How to eliminate background noise from the microphone

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Pau Monfort
@paumonfort
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How to remove background noise from the microphone

Very often, when making a registration, not enough attention is paid to the device used to record. You may in fact think that the microphone background noise problem is due to the software used to record, but, as you will read in the next chapter, it is possible that your recording problems are solvable. changing the microphone or, if you already have a decent quality microphone, use some simple tricks to be applied to the latter.



Purchase a good quality microphone

For a good quality recording, it is essential to have a good quality microphone. Contrary to what you might think, however, a microphone capable of recording clearly and cleanly does not necessarily have to have a particularly high cost. I have selected for you some of the best microphones suitable for different uses.


If you are looking for a good microphone that knows how to combine quality and price, I recommend you buy the Trust GXT 232 Mantis which, thanks to its characteristics and its competitive price, will allow you to make great recordings in all simplicity. The presence of a pop filter included and the very stable tripod make this device an excellent economic choice from all points of view, together with the fact that the connection to the PC is of the digital, using the USB steard.


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If you'd rather invest more money to get a higher-quality device, I present to you the Tonor USB condenser microphone. This digital microphone, in fact, features not only a pop filter and a windscreen included, but also comes with a professional sound chip able to hele recordings in a completely clean way and with a very faithful audio.

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Finally, I want to point out an even more advanced microphone, suitable for anyone who wants to get the maximum audio fidelity without having to worry about background noise or distortions of any kind. I'm talking to you about the Trust Gaming GXT 252 Emita Plus, a digital microphone that, thanks to the windproof and anti pop filters included and thanks also to integrated sound chips, is capable of providing the highest audio quality and the ultimate in recording convenience.

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Use a windproof sponge


If you already own a microphone and don't plan on swapping it for a more advanced model, don't worry - you can always add one to your device. windproof sponge. This type of filter, in fact, allows you to physically eliminate the entry into the microphone of many background noises, such as wind or some environmental disturbances data for example from household appliances such as fans, air conditioners or other.


Depending on the diameter of your microphone, you may need to purchase a different sized windproof foam. Precisely for this reason I have selected for you some of the best windproof sponges suitable for any device.

La Neewer windproof sponge, for example, it is suitable for most condenser microphones, thanks to its elasticity and steard measures of 4,5 x 4,5 x 12 cm. If, on the other he, you have a smaller microphone or type microphone lavalier of 6,3mm in diameter, I recommend that you buy a set of AMACOAM wind filters which, thanks to the foam composition and the quality of the filters themselves, allow a clean recording with any microphone that has a compatible diameter.

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Other useful tips

In any case, whether you've decided to buy a new device, a windscreen, or you've chosen to keep your current microphone, let me give you a few more. advice, I hope valid, to greatly improve the quality of your recordings.

  • Keep the right distance from the microphone - contrary to what it may seem, not always approaching the microphone means improving the quality of the final reont. An excessive proximity, in fact, could lead to audio distortion that would prevent the realization of a quality recording. Always keep at least 10cm away from your microphone to avoid these situations.
  • Do not place the microphone towards noise sources - even if it may seem obvious to you, this advice is often ignored. Most microphones, in fact, pick up sound waves in a directional or semi-directional way, and could significantly worsen the recording quality if exposed, for example, to open windows, crowded environments or appliances such as air conditioners, fans or the like.
  • Keep the microphone and filters clean - always make sure that the microphone and any wind or pop filters are clean and free from obstructions. It is not uncommon, in fact, that the need to amplify the microphone volume due to incorrect maintenance causes distortions and audio artifacts that are difficult to eliminate.

How to eliminate microphone background noise on Windows 10

Very often, despite the precautions and the use of quality devices, we find ourselves with unclear recordings or excessively disturbed by background noise. If it happened to you too and you are wondering how to fix this problem on your PC with Windows 10, keep reading: in the next chapters, in fact, I will explain in detail the use of some software able to eliminate the background noise of the microphone through different approaches.


Nvidia RTX Voice

I know what you're thinking: you're wondering how it can Nvidia, manufacturer of video cards, help you in recording audio without background noise. Well, even if Nvidia specializes in the production of video cards and software related to them, it is from this company that comes one of the most innovative software able to clean the incoming audio and therefore to eliminate the background noise.

Nvidia RTX Voice (this is its name) exploits the enormous potential of new generation video cards to process the audio stream coming, for example, from the microphone in real time. Using complex algorithms based on Tensor Core, the components of video cards often used in artificial intelligence operations, Nvidia promises to solve audio noise problems almost completely without any kind of final distortion.

In order to use Nvidia RTX Voice, the only requirement is that of have an RTX video card produced by Nvidia. The Ray Tracing technology, in fact, is the basis of this utility and allows the exploitation of the enormous computing capacity of the graphics processors in question. Finally, be sure to update your video card drivers to ensure full compatibility of the video card with Nvidia RTX Voice.

Once this is done, open your browser and head to the Nvidia RTX Voice download page and click on Download the app to start the software download. Once done, locate the executable file just downloaded and double click on it to run it. If you have an RTX video card, the program will automatically install the RTX Voice.

On the screen that was just proposed to you, be sure to select from the menu Input device your microphone and from the menu Output device your audio playback device. In addition, to enable the microphone noise reduction function, click on the tick Remove background noise from my microphone and drag theindicator of the percentage of suppression about halfway noise. You will be able to change this last parameter in the future, depending on the reonts obtained and your personal preferences.

