PolyRes Resonator

POLYRES was inspired by the Resonators section in one of the first polysynths - Polymoog™ synthesizer.

The resonators consist of three parallel filters, globally switchable between HP, LP and BP modes.
Three individual resonant filters are band-limited, each with their own frequency range (LOW 60-300 Hz, MED 300-1500 Hz, HIGH 1500-7500 Hz).
Turning up Emphasis for each band creates individual peaks (resonances), called Resonators.
While the effect sounds interesting, Resonators in the early era of polysyths were 6 db/oct filters that passed too many harmonics, resulting in a buzzy sound, even at maximum resonance. This isn’t very useful for formant sounds because there aren’t any overlapping frequencies between the bands.

POLYRES has the same three resonant filters with Cutoff, Emphasis and Gain controls for Low, Medium and High bands. POLYRES also includes original HighPass, LowPass and BandPass modes.
Plus Slope modes (12 dB/oct or 24 dB/oct) which help incoming signals sound more clear and stable.

POLYRES resonator are an exclusive audio effect, designed in the earliest era of audio processing in the synthesizer industry. Every sound at “The Model” by Kraftwerk makes use of the resonator section of the original synthesizer.

POLYRES audio processor is a 3-band resonant filter system, which reproduces the character of the musical sound used by many musicians and allows you to capture that nostalgic sound of 70s.

Try out this legendary 3-band resonator today.

PASS MODE: Original hardaware resonator section in early polysynth has a three-position PASS MODE switch that selects filter mode for all three resonator bands (Low, Medium, High).

LOW-PASS: Allows frequencies below the cutoff frequency value to pass through, but blocks frequencies above the cutoff frequency value.
HIGH-PASS: Allows frequencies above the cutoff frequency value to pass through, but blocks frequencies below the cutoff frequency value.
MEDIUM-PASS: Combines LowPass and HighPass modes, saving signal sound in the middle. The cutoff frequency is halfway between the slope of the decline on each side.

SLOPE: A filter cuts the signal level at a specified frequency. The slope is measured in decibels of gain reduction per octave. Slope set the charatcer of how the filter works and affects to the frequencies above and below the cutoff frequency.
12 dB/oct: clearer and brighter character.
24 dB/oct: tighter and darker character.

ENABLE:
BYP/ON/OFF BYPASS - disable effect
ON - enable effect
OFF - mute incoming signal

LOW RESONATOR:
CF: Cutoff Frequency sets the frequency of the parametric Low-Band (60 - 300 Hz).
EMPHASIS: Resonance parameter: Emphasis signal around the selected cutoff frequency of the Low-Band by adding feedback from the Low-Band filter output.
GAIN: Adjust the volume control of Low-Band Resonator. This resonator can be muted if Gain = 0%

MEDIUM RESONATOR:
CF: Cutoff Frequency sets the frequency of the parametric Medium-Band (300 - 1500 Hz).
EMPHASIS: Resonance parameter: Emphasis signal around the selected cutoff frequency of the Medium-Band by adding feedback from the Medium-Band filter output.
GAIN: Adjust the volume control of Medium-Band Resonator. This resonator can be muted if Gain = 0%

HIGH RESONATOR:
CF: Cutoff Frequency sets the frequency of the parametric High-Band (1500 - 7500 Hz).
EMPHASIS: Resonance parameter: Emphasis signal around the selected cutoff frequency of the High-Band by adding feedback from the High-Band filter output.
GAIN: Adjust the volume control of High-Band Resonator. This resonator can be muted if Gain = 0%

UPDATE 1.1.2

• Add labels to steps of Pass Mode and Slope mode
• Drive CV Input
• Dry/Wet CV Input

UPDATE 1.1.0
- Dry/Wet knob (set mix levels between the Polyres FX processed signal and dry incoming signal).
- Dry (incoming) signal level
- Wet (processed) signal level
- Main master output level
- Drive knob (overdrive with compression)
- new Slope mode: 6 db/oct
- CV trims for all CV-inputs
- GUI changes (selectors of PassMode and Slope changed to the displays)

v. 1.0.0: release

All product names, trademarks and registered trademarks, artists names and brands, bands names are the property of their respective owners. All companies, products and service, artists and bands names, manufacturers names and model designations used are for identification purposes only and are not intended to infringe on the copyrights of their respective owners. Use of these names, trademarks, brands, artists names does not imply any affiliation or co-operation with or endorsement by them with Turn2on.