Audio is one of the elements that we most commonly use when talking about multimedia content, where we also include videos or photographs. But focusing on the sound, the truth is that working with MP3 files is something that has been extended a lot, for which Audacity will help us.
We already refer to the audio files we create with music, voice recordings, or sounds of all kinds, these contents can already be edited in many ways. For all this we can use several specific tools, many of them free. However, one of the most popular is Audacity , a free application that we have already talked about on some occasions in the past and that you can download from here .
That is why for all those who want to edit their audio files in MP3 or any other format, this will be a great solution. In fact, many users use the program to cut parts of the audio tracks, edit personal recordings, join files, normalize their volume, etc. At the same time this application offers us some basic functions that will be of great help in these tasks.
For this reason, we will talk about a series of tricks with which you can improve the sound quality of your recordings from the aforementioned Audacity.
Amplify certain parts of an audio track
It may be the case that some parts of the recording or sound file are heard too low in relation to the rest. Therefore, Audacity can help us in all this in a simple way. The first thing we should do is load the audio file as such into the application. Then we mark the part that is heard too low with the mouse pointer, on the signal of the track that appears on the screen.
Once that part is marked, we only have to go to the “Effect” menu and select the “Amplify” option. Here we can specify the level of decibel increase for that part of the specific audio.
Eliminate background noise from your MP3
Another of the most common defects in audio files is the popular background noise that is sometimes generated. These are normally created if we are making a homemade recording, whether music or voice, which can become a problem. So again, we can use Audacity to make all this work and we can eliminate that annoying background noise.
As in the previous case, the first thing will be to mark with the mouse the part of the track where we detect the noise, so we highlight it. Next, we go to the menu "Effects / Noise Reduction". Here we click on the “Get noise profile” button so that the program starts up and eliminates that annoying background noise by itself.
Eliminate distortions of your recordings in Audacity
When we work with these audio files, we can also find certain parts that are distorted, something that will also help us the application that we are going to talk about here. To do this, once we have the track signal on the screen, we have to locate the exact part where we hear this distortion, so we mark it.
Next, we go to the "Effects / Distortion" menu to display the customization window. In it we will have to specify the level of clipping to delimit the decibels of what is considered as distortion. With everything and with it we can leave the default parameters, but we must specify the type of distortion with which we deal.
Add echo to your audio recordings
The echo that sometimes appears in our sound projects, is an effect that, depending on the type of work, can be an interesting addition to these works. Although initially adding this particular effect may seem somewhat complex, it really isn't. Thus, again Audacity becomes an ideal solution, since it proposes a function to add this that brings a more professional touch.
To do this we return to the "Effect" menu, although in this case, after selecting the part of the track, click on the "Eco" option. This gives way to a new window in which we specify the delay time for the effect itself to be added, such as its depth. Say we have a preview button to check the changes in real time.
Normalize the volume of your audio tracks
When we talk about normalizing the volume of an audio file, we really mean that everything we select sounds at the same level. This is something we can do for the entire track, a part of it, or for several. This is a recommended function if we are going to share that audio file with others, for example. And those ups and downs are very annoying and do not look good.
To solve this error, click on the "Effects" menu again, then select the "Normalize" option. Here we can set the level of normalization, although it is advisable to leave the one, we found by default. Of course, before accepting the changes, we can see how the audio will look from the preview button.