The last step to take in order to take advantage of RTX Voice in your recordings is to select the software as the default audio input. To do this, search Control Panel in the search field next to the button Home (the flag icon located in the lower left corner of the screen) and select the first occurrence returned.

Now press the menu item Audio and click on the tab Recordings. In the list of recording devices, you will notice the appearance of a microphone called Nvidia RTX Voice, created by the newly installed software. Then right click on it and hit the menu item Set as default device in order to allow any audio capture program to take filtered audio from RTX Voice.

So you can use RTX Voice to make recordings or direct with software like OBS or simply make your calls clearer on services like Skype or Zoom.

Audacity

Sometimes you may not be able to completely eliminate the background noise of the microphone even though you have performed all the operations described up to now.

In this case, you can work in post production on the recording file you obtained in order to eliminate background noise. To do this, you can use Audacity, a free and open source software agolable for all popular operating systems, capable of performing useful editing operations on audio files. If you don't have it yet, I recommend reading my guide on how to download Audacity to get this program in no time.

Once Audacity is open, you can decide whether to record audio by pressing the button with a red dot placed in the top center or whether to import a recording at your disposal by pressing going to the menu File> Open (top left).

With the file imported or recorded, look for a point on the graph where the background noise is well present e, instead, there is no voice or other sounds that you do not want to remove.

At this point, press and hold the left mouse button and select the portion of audio containing only background noise. I strongly recommend that you click the ▶ ︎ button, top left, to listen to the selected audio and make sure it contains only background noise.

Once this is done, go to the menu Effects> Noise Reduction (up). Then press the button Process background noise and wait for Audacity to analyze the background noise present. Later, press twice quickly on the sound wave to select it completely, then click the menu again Effects and choose the item again Noise reduction da quest'ultimo.

At this stage, you can set the noise reduction parameters. The value Noise reduction (dB) indicates lowering the volume of the portions of audio containing background noise. Depending on the final reont, you can raise or lower the value of this parameter.

the options Sensitivity and Frequency smoothing (bes) instead they indicate to the software the precision to be used in recognizing the background noise. The higher these parameters are, the more precisely the background noise will be isolated; at the same time, however, an excessive value could lead to less effectiveness of the audio cleaning activity.

Once you have set the parameters according to your preferences, click on the button Preview to hear a small portion of processed audio. If you are not satisfied with the reont, you can adjust the parameters to improve it. When you feel satisfied, press the button Ok, to process the entire file.

Now that your registration is clean, go to the menu File> Export, at the top, and choose theMP3 or the format in which you want to export the song. In the window that opens, then choose the name you want to give to your recording and press the button Save.

Audacity also allows you to insert some information into the file, such as the author's name or other entries: once this is done, press the button Ok to finally save your processed registration.

How to eliminate microphone background noise on macOS

If you own a Mac and you're wondering how to eliminate background noise from the microphone using the latter, I have good news for you: you can follow the advice I just gave you on Apple computers too, with a few small differences. Unfortunately, in fact, Nvidia RTX Voice is not agolable for macOS, while the suggestions in the chapters regarding the choice and use of a microphone and the use of Audacity can be applied without problems.

How to Eliminate Microphone Background Noise on Android

If you want to make an audio recording with your Android smartphone or tablet and want to make sure you don't run into problems with background noise, you can turn to various apps among those agolable on the Play Store and on the alternative stores for devices without Google services.

Among the solutions you can turn to, I would like to point out the free app: Voice Recorder – Noise Filter which allows you to record audio from the microphone by automatically applying a truly effective noise reduction filter.

Once the application is installed (by looking for it in the store of your device, by pressing on its name and then on the button Install), start it and tap the button Home, and then grant you the required permissions.

Once this is done, you can immediately record from the microphone of your smartphone or tablet by pressing the button with the design of the microphone, in the center of the screen. To stop recording and save it, instead, tap on the button with the drawing of a check.

If you want, you can also decide to pause the recording by pressing the button with the drawing of two bars in the center, or to cancel the recording in progress, by pressing the button with the drawing of a cross placed on the left.

After recording, you can listen to it again by pressing the button Play on the left, in order to check the quality of the file obtained.

When you are done, you can share your recording through the button with the icon Share on the right, or close the screen by pressing on X. Also remember that all your recordings are agolable by tapping on the tab Library present at the top of the app. Simple, right?

How to Eliminate Microphone Background Noise on iPhone

Su iPhone and iPad there is a music production app, developed by Apple itself and agolable for free on the App Store, called Garagebe. With the latter you can not only record and create musical compositions with ease, but also record your own voice and apply noise reduction filters.

To take advantage of this possibility, install Garagebe (by searching for it in the App Store, pressing on its icon, then on the button Ottieni / Installa and verifying your identity through Face ID, touch ID o password dell'ID Apple); then start it and create your voice recording by pressing the button +, top right, and then on the option Audio recorder on your pulse Rec (up).

Once the recording is created, it activates the visualization in graphic style (the icon with the horizontal bars located at the top left) select the point on the graph where there is background noise, access the Garagebe menu (by pressing the icon with the equalizer bars present at the top left) and go to the path Plugin ed Eq > Noise Gate, then adjust the value Threshold according to your needs (press the ▶ ︎ button to listen to a preview of the final recording).

When you are satisfied with the reont, you can export it by going to the menu My songs, by performing a long tap on the icon of the registration you made by selecting the option Share from the menu that opens e, finally, choosing whether to export everything as passage, ringer o project.



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