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Installation guides, FAQs, and everything you need to get up and running.

Installation Guide

  1. 1

    Download after purchase

    After completing your purchase, you'll receive an email from LemonSqueezy with a secure download link and your license key. The link is valid for 30 days and allows up to 5 downloads.

  2. 2

    Unzip the archive

    Right-click the downloaded Vellum.zip (or Penumbra.zip) and choose "Extract All". You'll find a .vst3 bundle inside.

  3. 3

    Copy to the VST3 folder

    Copy the .vst3 folder to:

    C:\Program Files\Common Files\VST3\

    This is the standard VST3 location recognized by all major DAWs on Windows.

  4. 4

    Rescan plugins in your DAW

    Open your DAW and trigger a plugin rescan. In most DAWs this is under Preferences → Plugins → Scan / Rescan. After scanning, search for "Vellum" or "Penumbra" in your plugin browser.

System Requirements

Minimum

OSWindows 10 x64
CPUIntel/AMD SSE4.2+
RAM4 GB
FormatVST3 host

Recommended

OSWindows 11 x64
CPUIntel Core i5/i7 (10th gen+)
RAM16 GB
Buffer256–512 samples
Tested DAWs: Reaper 7+, Ableton Live 11/12, FL Studio 21, Cubase 12/13, Studio One 6. Other VST3-capable hosts should work but are not officially tested.

DAW-Specific Notes

Reaper+

Go to Options → Preferences → Plug-ins → VST and add C:\Program Files\Common Files\VST3 to the scan paths if it's not already there. Click "Re-scan". PDC is on by default in Reaper — Vellum latency is compensated automatically.

Ableton Live+

Go to Preferences → Plug-Ins. Make sure "Use VST3 Plug-In Custom Folder" is enabled. Rescan. Live has PDC and will handle Vellum latency automatically.

FL Studio+

Go to Options → Manage plugins → Find more plugins. FL Studio scans C:\Program Files\Common Files\VST3 by default. PDC must be enabled in project settings.

General FAQ

I didn't receive my download email.+

Check your spam folder first. If it's not there, log in to your LemonSqueezy account at app.lemonsqueezy.com to access your purchases directly. Still not working? Email us at support@apophenia.studio.

The plugin isn't showing up in my DAW.+

Make sure you copied the .vst3 folder (not just the .dll) to C:\Program Files\Common Files\VST3\, then trigger a full rescan in your DAW. Some DAWs require restarting after scanning.

I want a refund.+

We offer a 14-day no-questions-asked refund. Email support@apophenia.studio with your order number and we'll process it promptly. See our full Refund Policy.

Can I use the plugin on multiple computers?+

Yes. Your license covers personal use on up to 2 machines simultaneously (e.g. your studio desktop and laptop). For additional machines, please purchase additional licenses.

Will there be macOS support?+

macOS builds are planned for the future. There is no confirmed release date yet. If you purchase a Windows license today, you'll receive the macOS version at no extra charge when it releases.

Contact

For support, licensing questions, or feedback:

Email Support

Response time: typically within 24–48 hours (weekdays).