Grendel Formant Filter

The Grendel Formant Filter has three control voltage (CV) inputs: Size, Articulator X, and Articulator Y, which are optimized for 5 volt analog control signals, but can accept up to +/-10 volts.
The Size parameter moves all four BPFs in parallel, which affects the overall size of the filter’s ‘mouth’, from oversized to midget.
Articulators X and Y work together to select vowel tones from a two-dimensional map related to the IPA Vowel Chart. For optimum control, these inputs can be connected to an analog joystick controller or two channels of a MIDI-CV converter. The ideal voltage range for controlling Articulators X and Y is +/- 2.5 volts, or 0..+5 volts.
Suggested signal sources for the CV inputs are LFO, envelope generator, MIDI-CV converter, analog joystick controller, etc.

Features

• Size Control
• Size CV Input
• Articulator X Control
• Articulator X CV Input
• Articulator Y Control
• Articulator Y CV Input
• Gain Control
• Audio In/Out

Video: https://youtu.be/eF6hmd35O5s

Product Specs

• Item Number: 33964
• Make: Grendel
• Model: Formant Filter
• Condition: Very Good
• Finish: Silver
• Categories: keyboards-and-synths ⇒ eurorack
• MPN: 33964