The Resonating Bar module feeds through a Comb Filter and reverb. An ADSR envelope is used modulate the Resonating Bar cutoff and to poke the chaos of the 1-Op Chaos module. The Chaos X output is used to provide FM modulation, with the envelope controlling the FM depth. This give a sort of varying squelchy burble to the sound.

The Reaktor Blocks patches are mainly based around Unfiltered Audio/Michael Hetrick Euro Reakt and Free Edition for Reaktor 6.3+ (found at https://www.unfilteredaudio.com/collections/reaktor).

The download zip files include both the rack (.nksr) and ensemble (.ens),

Reaktor version used: 6.5.0

My Reaktor paths:
Documents Native Instruments/Reaktor 6/Blocks/Euro Reakt
Documents Native Instruments/Reaktor 6/Blocks/Euro Reakt – Free Edition
Documents Native Instruments/Reaktor 6/Blocks/Petras/Racks