How to connect a guitar?

Question

linux

Bought my first electric guitar. There is no amplifier yet, but I want to test it. There is a cord and an adapter for a 3.5mm jack. On the computer at the moment ElementaryOS (the same Ubuntu is shorter). Connected to the back of the microphone input. In the settings there is an indicator showing the sound level from the microphone - judging by it, everything connected normally (when I pull the string, the level jumps). But there is no sound in the speakers at the same time ... Tell me what's wrong?
PS And one more question to catch up. I installed Guitarix (an open source analogue of Guitar Rig - software for creating guitar effects), but when it starts it tries to start some kind of jack and an error occurs:
system init *** mlockall failed:
Jack Init *** unknown jack server communication error
True, the software starts without it, but I suspect that this is somehow not good ... What would it mean?

Answer 1

In order for the sound quality to be decent, you should connect the guitar through a specialized amplifier that has an instrument input. For example, an external audio interface Scarlett FocusRite
Sound sources can be of three types - a line signal, a signal from a standard dynamic microphone, a signal from a guitar.
All three sources differ in electrical parameters - voltage and resistance, and if you mix them up, you can either burn something or get a terrible sound.
jack is a virtual patch panel for creating an audio processing chain. With it, you can connect the inputs and outputs of audio interfaces and sound processing programs.
Obtaining acceptable sound quality by open source means is not a trivial task that requires detailed study. The main problem here will be delays in the signal processing path, and as a result, the actual impossibility of performing works normally.
If under Windows there are quite a lot of various guides, and it usually comes down to installing ASIO and GuitarRIG, then under Linux you will have to pick a lot manually.

Answer 2

At the very least and cheap - you need a preamp

Answer 3

Firstly, you need to install a jack server, without it guitarix and rakarrack will not work at all.
Secondly, you need an rt core and, in general, for bubuntu, there seems to be a rap for working with sound, where everything is set up out of the box, because a lot of all sorts of special crutches have been invented to interact with jack, which are not the fact that they are dragged along dependencies in desktop distributions, so as not to break the hell there all multimedia ;-)
ps.
pps.and for distortion and overdrive, it’s still better to use a pedal, some kind of sansamp, because soft distortion \ overdrive, the slightest shit of sound will multiply dozens of times, so Lel and Zoom weren’t next to each other ;-)

Answer 4

Try reading here if it doesn't work.