Erica Synths Graphic Resonant Filterbank stands out as an innovative and versatile addition to any Eurorack setup. This ten-band analogue filterbank bridges the gap between the rich, warm sounds of traditional analog filtering and the precise, programmable convenience of modern-day digital control.
A unique aspect that sets this filterbank apart is undoubtedly its ability to allow individual control over each of its filter bands, whether via precise voltage control or meticulous manual adjustments. This versatility opens up a wide range of possibilities, enabling the module to metamorphose into a multimode filter or even take center stage as a self-governed instrument, especially when experimenting with various resonance settings.
An accompanying Expander module, though sold separately, offers an additional level of control. This companion unit enables hands-on adjustment over all band levels, providing immediate physical interaction and bringing a more tactile experience to your sound design process.
The Erica Synths Graphic Resonant Filterbank boasts a range of impressive features. It allows users to save filterbank settings, filter modes, dynamic EQ, and resonance settings for later recall. The module reveals its versatility with a selection of outputs: main, even, and odd, each opening up different sonic possibilities.
The ability to manage resonance manually or via voltage control, along with the availability of configurable resonance feedback loops, adds another layer of creative potential. Novel features like dynamic spectral compression and a spectral analyzer give this module a distinct edge in the Eurorack landscape.
The Graphic Resonant Filterbank doesn't let up on versatility when it comes to control. The module includes both clock input, for synchronization of events with a master clock source, and configurable CV inputs for seamless integration with your existing setup. Erica Synths has also included options for discrete and morphing pattern changes, further widening the scope for explorative sound design and creativity.
In conclusion, the Erica Synths Graphic Resonant Filterbank is a powerful tool that gives musicians and sound designers a new platform to explore and push their creative boundaries. Its blend of analogue sound fidelity, digital precision, and ample flexibility make it well worth considering for inclusion in any Eurorack setup. More information is available on the official Erica Synths website.
Example Usage
To get started with the Erica Synths Graphic Resonant Filterbank as a novice, it’s important to familiarize yourself with its core functions. This powerful ten-band analogue filterbank can be approached in a number of ways. Begin by connecting an audio source, such as a synthesizer or an audio interface, to the input of the filterbank.
Once your source is connected, experiment with the manual controls for each of the ten bands. Turn the knobs to boost or cut specific frequency ranges. You’ll notice instantly that manipulating these bands affects the character of your sound, leading to everything from subtle tonal shifts to radical transformations.
Consider using the filterbank in ‘filter mode’ for a more traditional approach, where you can shape your audio signal before processing it further. Engage the resonance feedback on one or two bands to see how pronounced the changes can be—this feature allows you to find sweet spots in your sound that can create otherworldly timbres or sharp peaks.
If you're feeling adventurous, delve into the CV control capabilities. For example, patch a LFO to one of the CV inputs assigned to band boost/cut. This will add movement to your sound by dynamically adjusting the levels of different frequencies over time. Pair this with the resonance control and you can create interesting modulations that breathe life into static sounds.
With the option for saving presets, you can easily recall specific configurations once you find a sound you love. This is particularly useful when preparing for live performances or when you want to quickly switch between distinct sonic environments.
If you have the Expander module, utilize it to gain immediate access to band levels and further refine your sound shaping in real-time. This hands-on approach enhances your control and invites experimentation with the other modes available, such as the dynamic spectral compressor or the spectral analyzer mode.
By combining these techniques, even as a beginner, you can explore the depths of sound manipulation that the Erica Synths Graphic Resonant Filterbank offers, paving the way to unique and complex soundscapes.
The Erica Synths Graphic Resonant Filterbank is a powerful tool for sound designers looking to harness the complexity of analog filtering with modern control options. To delve deeper into its capabilities, let’s explore a practical usage example that highlights its functionality and creative potential.
Start by routing an audio source, such as a drum loop or synthesizer output, into the filterbank's input. With the Graphic Resonant Filterbank, you’ll be working with ten individual filter bands, allowing for precise manipulation of your signal. To begin, set all band boost/cut controls to neutral. Play your source material and observe the frequency response through the main output.
Next, engage the CV control for one or more bands. Assign a slow LFO to modulate the boost for the mid-range bands, creating a pulsing effect that evolves over time. This introduces movement into the sound, transforming a static loop into a dynamic and engaging audio texture.
Experiment with the resonance settings. Adjust the resonance on a few bands to emphasize different frequency content. By carefully tweaking these parameters, you can create sweeping filter effects reminiscent of classic analog synthesizers. Consider utilizing the configurable feedback loops—this can lead to unexpected harmonic content and cascading resonance that pushes the limits of your sound design.
Now, let’s incorporate the Expander module for additional hands-on control. Adjust the boost and cut levels on each band while your audio source is playing. This allows for real-time tweaking, helping to fine-tune the response to the live input. You can also save various presets of your filter configurations, which streamlines the process of switching between different setups during live performances or recording sessions.
To further explore the filterbank’s capabilities, switch to its multimode filter mode. Experiment with the settings to discover how the filter can act as an instrument in its own right—generate melodic lines or rhythmic elements by playing it as you would a synth. The clock input is particularly useful in this scenario, allowing you to sync filter movements with other modular components and further integrating it into your performance setup.
Lastly, transition into the spectral analyzer mode to visualize how your audio input interacts with the filterbank. This can provide valuable insight into how the bands are affecting your signal and help you identify frequency ranges that may need additional sculpting.
By combining these techniques, the Erica Synths Graphic Resonant Filterbank transforms from a mere filter into a versatile and expressive sound design tool. Whether you're performing live or producing in the studio, the ability to manipulate individual bands with CV, combined with resonant feedback and the expansive interactivity of the Expander, opens a vast array of sonic possibilities waiting to be explored.
Further Thoughts
The Erica Synths Graphic Resonant Filterbank offers an expansive and intricate way to sculpt sound, making it a standout module in any Eurorack system. To unlock its full potential, consider a usage scenario that showcases its unique capabilities.
Begin by patching a simple sound source, such as an oscillator, into the input of the filterbank. Set all bands to a neutral position, then slowly sweep through each band’s frequency range while adjusting the boost and cut manually. Listen closely as the timbre transforms, each adjustment revealing new tonal qualities.
Next, explore CV control by routing a sequencer output to the band boost/cut inputs. Experimenting with a sequence of varying voltages will produce dynamic changes to the frequency bands over time. Use the built-in resonance settings to add character—raising the resonance for specific bands can create sudden peaks, producing a dramatic filter effect that feels alive and reactive.
For more complex patches, utilize the clock input to synchronize the filterbank’s parameters with a master clock. This allows for rhythmic control over the filter modes, perfect for live performance or studio sessions. Switching to the spectral analyzer mode can provide visual feedback, allowing you to see how your adjustments are affecting the overall sound spectrum.
Integrating the Expander module further enhances your capacity for real-time tweaking. This can be particularly useful when performing live, as it allows for immediate access to all bands without diving through menus or relying solely on CV inputs.
Finally, don’t overlook the module's ability to save presets. As you create unique sounds and configurations, save them to explore later. This feature is invaluable, allowing you to recall complex settings quickly during a performance or between studio sessions, ensuring continuity in your sound design workflow.
By diving into these practical applications, you will not only appreciate the depth of the Graphic Resonant Filterbank but also harness its power to redefine your sonic palette. It’s a versatile tool that can transform simple tones into intricate soundscapes, opening doors to unlimited creativity and experimentation.