GNUitar is an application that will allow you to take advantage of your computer to perform all kinds of processes with your guitar, which stands out, especially for being an open-source application that we can use for free. Besides, we are talking about a portable system, considering that you download a compressed file inside which you will find the executable, and from there, you can perform all the tasks you want.

When you open the application, you will find a somewhat obsolete interface, which is not the best we can see now regarding this type of program, but it is very clear thinking about the contents to be displayed. We are in the presence of a screen divided into three panels; this way, it is very easy to view the contents that correspond to each of them.

Thanks to this application, some of the main functions you can perform have to do with the distortion of the sound of the guitar, and if you want, you can also modify how you can hear the voice of the person singing along with it. Of course, all of this is based on having a microphone connected to the equipment, which will be in charge of obtaining the information we can edit, thanks to the program in question.

What kind of effects can we find in GNUitar? Some of the traditional ones when we talk about audio files, such as noise reduction, are essential to obtain a more harmonious piece. But you will also find other very famous ones, such as reverb, equalizer, vibrator, different options thinking about distortion, and many others of great relevance in these cases.

You have to remember, whichever effect you like, that all of them are produced in real-time on top of the recordings we are making, so we will not be editing audio files but the audio that our microphone captures live.

And as if that were not enough, the vast majority of the effects included in the program are perfectly configurable, so you can make the changes you want on top of them, such as deepening or attenuating them, to suit your needs. This way, it is highly probable that you will always find the perfect result you were looking for.

Moving on to the interface, which, as we said, is divided into three areas very well unmarked between them, we have to say that in the left area, we can see the available effect designs. At the same time, in the central part appear the effects that are being used on the audio in real-time, and finally, on the right side, you will see all the single effects that can be applied.

A detail you must consider when using this program is that although it is not too exaggerated in terms of the system resources it consumes, it is true that when you have it open, it is placed as a computer priority. This can mean that if you don't have a very powerful PC, you may notice that any program running in the background slows down your PC.

Of course, if you wish, you can obtain a file with the recordings in real-time and the modifications you have made, considering that this application works with the WAV format, one of the most famous in the segment. From that generated file, you can send it through social networks, upload it to YouTube or do anything you want.

Another important issue that you should not lose sight of is that this application is available only in English, something that, although it could be a problem for some users, does not mean a great inconvenience in these cases. Most of the effects are also known in other languages through English derivatives; therefore, we do not consider this issue insurmountable.

Finally, and as we pointed out at the beginning, you have to know that this program is completely portable since it can be used from the executable, meaning that you can take it in your portable memory, place it in any computer you use during the day, and in just seconds access GNUitar. This quality is undoubtedly a differential factor for those users who move from one place to another all the time.

In summary, we can say that this program is one of the best current alternatives for all those users who want to make modifications in real-time to the guitar recordings they make on their computer's microphone. Issues such as the enormous amount of available effects, the simplicity of its interface, or the fact that it is free and open source are more than enough reasons to recommend it.