The Formant Filter will boost two frequencies to mimic the sounds of different vowels.
This plugin is a “Snapin”. Kilohearts plugins work great together, and all the snapins can work double duty as modular components inside our snapin hosts. There are several different hosts:
• Snap Heap, a free host that allows you to quickly and easily combine your Snapins to create your own serial and parallel modular effects units,
• Multipass, a multiband modular host,
• and Phase Plant the award-winning, semi-modular softsynth that enables you to add your full effects chain right inside the preset area.
You can also use it as a regular VST/AU plugin.