How to remove microphone noise: why the microphone is noisy, how to remove microphone noise in Skype

When using a microphone, built-in or portable, problems such as noise, crackling, hissing may occur. In order not to do the same work once again in order to get rid of the noise in the headphones of the computer, we recommend that you study this issue in detail. We will talk about possible sources of malfunction and methods of restoring the device’s health in our article.

Why is the microphone noisy

If you encounter various noises in your device, there may be several reasons:

low quality of the used device;
its increased sensitivity;
errors in the settings;
malfunction in connection with the PC;
electromagnetic waves coming from electronic devices located nearby;
incorrectly installed drivers;
poor internet connection.

REFERENCE. Often a malfunction occurs due to two or more conditions.

How to remove microphone hiss when recording

Depending on the source of the problem, the methods used may be technical or software.If your microphone hisses, first of all you should make sure that there is a stable connection to the PC and in the absence of an overestimated level of the incoming signal.

In the first case, check the connection cable just pull it. Strengthening the cod will tell you that the reason lies in the wire. You should also make sure that the plug fits tightly into the connector.

ON A NOTE. If the connector does not provide a tight connection, it may need to be replaced, as it will be difficult to bend the contacts.

The second option can be tested by lowering the height of the input signal in the settings. There are two ways to rectify the situation using external or internal adjustments.

Using external tools:

if there is a special regulator of the level of the incoming wave on the microphone (or on the amplifier, if used), turn it downward;
or weaken the sensitivity with the appropriate toggle switch.

Through the internal settings:

In the tray, activate the speaker icon using RMB and use the item "Recorders".
In the window, select the desired microphone and right-click in the hidden menu, go to the "Properties" section.
Next, use the "Levels" tab. There are two controls, the Microphone and the Gain. Try to reduce them to different values, the result should be the disappearance of noise.

Additional sources of the problem are the incorrect extension selected for recording or an error in the sound card settings.To change the default file format, go to Speaker - Recorders - Properties - Add-ons. In the list of possible extensions, the first three options are less prone to extraneous sound inclusions.

To change the card settings, use the application (usually it is called Realtek): in the Control Panel, activate the "Microphone" tab, on which enable the "Noise reduction" and "Echo cancellation" items.

The problem with the drivers is easy to solve: we use the installation disk, or, if it is not, go to the manufacturer’s website, then download and install the necessary software. There are no special drivers for the microphone, so just type your PC model and indicate the OS version on the page that opens in the section with additional programs.

The cause of hissing can be more serious problems:

violation of contact inside the device;
malfunctions in the membrane;
problems in the electronic board.

Of these problems, only a bad contact can be corrected by the user. To do this, you will need to disassemble the device case, find the place of the cliff and use soldering to eliminate it.

A damaged membrane will require replacement. Due to its high cost, this measure is relevant for expensive microphones, in other cases it will be cheaper to purchase a new device.

Failures of the electronic board are resolved by the after-sales service, as you need to use diagnostics to pinpoint the location of the breakdown.

A software method for eliminating hissing sound involves processing the file, for example, through the Sound Forge program, it will cope with this problem perfectly. Including can remove traces of electromagnetic waves caused by other devices.

We open the track we need in the application, then in it we find the interval containing poor-quality sound. In the menu, click the Effects option and activate Noise Gate. In the tool window, all parameters can be adjusted to your preference and immediately check the result.

Another program tool is Noise Reduction, located in the Tools section. By selecting the option, you can set the manual or automatic mode for determining low-quality sound.

With manual control, you will see a graph with control points and, if necessary, you can adjust their position. Low points in the process will be suppressed.

There are four modifications to remove noise effects, these are Mode 0, 1, 2 and 3. By default, the second, standard option is set. For best results, try all versions.

IMPORTANT. The main condition for work efficiency: noise should be cyclical.

How to remove microphone background noise

When recording in rooms where there is no necessary sound insulation, the user may encounter the problem of extraneous noise.

ON A NOTE. When solving the problem of how to remove noise when recording from a microphone, you will have to conduct mandatory manipulations with sound in order to achieve a positive effect.

Most of the causes of poor-quality sound are eliminated by software methods. As a rule, noise editors of various degrees of accuracy and complexity are provided in audio editors.

For users who think how not only to remove interference in the microphone, but also to improve the sound of the track without paying money for it, we recommend Audacity. Its advantage is a clear interface and free accessibility of all functionality.

To start the squelch, select Effects, then Remove Noise.
We activate the "Create noise model" button, in which we determine the parameters of the interval containing extraneous sounds, and save using OK.
Select the entire sound track and restart the instrument. Now you can change the values of the presented indicators: suppression strength, sensitivity and smoothing frequency in order to achieve a qualitative result. Save the resulting file.

How to remove extraneous noise in the microphone

If the device and its elements work correctly and all the previous methods did not satisfy the user's requests, then it is worth trying special software products. Plus, they help to remove the noise of the microphone in real time.

This task is able to perform the application Adobe Audition.

ATTENTION. Before using it, you need to adjust the volume level to 50%.

Basic settings:

At the first start, click File - New - Multitrack Session. Then we determine the values: 48 thousand Hz, 16 bits, Stereo mode and save using OK.
We go into the "Edit" mode and in the line "Preferences" select Audio Hardware.
Select the appropriate option from the program’s effects menu: Noise Reduction, this is professional batch processing, or Noise Gate, suitable for simplified editing.

In these tools, all values remain the default.

The program has a powerful noise reduction function, however, its use significantly reduces the overall broadcast quality.

IMPORTANT. The free version of the program provides limited functionality.

How to remove microphone noise on Skype

There are two sources of extraneous sound inclusions in the program:

Slow internet speed. To fix the problem, during the session, you will need to interrupt the download of files and stop watching movies online. If your Internet connection is initially slow, consider changing your plan.
Malfunction of the sound device or other elements. See the previous paragraphs for diagnostic methods and solutions.

ON A NOTE. Skype is not a source of poor microphone performance.

If necessary, the program will help reduce the sensitivity of the device:

Let's go along the path Tools - Settings - Sound Settings.
Select the "Microphone" block.
Enable automatic adjustment or determine the volume to your taste. In the latter case, the recommended slider position is 50%.