Exploring the Versatility of Popple: The Multi-Mode Stereo Filter Based on Mutable Ripples V1

The After Later Audio Popple is an impressive 8hp multimode stereo filter based on Mutable Instruments Ripples V1 filter section. The module delivers the smoothness that characterizes the Ripples filter while offering two separate audio paths with shared resonance and frequency cutoff controls along with CV inputs. This combination provides an excellent level of control over harmonics, cutoff frequency, and resonance, allowing for versatility in sound shaping.

One of the most notable features of the Popple is its ability to self-oscillate at high resonance settings, allowing it to work as a sine wave oscillator with the v/oct CV control. This feature permits dual sine wave oscillation, adding to the creative potential of the module.

The Popple accomplishes this while maintaining high sonic quality sound output. It gives each channel its cutoff CV input with attenuverters, which are normalized to a 2.5V signal. The module also has resonance CV input, which controls the cutoff frequency, allowing for additional sound shaping options.

The shared resonance control makes it easy to work with, while the two separate audio paths provide maximum flexibility in sound output. This feature set is ideal for a wide range of applications, from synthesis to sound design.

To conclude, the After Later Audio Popple is an excellent and flexible filter option for any Eurorack setup. Its capabilities in self-oscillation, dual sine wave oscillation, and the ability to shape sound make it an ideal module for any sound creator, producer or musician.

Example Usage

If you're new to using filters in your eurorack synth setup, Popple is a great introduction. Start by patching an oscillator into one of Popple's audio inputs and send the output to your mixer. Turn the "cutoff" and "resonance" knobs to hear how they affect the sound. You can also try using an LFO to modulate the cutoff frequency or resonance, which will create a more dynamic sound. Experiment with different filter modes to hear the different characters they add to your sound.

Set up a patch using Popple as a filter and a dual sine wave oscillator. Patch a VCO into the Popple's input, and route one output of Popple to an amplifier or VCA, and the other output to a mixer or second amplifier/VCA. Set the cutoff frequency and resonance control to taste, and modulate with an LFO or envelope generator for some movement. Adjust the cutoff CV inputs with attenuators for precision control. Use the v/oct cutoff CV input to control the pitch of both channels simultaneously and create pitch-shifting or FM-like effects. Then, turn up the resonance control to self-oscillate and tweak the cutoff control and resonance CV input to fine-tune the oscillation.

Further Thoughts

The Popple module is a great tool for adding some edge or texture to your sound. One way to use it is by turning up the resonance and playing with the cutoff frequency control. You can then use the CV input to automate changes to the resonance and cutoff frequency, creating a dynamic and evolving sound. By splitting the signal into two audio paths, you can add even more complexity to the sound by routing different filters to each path and tweaking the settings independently. If you're feeling adventurous, try turning up the resonance all the way and playing with the v/oct cutoff CV input to create some unique and experimental sounds. Remember to keep exploring and experimenting to unlock the full versatility of the Popple module.