K ResearchFatter STR (Electronic Delivery)

K ResearchFatter STR (Electronic Delivery)

K ResearchFatter STR (Electronic Delivery)

 KR-Fatter STR is a modular spectral enhancer hybrid plug-in processor using two different proprietary time and frequency domain dsp platforms in a single unit.

KR-Fatter STR

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This product will be delivered electronically. You will receive a serial number or license code via email along with a link to download the software. No waiting for software to come in the mail!

Most orders are delivered same day. Weekends and holidays may take a few days. Please be patient and know we will get you your activation information as soon as possible. Software is not returnable. Please ask if you need advice about compatibility or version.

KR-Fatter STR is a modular spectral enhancer hybrid plug-in processor using two different proprietary time and frequency domain dsp platforms in a single unit.

KR-Fatter STR is a modular hybrid plug-in processor using two different proprietary time and frequency domain dsp platforms in a single unit. The frequency domain platform used is Spectral Transformation Resynthesis (STR). STR is a digital signal processing (dsp) platform that operates exclusively in the frequency domain and makes use of specially developed spectral transforms for synthesis and audio effect design. At the same time, KR-Fatter STR is using specially designed time domain processing elements like for example fractal based variance controls. By combining these two platforms in a single unit, new more powerful effects can be achieved by rather using a single platform.

KR-Fatter STR can be used to enhance the spectral content of audio signals containing vocal, instrument or synthesized sound recordings. By using different combinations of the available modules KR-Fatter STR allows the creation of different effects like Fattening, Spectral Coloring, Imaging, Harmonizing, Pitch Shifting, Delay, Modulation and other Special effects. Special attention was given in the design of this processor in the use of Naturally perceived randomization of the available functions in order to produce a spectrally evolving output. These randomizations implemented using Fractal algorithms can transform dull static audio signals into vibrant, rich and natural sounding recordings.

The available modules and functions can be employed in both serial and parallel fashion to achieve different results. KR-Fatter STR can create up to an additional 4 stereo copies (total 10 mono channels including the dry signal) of the input signal which can be processed individually by applying modular effects and mixed together in a final master stereo output bus.



The modular effects available in KR-Fatter STR are:

    • Generic pitch-shifter: generate pitch related variations of the original audio signal
    • Animated pitch variation: produce animated pitch variations
    • STR color (STR transform filter): design thousands of different spectral color variations of the original input audio spectrum
    • Low frequency oscillator (lfo) modulation: give vibrato effect
    • Phase: add naturally perceived phase related variations
    • Amplifier: add naturally perceived amplitude related variations
    • Shelving equalizer (EQ): use to spectrally balance individual channels and/or the whole mix
    • Delay: use to create delayed copies of the input
    • Panning: use to create imaging effects or expansion. Thanks to the modular architecture, KR-Fatter STR is able to deliver the highest quality audio processing at low cpu costs modules add cpu cycles only when switched-on. This preserves maximum efficiency while making possible high performance on a wide range of cpu platforms.



Windows PC


Intel Core 2 Duo 2GHz

AMD Athlon 64 or higher

Operating System

Windows 7 32/64bit | Windows 8 32/64bit

Mac OS


Core Duo 2.3Ghz or higher

All Intel based Macintosh

Operating System

10.7.5 - 10.9.x



  Red Line Music is an authorized KResearch dealer.

Welcome to Red Line Music
Hello from Los Angeles and welcome to Red Line Music! My name is Matt Clark. I'm a producer and musician. I started this company to provide an alternative to the big chain music stores. I'm passionate about writing, recording, and performing music. I can tell you from a lot of experience that having the right tools makes life easier. Anything that helps you make better music faster is a winner in my book. That's what this site is all about.

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