It is almost impossible to imagine a computer working without sound. This is especially true for entertainment; video games without sound are not interesting, there is no point in watching movies with subtitles, and listening to music becomes impossible. Sound is necessary, so each user has a speaker or several, or headphones. These devices are necessary, but no one wants to shell out for expensive options; people buy cheap audio systems that eventually break down or start to act up. What can I say, crackling sounds in computer speakers and other extraneous sounds can appear even in expensive devices.
Noise can appear due to the operation of the computer, the operating system is loaded, information is processed, all this is accompanied by unpleasant crackling and squeaking. Fortunately, the problem can be solved, but first you need to find out what is causing the extra sounds.
Throwing away your old device and buying a new one is an extreme method of solving the problem. In fact, noise in headphones or speakers can occur due to damage or incorrect connection of wires, drivers, and even Windows settings.
PROBLEMS WITH CONNECTION CORDS
Often a hissing sound appears when the connection is poor sound card PC and audio playback devices. There are three options:
- The connection wire is damaged. This not only causes interference in the computer speakers, but also a problem when only one of the speakers works. It is not always possible to determine the location of the cord fault by eye, so it is better to connect the device to another computer and check.
- The contact between the audio device wire and the network card is of poor quality.
- The wire is not secured. When a draft wags the cord, or children play with the wires, noise is generated in the speakers. In such a situation, you need to attach the wire to a solid base; tape is suitable for this purpose.
It also happens that the problem appears due to the use of a long cord; the crackling is not strong, but still causes inconvenience. Using a shorter wire will solve the problem.
TROUBLES DUE TO DRIVERS
The operation of the computer, including sound reproduction, depends on the drivers. When they are not installed, the user will not hear anything at all, and if a person has downloaded the wrong driver, then the operation of the device will be disrupted.
Such malfunctions appear after updating the drivers or installing a new package. This problem is reported by Windows OS.
To check whether these sounds in the headphones really appeared due to the drivers, we do the following manipulations:
- We go to the “Control Panel”, there we already click on the “Hardware and Sound” icon and click on the line “Task Manager”;
- If there is no yellow or red warning icon, then there are no problems with the sound drivers. When such signs are present, we correct the problems.
In any case, if updates are available, you should do so. Perhaps the extraneous noise will disappear.
SETTINGS AND CONFIGURATIONS
Two or three randomly placed checkboxes next to unknown options can degrade the sound quality. Hissing in headphones appears when PCBeep and line input are running. Other functions, depending on the computer settings, can also affect the volume and quality.
Fig.1. Go to the “Control Panel” menu, select the “Hardware and Sound” icon and then click on the “Volume Adjustment” function
Fig.2. At the second stage of work, click LMB on the “Speakers and headphones” icon
Fig.3. The Levels menu has settings for PcBeep, CD, etc.
- We set all these functions to the value 0, save the configurations and check whether this solves the problem.
In some situations, such simple manipulations actually improve the quality of reproduction.
OTHER REASONS
DEVICE QUALITY
Extraneous noise appears in the speakers when the volume is increased. When this figure exceeds 50%, noise, crackling and other unpleasant effects appear instead of music.
This problem plagues all owners of inexpensive devices; it is also called the “jitter” effect. Also, noise appears when the volume level of the speakers is set to maximum, and in the operating system, on the contrary, at minimum configurations.
In such a situation, we find a “golden mean”
Solving the problem with “jitter” when the volume is increased is almost impossible. The only solution is to buy new speakers.
WEAK SOUND CARD
In most computers, this part is installed directly into the motherboard and is purchased all together. Purchasing a separate card costs money and is not a popular solution.
Increased frequencies of all kinds of boards create electromagnetic effects that do not interfere with the operation of the digital part of the device, but strongly affect the analog components, which is why the quality of reproduction decreases.
Inexpensive PCI options are a little better in this regard, but they also have this problem.
