HarmonEQ - Harmonic Equalizer

This is a harmonic equalizer for audio developed in MATLAB using the Audio Toolbox for the 2021 AES Student Plugin competition. HarmonEQ differs from other equalizers in its control scheme. It is a parametric equalizer with indirect controls. Rather than having precise control over filter frequencies, the user tunes HarmonEQ to a specific musical note or chord. The user can then define gain and Q values for five different ranges: low, low-mid, mid, high-mid, high.

Demo video

(Click image to view YouTube video.)

Compiled plugins

Pre-compiled versions of the plugin are available:

• macOS
  • VST:
    • mono (v0.4)
    • stereo
  • AU:
    • mono (v0.4)
    • stereo
• Windows
  • Coming soon. I need a Windows installation in order to be able to compile for Windows...

Installation instrucitons

• macOS
  • Download and unzip the VST and AU plugins.
  • Open Finder and go to the Home folder.
  • Navigate to /Library/Audio/Plug-Ins/.
  • Move HarmonEQ.vst to the /VST/ folder and HarmonEQ.component to the /components/ folder.
  • On newer versions of macOS (10.14 or 10.15 and later) you will need to manually remove the plugins from quarantine. Instructions for that will be posted soon.

Instructions for de-quarantining unsigned plugins

• Open the Terminal app
  • If you're not familiar it, click the magnifying glass in the upper left corner, type terminal, and hit Enter to launch it.
• Type sudo xattr -rd com.apple.quarantine /Library/Audio/Plug-Ins/<folder name>, replacing <folder name> with the name of the folders that contain the plugins the need to be de-quarantined.
  • Examples:
    • sudo xattr -rd com.apple.quarantine /Library/Audio/Plug-Ins/VST/
    • udo xattr -rd com.apple.quarantine /Library/Audio/Plug-Ins/Components/

Prereqs for compiling

• MATLAB R2021a
  • DSP Toolbox
  • Audio Toolbox
  • MATLAB Coder (for exporting to JUCE)