Rakarrack Logo

rakarrack screenshot


Rakarrack is a richly featured multi-effects processor emulating a guitar effects pedalboard.  Effects include compressor, expander, noise gate, graphic equalizer, parametric equalizer, exciter, shuffle, convolotron, valve, flanger, dual flange, chorus, musicaldelay, arpie, echo with reverse playback, musical delay, reverb, digital phaser, analogic phaser, synthfilter, varyband, ring, wah-wah, alien-wah, mutromojo, harmonizer, looper and four flexible distortion modules including sub-octave modulation and dirty octave up.  Most of the effects engine is built from modules found in the excellent software synthesizer ZynAddSubFX.  Presets and user interface are optimized for guitar, but Rakarrack processes signals in stereo while it does not apply internal band-limiting filtering, and thus is well suited to all musical instruments and vocals.  Rakarrack is designed for Linux distributions with Jack Audio Connection Kit.



Some demos made by our collaborators and the Rakarrack Team:  

Carlos Pino:rak-128

Carlos Pino:viajes

Ryan Billing with Stompbox models, Reverbtron, Echoverse and Looper 1 2

Ryan Billing Cut a bunch of sections along the development of a jam with Looper, Reverbtron, Convolotron, Stompbox, Dual Flange, Analog Phaser, Sustainer and Expander 1

Ryan Billing:unprocessed  with Distortion, Reverb and Cabinet: rakarrack

Ryan Billing:1 2 3 4 5 6 7 8 9 10 11

djshaji:The Sound of Evolution


Check our blog for view and comment the news about Rakarrack, fixed bugs, improvements added in the CVS version etc.


Some people ask for an attractive simple GUI, something like guitar rig, but we don't have the time. We need GFX artists and somebody with time to do some GUI designs. If you want to get involved you can contact by email with us, or in Freenode IRC channel #rakarrack.


Most of the effects are based on the magnificent work done by Paul Nasca Octavian in ZynAddSubFX synthesizer. The compressor is based on ArtsCompressor of Matthias Kretzer & Stefen Westerfeld. The tuner was adapted from tuneit, a tuner in text mode created by Mario Lang. Some of the new effects are based in the work done by Steve Harris in their LADSPA swh-plugins. Paul Nasca is our hero and a continuous inspiration.

Thanks to Timothy Anderson for this Logo.

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