 4-Comb. Both effects are based on open-source Airwindows algorithms and are royalty-free with no sign-up required. Download links are available on Terrarum’s developer page.
Terrarum Rivet 3-Verb — Three-Engine Reverb
Rivet 3-Verb delivers a versatile triple-engine reverb with drive degradation and tempo-synced gating, designed for modern electronic production. Its sound palette covers everything from tight concrete rooms and classic 80s gated snare tails, to lush, reverse-style swells. The plugin features:
- Three selectable reverb engines: Tight Room, Gated Snap, Reverse Swells
- Pre-EQ (low, mid, mid-freq, high)
- Main reverb space controls: room size, decay
- Character section: adds drive, saturation, lo-fi grit
- Post-EQ and output controls
- Six sections layout, with clear I/O metering
Suitable for drums, synths, and buses, Rivet 3-Verb is especially useful for techno and industrial, but works in any genre needing unique space effects or atmospheric tails.
Terrarum Rivet 4-Comb — Resonant Comb Filter
Rivet 4-Comb brings resonant comb filter FX to your AUv3 arsenal with feedback resonators and built-in saturation. Use it for metallic flanging, unique room simulation, thick chorusing, or resonant sweeps.
- Comb filter with controllable feedback
- Internal analog-style saturation
- Flexible for percussive hits, bass, or synth layering
- Ideal for creative sound design, especially electronic genres
Terrarum’s plugins are based on the extensive Airwindows DSP library, now tailored with easy-to-use interfaces for mobile and desktop musicians.
Licensing and Availability
Both Rivet 3-Verb and Rivet 4-Comb are royalty-free and open-source — you can use them in commercial projects without restriction. No sign-up or time limit applies. They run as AUv3 plugins on iOS (iPad, iPhone) and Apple Silicon or Intel Macs supporting AUv3. No VST3, AU, or standalone versions at this time.
Quick Facts: Terrarum’s free AUv3 reverb and comb filter plugins are available now, royalty-free, for iOS and macOS — download directly with no sign-up. Check out Terrarum’s site for the latest updates and additional FX.
Ready to explore new sound design tools? Download Terrarum Rivet 3-Verb and Rivet 4-Comb now.
FAQ
Are Rivet 3-Verb and Rivet 4-Comb really free?
Both plugins are completely free to download and use, with no sign-up required and no payment needed.
Can I use these plugins for commercial music projects?
Yes, they are royalty-free and may be used in any project, including commercial releases.
What platforms and formats are supported?
Rivet 3-Verb and Rivet 4-Comb run as AUv3 plugins on iOS devices and Apple Silicon or Intel Macs that support AUv3. Other formats are not available.