How to amplify a microphone: In this period you usually make a large number of video calls and, more and more often, the people you talk to complain about the low volume of your voice; in light of this, you tried to record a few words using a special software and, alas, the result obtained was consistent with what you had learned: your voice is barely heard and it is difficult to understand what you say.
To work around this problem, you could try to intervene directly on the operating system you are using and try to raise the microphone volume via software: the problem is that you just don’t have the faintest idea of how to amplify a microphonebecause you’ve never done anything like this before.
Well, if this is the way things are, know that you are on the right guide for you: in fact, below I will explain in detail how to try to improve the performance of the microphone on computers, smartphones and tablets using a series of very simple steps which, above all, do not require any computer skills. Ready to go? All right, let’s get started then!
How to amplify a microphone: Windows 10
To be able to increase the volume level of a microphone connected or integrated in a PC equipped with Windows 10, it is sufficient to act from the appropriate operating system settings panel. Before continuing, remember not to exaggerate with the volume, nor with any level of pre-amplification applied: the final result may not be the best and generate whistles, creaks or other types of noise, certainly not pleasant for the listener.
Having made this necessary clarification, let’s see how to proceed. First, locate the icon of the volume in the Windows 10 taskbar (has the shape of a speaker and is located near theclock system), right click on it and press on the item Open audio settingslocated in the menu that appears.
Alternatively, right click on the button Start (the icon in the shape of flag located in the lower left corner of the screen), choose the item Settings from the menu that appears, click on the icon dedicated to System and then on the voice Audiovisible on the left side of the screen that opens.
Now, locate the entry Inputmake sure within the drop-down menu Input device the microphone to be amplified is selected (otherwise you do it) and click on the item Device properties; arrived at the new screen, click on the wording Additional device propertiesin order to open the appropriate section of the “classic” Control Panel.
At this point, click on the tab Levels and, to maximize the volume of the device, drag to the right cursor below the wording Microphoneuntil you reach the level 100 (or, in general, what you want to achieve).
As an added measure, if the volume is still not satisfactory, you can adjust the adjustment bar Microphone pre-amplification, in order to apply an additional gain in terms of volume; However, avoid setting this value to the maximum, as it could negatively affect the final quality of the voice.
Also, you should know that some dedicated drivers (such as RealTek ones, for example), allow you to improve the audio quality by applying sound effects, such as volume “normalization” or noise suppression. To activate them, click on the tab Improvements and put the check mark next to the items DC Compensation Cancellation And Noise suppression; if these items are “grayed out”, uncheck the box next to the item Disable all sound effects.
Once you have made the desired changes, click on the buttons Apply And OK, to make them operational and close the settings window. To check the actual goodness of the incoming audio, you can capture the sounds of the microphone and listen to them again, using the application Voice recorder Windows (found in the menu Start) or one of the many programs to record the voice available.
Please note that the information provided so far also applies to previous editions of Windows, except for how to access the screen dedicated to additional settings for the microphone.
To access it, in this case, open the Control panel directly from the Start menu, on the items Hardware and sound And Audio and, on the next screen, click on the tab Registration. Now, locate the first name of the microphone you are using (usually marked with a check) and double-click it to view its advanced properties.
How to amplify a microphone: Mac
At the time of writing this guide, there is no setting for macOS which allows you to obtain the preamp for the incoming audio signal. However, you can try to improve the quality of the sounds recorded through the microphone by increasing the recording volume of the microphone and applying ambient noise reduction, if available.
To do this, open the System Preferencesby clicking on thegear located on the bar Dockor by clicking on the menu Apple (the symbol of bitten apple located in the upper left corner of the screen).
Now, click on the icon Sound from the window that opens, click on the tab Entrance located on the next screen and select the first name of your microphone, among those listed in the box Choose a device for audio input.
Once this is done, move the slider corresponding to the bar to the right Input volumeto increase the microphone volume and make sure it is next to the voice Use ambient noise reduction there is a check mark (otherwise you can do it), in order to apply a software filter to exclude, as far as possible, the surrounding noises and offer a “cleaner” sound.
All adjustments set in this way are effective immediately; to verify that the quality of the audio acquired through the microphone is satisfactory for you, you just have to start the application Voice memos (found in Launchpad) – or another audio recording program of your choice – to record and then listen to your voice again.
How to amplify a microphone: smartphones and tablets
On smartphone And Tabletthings are slightly different: as far as Androidthere are applications that allow you to amplify the level of incoming audio, theoretically suitable for calls, video calls and recordings, by applying gain levels via software.
Not surprisingly, however, I said theoretically, as apps of this type do not always provide appreciable results: it all depends on the brand and model of smartphone (or tablet) in use, on the presence or absence of root permissions and, above all, on the version of Android currently installed on the device. Very often, moreover, amplification apps “block” the use of the microphone, applying the gain effects only inside them, but not for all the other apps (which are unable to access the microphone).
On iPhone And iPad things are even worse: for precise company policy, in fact, Apple prevents third-party developers from intervening on certain aspects of the operating system, including volume management and bypassing the values (or ranges) provided by the factory.
In light of all this, if the performance of the microphone on your smartphone or tablet is anything but satisfactory, I recommend that you clean it, eliminating residues of dust and dirt that have accumulated over time: I have you talked about this solution, which was decisive in most cases, in my guide on how to clean the microphone of the mobile phone.
Note: even a protective film, if applied incorrectly, could negatively impact the performance of the microphone. So, before even thinking about a possible replacement of the same, try to remove the existing film and test the operation of the microphone: if the problem were to be solved, apply the next layer of protection, making sure that the “holes” coincide with those present on the device.