Formant vocal filter made of 4 bandpass fiters

Analog bandpass filter bank. Voltage controlled vowel selection from the standard "IPA vowel trapezium", within an X-Y parameter space.

Q. V/oct?
A. No.

http://rarewaves.net/products/grendel-formant-filter/

• 65 mA +12V
• 65 mA -12V
• ? mA 5V
• 30 mm Depth

No info about availability.