Projects / Rakarrack


Rakarrack is a richly featured multi-effects processor emulating a guitar effects pedalboard. Effects include compressor, noise gate, graphic equalizer, parametric equalizer, flanger, chorus, echo with reverse playback, musical delay, reverb, digital phaser, analogic phaser, wah-wah, alien-wah, harmonizer, and three 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.

Recent releases

  •  08 Nov 2010 13:02

    Release Notes: New effects have been added, including OpticalTrem, Vibe, CompBand, and StereoHarm. New features have been added, including metronome, user internal presets, user bank directory, two new LFO types, a random preset generator, a MIDI program change table, and many GUI things. Effect improvements were made, including Compressor, Looper, RBFilter MuTroMojo, Echotron, and Sequence. Bugs were fixed.

    •  21 Jun 2010 10:33

      Release Notes: New features, including Tap Tempo, Resampling, and Analog Control Interface, have been added. Up to 23 new effects were added, including Vocoder, Valve, Dual Flanger, Ring, DistBand, Exciter, Arpie, Expander, Shuffle, Syhtnfilter, VaryBand, Looper, MuTroMojo, ShefBoost, Sustainer, Sequence, Shifter, StompBox, Reverbtron, and Echotron. Up to 13 new waveshappers have been added. Improvements include note reconigtion, a GUI, DC filter offset at the input, tuner calibration, and the ability to automatically connect JACK input ports. Bugs were fixed.

      •  22 Jan 2010 01:48

        Release Notes: New features have been added, including two new effects, Analog Phaser and Derelict Distortion, Limiter at the end of the chain, Four waveshape types for distortion effects, four LFO types for all the modulated effects, SubOctave, Compresor knee, automatic gain function and stereo mode, Reverse echo, Global Wet/Dry controller, jack MIDI, MIDI learn, scalable fonts, Background images, and new presets. Bugs were fixed, including data for big endian architectures like PowerPC, CPU usage related to computation denormal, and other minor bugs.

        •  25 Nov 2008 16:07

          Release Notes: New features include up to 84 MIDI control parameters, some GUI and configuration improvements, and a documentation rewrite. Bugs that were fixed include excessive CPU usage when no signal is received, MIDI implementation, draw things, shortcuts, and other minor bugs.

          •  10 Jul 2008 11:34

            Release Notes: New features including seven new effects: Harmonizer, Musical Delay, NoiseGate, AutoPan/Extra Stereo, Cabinet Emulation, WahWah, and Alienwah. External MIDI control, customizable preferences, the slider, and RGB color selector widgets were improved. Minor bugs were fixed.


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