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Guitarix is a modular, virtual amplifier. With Guitarix you can choose different preamp and amp models, combine them with various effects and speaker cabinet emulations to come up with your very own tones.

Ultimate Guide to Getting Started with Guitarix


A wet/dry setting is used to balance the processed (wet) signal with the unprocessed (dry) signal. This is a common setting on reverb plugins to control how much of the affected signal you want mixed in with the original.

Digital distortion

Digital distortion is what happens when a signal goes above 0dBFS. Audio cannot be represented above this point and will distort. Digital distortion is particularly harsh sounding.


Automation is a system that memorizes and then plays back the position of faders, plugin controls, etc. Automation can be drawn/programmed in, or else inputted in realtime using a mouse or midi controller.

Automation in Ardour
A fader automation lane in Ardour, controlling the level of the fader


A pre-delay setting is found on some reverbs. This setting allows you to set the length of time (in milliseconds) before the onset of the reverb, after the dry signal. This mimics how direct sound and sound reflections in a room arrive at our ears at different times. A short pre-delay will sound as if it is at the room boundaries, whereas a longer pre-delay will be perceived as being closer.

MIDI Controller

A MIDI controller is any device that sends out MIDI data to control another MIDI device or program. Some MIDI controllers are also capable of recieving MIDI data. Two examples of a MIDI controller would be a MIDI keyboard which can be used to control softsynths/external hardware synths or a MIDI DAW controller used to control fader/pan levels in your DAW as well as other things such as plugin parameters.

Calf Plugins

Calf Plugins

Calf plugins are a complete plugin suite, in the LV2 plugin format, that cover all your basic processing needs. From processors like EQ's and compressors to effects like reverb and delay, it covers all you need to get mixing. It also includes a number of virtual instruments. The suite currently consists of 45 plugins.



LMMS (Linux MultiMedia Studio) is a MIDI sequencer, aimed at producing electronic music. It comes with it's own built in virtual instruments but also has support for third party plugins.



Carla is a plugin host that has extensive support for plugin formats. It can be used as a standalone program for live use but can also be incoporated into modular recording set ups, and includes a built in graphical patchbay . As well as plugins, Carla can also load up GIG, SF2 and SFZ sample packs.


Not a setting on every compressor but some compressors have this option. This is related to how the threshold takes affect. A soft knee will introduce the compression more gradually, whereas a hard knee setting will be more abrupt. Both have their place but soft knee compression is considered to have a more pleasing effect.


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