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 special software and, alas, the result obtained was consistent with what you had learned: your voice is barely audible and it is difficult to understand what you are saying.
To overcome this problem, you could try to intervene directly on the operating system you are using and try to turn up the volume of the microphone via software: the problem is that you really don’t have the faintest idea of how to amplify a microphone because you’ve never done anything like this before.
Well, if this is the case, know that you are right on the guide that is right for you: below, in fact, I will explain to you in detail how to try to improve the performance of the microphone on computers, smartphones and tablets using a series of very simple steps and which, above all, do not require any computer skills. Ready to go? Great, let’s get started then!
How to amplify a microphone for Windows 10
To be able to increase the volume level of a microphone connected to or integrated into 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, crackling 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 (it looks like a speaker and is located near theclock system), right-click on it and press on the entry Open sound settingslocated in the menu that appears.
Alternatively, right-click 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 that within the drop-down menu input device the microphone to be amplified is selected (otherwise you do it yourself) 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.
Now click on the tab Levels and, to turn up the volume on the device, drag the to the right cursor below the wording Microphoneuntil you reach the level 100 (or, in general, what you want to achieve).
As an additional measure, if the volume is still not satisfactory, you can adjust the adjustment bar Microphone preamplifier, in order to apply a further gain in terms of volume; however, avoid setting this value to maximum, as it could negatively affect the final quality of the voice.
Furthermore, 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 a check mark next to the items DC Compensation Cancellation And Noise suppression; if these entries are “blacked out”, uncheck the box next to the entry Disable all sound effects.
Once you have made the desired changes, click on the buttons Apply And Okay, to make them operational and close the settings window. To check the actual quality of the input audio, you can capture the microphone sounds and listen to them again, using the application Voice recorder Windows (found in the menu start) or one of the many voice recording programs available.
Keep in mind that the indications provided so far also apply to previous editions of Windows, except for how to access the screen dedicated to the additional settings for the microphone.
To access it, in this case, open the Control Panel directly from the Start menu, on entries Hardware and sound And Audio and, having reached 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 on it, to view its advanced properties.
How to amplify a microphone: Mac
At the time of writing this guide to you, there is no setting for macOS which allows you to obtain pre-amplification for the incoming audio signal. However, you can try to improve the quality of the sounds recorded via 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 the icongear located on the bar Docksor 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 of Sound from the window that opens, press 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 cursor corresponding to the bar to the right Input volumeto increase the microphone volume, and make sure next to the voice Use ambient noise reduction there is a check mark (otherwise you do it), in order to apply a software filter to exclude, as far as possible, the surrounding noises and offer a “cleaner” sound.
All the adjustments set in this way are effective immediately; to check that the quality of the audio captured 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 later play back your voice.
How to amplify a microphone: smartphones and tablets
On smartphones And Tabletthings are a little different: as regards 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, though, 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, the presence or absence of root permissions and, above all, the Android version currently installed on the device. Furthermore, very often amplifier apps “block” the use of the microphone, applying gain effects only within them, but not for all other apps (which are unable to access the microphone).
On iPhones And iPads 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 advise you to clean it, by eliminating dust and dirt residues that have accumulated over time: I have I talked about this solution, which is 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 replacing it, try removing the existing film and test the microphone’s operation: if the problem is resolved, apply the next layer of protection, making sure that the “holes” coincide with the those present on the device.