Why is the microphone on my computer making noise? What to do if the microphone starts to hum? Removing software amplification of digital audio signal

Fonit microphone - what to do?

Created: 05/31/2013
Updated: 10/31/2014

The characteristics and brand do not matter, the main thing is that the sound is clearly audible and clearly transmitted. This is where the fun begins - interference and background appear.

To install associated devices again, you can save existing device drivers before the system is turned on. But rare devices are often not recognized correctly, the required driver is assigned incorrectly or not assigned at all.

Result: The device is no longer used. To make a backup, select "Backup" and then "Scan current system." Backup drivers not only in the user directory, but also in portable media. Default backup copy runs in a structured folder in the user's directory. If you are not sure which drivers should be copied, simply select all drivers. Devices that can no longer be used after a system update are listed as faulty or not recognized in Device Manager.

Let's figure out what this microphone background is? Why is the microphone humming? And what to do in this case? And so, if it is phoning, this is interference on the signal transmission line, that is, on the cable connecting the microphone itself and the amplifier (computer, karaoke). To eliminate the background, you need to check the cable connection and its braiding. The cable consists of two parts: a signal wire and a shielding wire, the so-called negative (it is connected to the microphone body.) This is what leads to the background problem.

Devices that are not configured correctly are highlighted in Device Manager with marked symbols. Error-bound devices are not tied to any specific device class. They are grouped in the Other devices section. If a device is assigned a device class but still has a highlighted symbol, this indicates that the driver was incorrectly assigned, loaded incorrectly, or crashed. To introduce such a device, install the device driver. For devices that have been correctly assigned to device classes, a system reboot or reactivation is sufficient.

For more advanced people who keep up with the times, there is the following technique - this laptop. Modern manufacturers have expanded their range so much that your eyes are wide open and your head is spinning. But there is a very good advantage of such progress - the presence in every laptop web cameras.

This camera is indispensable when communicating on Skype. But even here there may be a background problem.

Headphones with microphone for computer equipment have two independent connectors: one for the microphone and one for the speakers. Make sure your headphones have a microphone. You can also buy a phone if you have two connectors to connect to your computer.

Connect headphones with microphone, speakers or microphone

The pins are the same as regular headphone jacks. You will have two pins that have corresponding ports on the computer. These contacts may have different styles. Some are color coded, one pink or black with a pink line and one green or black with a green line. Others have symbols: one of the jacks has a microphone symbol, and the other has a headphone symbol.

What to do in this case? There are two options to fix the problem.

First- remove sensitivity in the settings of Skype itself.

Many of us use a microphone regularly. We communicate using it on Skype, exchange remarks in online games, we sing in karaoke programs. High-quality microphone performance is very important, but what to do in a situation when the microphone does not work as we would like, we regularly hear noise and other extraneous sounds? In this material I will tell you what to do when the microphone on the computer is not working, what are the causes of this dysfunction, and how to fix it.

To connect a microphone, insert the pink connector into the computer port with the corresponding color or symbol. To connect speakers, insert the green connector into the computer port with the corresponding color or symbol. To connect headphones with a microphone, insert both connectors into the corresponding ports on the computer.

If you have a 3.5mm headset, never pull on the headphone cable when you remove it from the remote. To remove a headset from the remote remote control, pull out the headset jack housing. If you're using headphones connected to the 3.5mm port, go to Settings, select Devices & Accessories, then select the knob and adjust the audio settings. Try using a different controller or a different headset to see if the hardware is working properly. Update your remote control to ensure you have the latest software. Make sure your headphones are not muted. . If these solutions do not resolve the issue, try the following solutions.

Typically a microphone that is phoning manifests itself in the form of an unpleasant buzzing sound in the background that can ruin your general impression from the process of communicating using a microphone. Some recommendations were described by me in the article ““.

Typically, the following reasons lead to the appearance of a “humming” background:

Fonit microphone

To get rid of noise when the microphone is working, I recommend doing the following:

If you hear an echo or noise while playing

They are not intended for use with any other device. In the Online Privacy & Safety section, you can enable chat messaging based on your child's profile. The adult account responsible for the child account you're having trouble with. If you hear an echo, it is usually from the person speaking, not from the person hearing the echo.

What to do if the microphone is buzzing

For example, if you only hear an echo when someone else is talking, the problem may be related to the speaker's headset connection. The following conditions may cause echo or noise during playback.

The microphone detects ambient noise.
This includes voice transmission from the headset.
The headphone jack is not inserted correctly into the remote control.

