KR-Fatter STR is a modular hybrid audio processor that integrates two proprietary digital signal processing platforms, operating in both time and frequency domains within a single plug-in. Designed to enhance the spectral qualities of various audio sources such as vocals, instruments, and synthesized sounds, it offers an expansive range of creative possibilities. Users can apply different combinations of modules to sculpt unique audio effects, including fattening, spectral coloring, imaging, harmonizing, pitch shifting, delay, and modulation.

This processor emphasizes naturally perceived randomization through fractal algorithms, allowing the audio to evolve dynamically over time. These sophisticated randomizations transform static or lifeless recordings into rich, vibrant, and organic-sounding outputs, adding depth and interest to any mix. KR-Fatter STR supports both serial and parallel processing, enabling the creation of up to four additional stereo copies of the input signal. Each copy can be independently manipulated with modular effects before being blended into a polished stereo master output.

The extensive range of modular effects includes pitch shifting for generating variations, animated pitch modulation for vibrato-like textures, and a spectral transformation filter that can produce thousands of color variations. Additional modules provide low-frequency oscillation, phase and amplitude variations, shelving equalization for spectral balancing, delay for echo effects, and panning for spatial imaging and expansion. This comprehensive suite of tools makes KR-Fatter STR a powerful processor for shaping and enriching audio in creative and innovative ways.