IMPROPER PLACEMENT OF PARTS
When the board is installed near the video card, the computer speakers begin to make noise. The fact is that the video card produces special signals that come to the sound card and create noise.
If this is not possible, then we create a special reflective screen from cardboard and foil.
NO GROUNDING
Therefore, a computer connected to a regular outlet will produce sound with noise and crackling. In laptops, this problem cannot be solved, because in such a situation the board will not be grounded.
Extraneous sound and noise in headphones and speakers must be eliminated.
Causes of noise in headphones:
You connected your headphones to your computer or laptop, and instead of pleasant and favorite music you hear annoying hissing or crackling, who would like that? At the same time, you don’t understand why there is noise in the headphones, where it came from and what to do about it.
The most annoying thing about the noise effect in headphones is that it is very difficult to figure out what caused it and how to eliminate it. There can be many reasons for crackling noise in headphones; the usual algorithm for finding the cause of poor performance of a headphone is to sequentially search through potential sources of noise, exclude or isolate them, and then check them further. In theory it looks simple, but in practice such an algorithm is impossible to fully implement.
For example, you have only one computer, which is connected to an outlet that is built into a concrete wall, the apartment has been renovated and it is impossible to install the computer in another place, or another room, because... there is no place for him. And therefore, we are unable to exclude all possible causes of extraneous noise in the headphones.
However, we can start with the simplest and most obvious potential causes of interference in headphones, and if checking them does not yield results, then we can only hope that this problem will correct itself in the future. For example, your neighbors will turn off the hammer drill, or after a while you will buy a voltage stabilizer through which you connect your computer.
So, let's start looking for the cause of hissing in headphones.
Cable damage is a very common cause of hissing and crackling in headphones.
Let's start with the simplest and most common cause of extraneous noise in headphones - a damaged cable or poor contact in the socket.
Carefully examine the headphone cable, it must be absolutely intact, and there must be the same density inside along its entire length. Feel the entire cable with your hands, perhaps there was a break somewhere inside the cable, or one day you bent the cable too much and the copper strands inside it broke.
If, after a visual and tactile check, the cable does not raise suspicions, check the jack, its joints and the audio jack itself into which you connect the headphones.
Check how well you insert the jack into the socket, it should go in easily, with a slight click and stay firmly in it. The jack must fit all the way into the socket; no visible part of the jack should remain.
Sometimes, due to the structural features of the nest, about 1 mm of the jack remains visible, but no more, and this is a rare phenomenon.
Poor contact is one of the most common causes of noise and crackling in headphones. Wipe the jack with a dry soft cloth; it may be dirty or covered with a layer of oxide.
If the wire does not cause suspicion and the jack is connected to the socket securely, but the noise remains, you need to continue the search.
The technical condition of the headphones is a possible cause of white noise
After checking the wire and jack did not produce results, you must check the headphones themselves.
Inspect them carefully; they may have recently fallen onto a hard surface, or cracks or other signs of damage may have appeared on the body.
Be sure to try connecting the headphones to another audio source, such as a phone, TV, or tablet.
It is very important to understand and establish that the cause of white noise in headphones is not the headphones themselves, but rather the device to which they are connected.
If, when connected to another device, the white noise disappears, it means that the headphones themselves are fine, along with the wire and jack, and we move on to further search for the origin of the crackling noise.
Inexpensive speakers may cause noise in headphones
If noise in your headphones occurs when connected to a computer or laptop that simultaneously has inexpensive multimedia speakers connected, first try turning off the speakers and checking if the noise in the headphones has disappeared.
The fact is that inexpensive speakers are assembled from cheap elements, but the most important thing is that when assembling them, they save a lot on soldering, wires and the general level of construction. Therefore, poor contacts or short circuits may occur inside the speakers, which will interfere with the entire electrical circuit, resulting in extraneous noise appearing in the headphones.
The speakers need to be turned off completely, and not just turned off.
If completely disconnecting the speakers from the computer does not help eliminate the noise in the headphones, proceed to next step troubleshooting.
