Inspired by the classic Buchla 296 Programmable Spectral Processor, the Verbos Electronics Bark Filter is a 12-band fixed filter bank for use in Eurorack modular synthesizer systems. Each band features an independent output and envelope follower. There’s also a voltage-controlled mixer that is useful for fine-tuning the output signals. The mixer features sliders, CV inputs, and center, width, and tilt controls that allow for even more intuitive scanning and mixing options. For example, the filter can be patched so that its even envelope followers control the levels of the odd, causing the filter to behave in a manner similar to a vocoder.
The Bark Filter Processor is a 12 band fixed filter bank with individual outputs and envelope followers on each band as well as a voltage controlled mixer for blending the outputs. The filters are steep, 6th order bandpass filters with yellow LEDs indicating the level at the envelope followers’ outputs. The voltage controlled mixer has sliders and individual CV ins and draws the, “center”, “width” and “tilt” controls from the Harmonic Oscillator allow- ing the fixed filters to be scanned across blended and mixed in various ways, all at the same time. The even and odd filters can be patched in and out separately and one side’s followers can control the other side’s levels like a vocoder.
Verbos Electronics Bark Filter Fixed Filter Bank Reviews