Flame Black Filterbank

Flame Black Filterbank - an analog moving resonance filter bank

The module is based on the Flame Curves, combining their key functions in a more compact format. As a result, the individual outputs for the filter channels no longer found a place on the front panel. The Input Engine can also be overdriven nicely thanks to the germanium diodes. Compared to the Curves, the Black Filterbank offers a dry/wet stereo signal path, which is very convenient when you want to patch the module without additional mixers. 

The Filterbank contains twelve channels and a pattern player that can be programmed via a software editor. It’s possible to use a freeware "Curves editor software" (Win/Mac) for setup and user pattern editing. The module needs a clock to run in pattern-mode. It also features a reset input to set the sequence back to the first step. The memory in the module can save up to 99 patterns. The active pattern can be seen on the display and selected thanks to two buttons. 

When the Black Filterbank is in sequencer mode, the Envelope potentiometer controls the AR envelope, the Variation knob adds random velocity and release, and the Fill potentiometer controls the level of all the channels.
In manual mode, when the sequencer is off, you can select different filter-types with the Variation potentiometer: allpass, lowpass, bandpass 1-3 and highpass. Thanks to the Fill knob it is possible to sweep through the twelve filter bands. The Envelope knob smoothes the sweep by activating a second band next to the selected filter band. Thus the change from one band to another is not so abrupt.
It is also possible to play the twelve filters via MIDI like a drum module, thanks to the supplied MIDI to minijack cable. It even reacts to velocity.

There are several CV inputs for controlling Envelope, Variation and Fill parameters as well as the pattern number.

Features:

• 12-channel analogue filter bank
• Sequenced Pattern Player with Curves Editor software
• Memory for 99 patterns
• Filter options: Allpass, Lowpass, Bandpass 1-3, Highpass
• AR envelope and dynamic random variations
• Level adjustment
• Stereo overdrive (with germanium diodes) 
• MIDI compatible, velocity sensitive
• CV inputs for external control
• Clock and reset inputs
• Combination of sequenced and manual control
• Dry/wet stereo signal path