Springer Spring Reverb VST (Free Windows VST, Open Source for Win/Mac/Linux)

Watch it in action:

A video with only the pure impulse response output, using an older version of the plugin, can be found here: https://www.youtube.com/shorts/heJc9tRdocU

Springer is an algorithmic stereo spring reverb inspired by physical spring tanks but is a very crude model, built from dual interacting spring lines with dispersion, damping, feedback, and modulation. It’s designed to go from dub-style springyness to phasing laser sounds.

Please note that with all 7 coils and 256 dispersion stages active, this plugin can be quite CPU-intensive (around 15% of CPU usage on my mid-tier machine). I recommend using 2 coils and about 200 stages as the amount of coils beyond 2 most often does not make a huge difference.

Here is a quick overview of the plugins controls:

• Version 1.2 adds up to 7 coils and expanded delay controls for all of them.

• Version 1.1 adds a Pitch Slider to make the coils "thicker" and the sound deeper. Both versions are included in the download.

• Dispersion Stages: How many smear blocks are in the spring. More = thicker, more high-frequency goodness.
• Width / Time: How long the spring is. Bigger number = longer delay and tail.
• Resonance: How much the spring feeds back. More = more ringing and possible self-oscillation (be careful for values >1).
• Coupling: How much spring 1 and spring 2 feed into each other. More = weirder stereo behavior.
• Damping: High-frequency loss in the spring. More = darker and less splashy.
• Wet Only: Outputs only the spring, no dry signal.
• Random Allpass: Randomizes the internal allpass values. Changes the spring character.
• Mod Rate: How fast the spring delay moves. Slow = gentle wobble, fast = pitch wobble.
• Mod Depth: How far the spring delay moves. More = more unstable sound.
• Wet Gain: How loud the reverb is.
• Delay 1 / 2: Density delays for spring 1 and spring 2. Changes how busy and smeared the spring sounds.

Install the windows vst (the provided .vst3 folder) in C / Programs / Common Files / VST3.

The source code was mostly made with AIs, so its open source. Use it however you like!

Thanks for using my plugin!