If you or other players hear echoes or other noises while playing, try one of the following solutions.

Set the correct microphone settings on your PC. Click on the "Start" button, enter in the search bar mmsys.cpl and press enter. Go to the “Recording” tab, click on the microphone you are using, and then click on the “Properties” button.
In the window that opens, go to the “Levels” tab, set the “Microphone” option slider to the maximum right value (100), and the “Microphone Gain” slider to the extreme left (0).

Unplug and plug the headphones back into the control port.
Never pull the cable out of the headphones when you remove it from the remote.

If you can hear others in your group or game but they can't hear you, try these solutions. To test your headphones, run a group to test the sound.

If the problem persists, try reinstalling software your device using the following two options. Finally, if the device still has problems with the microphone when receiving calls, you need to reset the data as follows.

Go to the “Improvements” tab. Here we check the “Noise Suppression” and “Echo Suppression” options.
Go to the “Advanced” tab. If you have 96000 Hz or 192000 Hz there, then change the value of this parameter to “48000 Hz (DVD disc)”. Click on “Ok”;
Check that there are no electrical appliances near the microphone(system unit, mobile phone and so on). If possible, increase the distance between them and the microphone;
Try muting and then unmuting your microphone. Re-open the sound settings window as described above, go to the “Recording” tab, hover the mouse cursor over your microphone, and press the right mouse button. In the menu that appears, click "Disconnect". Then right-click again and select “Enable”;
If the microphone is loud, turn down the volume on the speakers. « Feedback"between the microphone and the speakers causes an increase in the noise level, so it is necessary to reduce the volume of the sound from the speakers to correct the situation. A good option may also be to use headphones to listen to the sound, which will reduce the influence of the speakers to a minimum;
Update the driver for your
Check the functionality of your device's microphones
Follow these steps to get help with your device's microphones. When you play back recorded audio files, the sound you hear is clear, or you hear nothing. To find out if the problem is with your device's microphone and not with the cellular connection or the app you're using, check all microphones. The placement of the microphones varies by device. You can consult the product to find the microphones.

Whatever the recording system, analogue or digital, there will always be some noise (background) - this is a basic physical law. The good news is that the minimum permissible level The noise is actually very low. The trick is to get as close to this theoretical limit as possible, and this means that the movement of your fragile signals at each stage is a dangerous journey from microphone to listener. If your microphone is humming, pay attention to the following:

1. How to choose the shortest signal path? All electrical circuits, no matter how well designed they are, add a bit of noise to the signal, so the shorter the circuit between source and destination, the better. Using a separate mic preamp or voice channel directly into the recorder input can make huge step forward through the entrance through the large mixing console. If you have the option to use a console, consider adopting a direct mic channel output, or insert sends and routings that go directly to the recording. External microphone preamps are especially useful with inexpensive computer sound cards. Since the “native” preamplifiers in cheap sound cards are of low quality and noisy. What to do if the microphone is still humming?

2. Installing the right microphone amplifier is perhaps the most important step in optimizing the gain structure, because the background present here cannot be removed later. If you are using a mixer, press the PFL channel button and then adjust the microphone sensitivity. External microphone preamps or voice channels must have their own accounting systems.

3. Use the right microphone for the job. A general-purpose dynamic microphone is great for close-in vocals, drums, or other instruments, but is unlikely to be sensitive enough to handle quiet acoustic instruments and more distant sounds. A good preamp will help, but ultimately, quiet or distant sounds should be captured using a sensitive condenser or electret microphone. In general, microphones that operate only with phantom power are more sensitive than microphones that can be powered by batteries. For very demanding applications, you need to combine a sensitive microphone with a very low noise mic preamp.

4. The noise usually includes hissing. So if your system is constantly humming, there's a good chance it could be caused by a bad ground. Use balanced connections where possible, and if you get problems with hum when connecting, try making a special cable.

5. Power cables and transformers can be another source of hum, so try to keep network cables separate from signal cables. Where they must intersect, try to make sure they intersect at right angles as this minimizes interference. I don't mean network cables lying next to signal cables. This is especially true for microphone level signals or unbalanced lines. In some cases, poorly designed external source power supply may even interfere back to the mains, although this should be less likely.

In fact, everything is much simpler than it might seem. In order to achieve the smallest background, you only need to consider a few details.

Many of us use a microphone regularly. We communicate using it on Skype, exchange remarks in online games, and sing in karaoke programs. High-quality microphone performance is very important, but what to do in a situation where the microphone does not work as we would like, we regularly hear noise and other extraneous sounds? In this material I will tell you what to do when the microphone on the computer is not working, what are the causes of this dysfunction, and how to fix it.

