Decade Bridge : Speculum free v1.0

Speculum is a free modulation effect that combines a delay with a comb filter. You can switch between the two modes, and the resulting signal is shaped by a resonant low-pass filter. The divide control lets you fine-tune the delay rate, which opens up flanging, chorus, and phasing textures when you automate it. It’s a straightforward tool for adding movement and character to synths, guitars, or any track that needs subtle modulation or more pronounced swirling effects. Because it’s free and available as VST3 and AU, it works with most major DAWs on macOS. Whether you’re a hobby producer experimenting with sound design or looking for an extra modulation option in your mix, Speculum offers a simple way to get classic modulation effects without spending anything. It’s lightweight and easy to use, making it a handy addition to your plugin collection for quick creative tweaks.