Typically, a bad microphone manifests itself in the form of an unpleasant buzzing sound in the background, which can spoil the overall impression of the communication process using a microphone. Some recommendations were described by me in the article ““.

Typically, the following reasons lead to the appearance of a “humming” background:

Fonit microphone

To get rid of noise when the microphone is working, I recommend doing the following:

Set the correct microphone settings on your PC. Click on the Start button, type mmsys.cpl in the search bar and press enter. Go to the “Recording” tab, click on the microphone you are using, and then click on the “Properties” button.
In the window that opens, go to the “Levels” tab, set the “Microphone” option slider to the maximum right value (100), and the “Microphone Gain” slider to the extreme left (0).

Go to the “Improvements” tab. Here we check the “Noise Suppression” and “Echo Suppression” options.
Go to the “Advanced” tab. If you have 96000 Hz or 192000 Hz there, then change the value of this parameter to “48000 Hz ( DVD disc)". Click on “Ok”;
Check that there are no electrical appliances near the microphone (system unit, mobile phone and so on). If possible, increase the distance between them and the microphone;
Try muting and then unmuting your microphone. Re-open the sound settings window as described above, go to the “Recording” tab, hover the mouse cursor over your microphone, and press the right mouse button. In the menu that appears, click "Disconnect". Then right-click again and select “Enable”;
If the microphone is loud, turn down the volume on the speakers.“Feedback” between the microphone and the speakers causes an increase in the noise level, so it is necessary to reduce the volume of the sound from the speakers to correct the situation. A good option may also be to use headphones to listen to the sound, which will reduce the influence of the speakers to a minimum;
Update the driver for your sound card. It is quite possible that poor quality results in dysfunction. sound driver. You can use the update tools special programs to update drivers (DriverPack Solution, Driver Genius and other analogues);

Just a couple of decades ago, a microphone connected to a computer seemed incredible. Recording “real digital” sound, immortalizing your “one-two-three... check” on a CD - it was cool and stylish. True, it is not accessible to everyone.

If only because there were few computer microphones on the market, and the banal reworking of an old Soviet one new type the connector did not always bring the desired results. Such craftsmen not only raised the question among their friends about why the microphone was noisy, but sometimes even turned to real sound recording gurus. Which, by the way, often led to a solution to the problem - the microphone was thrown away...

Nowadays the situation is completely opposite. It is difficult to imagine a modern computer without a device that converts air vibrations into electrical signals. Voice chat in many games, Skype, a budget solution for karaoke and even, perhaps, recording a song by a future talented singer - the list of areas where it is needed is huge. But, as they say, the problem is still there - the microphone is humming as often as before, demanding a solution to this problem. Fortunately, there is now more information and it is publicly available.

What does “microphony” mean? As a rule, these words hide a phenomenon in which the recorded (transmitted) sound contains unwanted spectrum components. That is, there is a discrepancy between the recorded and reproduced sounds. Let us recall that the ideal recording option involves accurate conversion of air vibrations into a signal. It can even be compared to photography, but not the image, but the sound.

If the microphone is phoning, it is not necessarily the reason, so simply replacing it with a new one may not bring the desired result. It is important to determine exactly what is causing the distortion. And there are several such “suspects”.

Perhaps the easiest way to narrow your search is to listen carefully to the recording. As a rule, the cause of background noise is a low-quality cable in which the manufacturer decided to skimp on the braid. This is a kind of “shirt” under the outer insulation around the cable, thanks to which interference (read the topic “Electrical Induction”) generates currents not in the cores, but in this layer, from where they flow onto the body and are grounded. Thus, if the microphone is noisy, you should check the cable. However, this, of course, will not give a 100% guarantee of solving the problem, especially if there is a working electrical appliance nearby. Conclusion: we place the cable so that it runs away from the devices and does not lie in a coil on the system unit.

Sometimes a high-quality microphone doesn't work well enough.

It's hard to believe, but this happens. The whole point is that the devices themselves must be consistent. If this is not observed, only replacement will help.

Of course, do not forget that the probable cause may be poor contact in the connector/plug, microphone, or broken cable cores.

You can try adjusting the microphone. To do this, right-click on the speaker icon (lower right corner of the desktop), select “Recording devices”, find the microphone settings. Here you need to reduce the sensitivity (slider down) and uncheck the gain box. Also (theoretically) replacing the driver could help sound card to newer/older version.

The active spread of sound recording equipment has led to the emergence of a number of problems, one of them is fonit microphone. The situation is not uncommon and the background appears even on good, expensive devices. First of all, you need to understand the causes of the problem, as this will help determine the nature of further actions.

If the microphone is playing in headphones, a stand-alone model or in a webcam, then you need to listen to the nature of the background. It can be low frequency and high frequency. Each type indicates the nature of the problem.

Low-frequency hum often appears with passive microphones that were connected using an unshielded cable. The cord design does not include preamplifier- this is the reason for the tension that appears and the characteristic sound reminiscent of work household appliances when connected to the network. In this case, the frequency is 50 Hz - this is the network frequency. To fix the problem, you need to use a cable with a special sheath.

Often the problem lies not in the microphone design, but in the intermediate link that transmits the signal. From time to time, even a cable with a screen can create a background. When touching parts of the microphone or electrical circuit, noise may occur. This is typical in the case of a galvanic connection connecting the signal core in the cable and the housing elements. The transmission of hum from the amplifier occurs due to the generation of noise from our body.

The banal reason is that the background appears when interacting or being close to the phone. The sounds appear briefly.

Often the problem lies not in the equipment, but in the incorrect configuration of programs and systems. A number of situations can be corrected without touching the microphone. On this problem accounts for the majority of all cases.

Fonit microphone: what to do?

To eliminate the problem, you need to perform a series of small procedures, during which you will be able to determine the true cause and solve it.

Automatic diagnostics

Windows 10 has special functionality that the “seven” does not have – diagnostics of sound settings. Due to a number of problems in the sound settings, the developers developed automatic check malfunctions. It’s worth starting the elimination with the most effective and simple tool.

To eliminate the background in this case, you should do:

In the notification panel (lower right corner), right-click to open the speaker icon.
In the pop-up window, select “Detect audio problems.”
An analysis will run, during which a number of settings will be checked and a number of potential faults will be corrected on its own.

Adjusting levels

On the computer under Windows control There is a special feature - a level amplifier. The use of the functionality is justified when the microphone is weak to increase its volume. The cost of amplification is high-frequency noise from the background.

To change levels, the user needs to go to the “Sound” tab; there are several methods for performing the procedure:

Press Win + R on your keyboard and enter mmsys.cpl;
Right-click on the icon in the notification panel and select “Playback devices”;
Click on Start, then “Control Panel”, where you can find the “Sound” tab.

After finding the required tab, you need to adjust the levels:

From the menu found in the previous paragraph, you need to go to the “Record” tab.

There is a list of available microphones; you need to select the one that is used, usually there is a checkmark next to it on a green background. You need to double click on the appropriate microphone.
Go to the “Levels” tab;
There are 2 sliders at the bottom: the top one is responsible for the volume of the microphone without an amplifier, and at the bottom you can add gain. The background is most affected by the second slider; you need to disable the function. The first slider should be set to maximum.

Drivers

Any equipment in a computer needs drivers; if there is a malfunction in this area, various problems with sound. It is worth checking the drivers for sound; most often Realtek is installed. It is advisable to completely remove them and reinstall them again.

In the main driver window, you can open it in the notification panel by expanding the list by clicking on the arrow, you can find useful functionality - noise and echo suppression. It is worth activating the functions and checking that there is no gain of more than 10 dB.

There are a number of small pitfalls that an inexperienced user stumbles upon when working with a microphone:

the appearance of the background may be caused by the program, perhaps there is an amplifier or incorrect setting. Therefore, when using Skype, TS and other means of communication, it is worth checking the operation of the microphone separately from them. For example, in Skype the default is automatic setting, it should be removed.

It is worth inspecting the cable; often low-quality wires are simply bent, crushed, or part of the covering is cut off. You can visually inspect the cable, or better yet, replace it with another one and check it.

the likely cause lies in the sockets, perhaps they are loose, clogged or damaged. Also, you cannot use the front connectors, the signal quality in them will be worse. It is worth switching the plug to another socket and the problem may disappear.
use special programs to suppress noise and background. Applications can improve sound quality, but sometimes at the expense of volume. Among the well-known and widespread programs are: Hard Limiter, Adaptive Noise Reduction.

The background when the microphone is working after the above manipulations should disappear. Otherwise, we can talk about a malfunction of the microphone itself and you will have to repair it or buy a new one.

If you still have questions on the topic “What to do if the microphone starts to hum?”, You can ask them in the comments

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