Lack of grounding is the most common cause of noise in headphones when connected to a computer.
For some reason unknown to me, many homes do not have electrical outlets grounded. In general, this is not so bad; traditional household appliances such as irons, heaters, filters and air conditioners work normally. But as soon as you connect equipment that is very sensitive to the quality of the power supply to an ungrounded electrical network, problems immediately arise.
A computer connected to an ungrounded outlet is a direct path not only to noise in the headphones, but also possible reason failure of the computer entirely due to exposure to static electricity.
The normal way to solve this problem is to ground the outlet to which the computer is connected. But doing this on your own is not easy, if at all possible. To do this, you need to call an electrician, however, in this case, most likely, you will have to rewire the entire apartment, and this is a serious repair.
There is a simple way to check whether grounding will really help eliminate noise in the headphones - run a wire from the computer to the battery.
You need to take an ordinary copper wire of small cross-section, with bare contacts on both sides. Place one end against the computer case (preferably against the back wall), and the other against the battery. It is useless to lean the wire against the painted part of the battery; you need to lean it against the metal of the battery, so you will have to look for such a place. You can usually find bare metal on the back of the battery.
If you did everything correctly and the noise goes away or decreases significantly, then the problem is grounding.
Remember: grounding through the battery cannot be considered a permanent solution. Such grounding can lead to complete failure of the entire computer; all it takes is for your neighbor to ground serious equipment to the battery, and the computer, having received a powerful discharge of electricity to the case, will fail. This is just a way of checking, nothing more.
But what to do if you know for sure that the sockets are grounded, and checking with the wire did not give anything? We continue to search for crackling noise in the headphones.
Microphone noise is one of the many causes of interference in headphones
We have looked at the possible sources of the noise problem in headphones, which relate to material interference, but now we are left with problems that relate to the setup of computer equipment.
One of the most common causes of noise in headphones is noise from the sound card microphone.
Even if you don't have a microphone connected to your sound card, you may experience noise from the microphone jack.
In order to test this hypothesis, you need to go to the sound volume settings of your sound card, find the slider that adjusts the microphone volume level and reduce it to zero. Or, if possible, turn off the sound from the microphone altogether.
If the noise in the headphones was caused by the microphone input, then turning off the sound from it should completely correct the situation.
To get to the microphone volume settings, open the control panel, find the item "Equipment and Sound" and go into it.
Now find the item "Sound" and go into it.
In the sound settings window, go to the tab "Record", then find the active microphone (in my case it is the Sound Blaster ZxR microphone), select it and click on the button "Properties" in the lower right corner.
In the new window, find the tab "Levels", and either move the microphone volume slider all the way to the left until its value reaches zero, or click on the blue speaker icon, which is located to the right of the volume indicator. A red crossed out sign should appear next to the speaker. This icon will indicate that the microphone is completely muted on the system. It is preferable to turn it off, and not just lower the volume level.
One type of problem with the microphone input or the microphone itself is its high sensitivity. This problem can be solved by turning on the microphone noise reduction mode.
Almost all modern sound cards have this mode. If you find out that the reason for the crackling noise is the microphone, but you need it, then try turning on the noise reduction mode if it is available. This should solve the problem.
A problem with the volume level of sound sources in the sound card may cause hissing in headphones
Not only microphone interference can cause hissing in headphones, but adjacent sound card inputs can also cause the same interference.
Depending on the sound card model, it may have additional inputs for connecting additional equipment. They may have the following names:
- What U Hear
- Line in
- S/PDIF
Any of them, under certain circumstances, can become a source of interference. Just like you turned down the microphone volume, you need to turn down or completely mute the volume from all of these jacks.
To do this, go to the panel Windows management.
Then find the item there "Equipment and Sound".
Then click on the section "Sound".
In the new window, go to the “Playback” tab, select active speakers (the device that plays sound in the headphones in this moment) and click on the “Property” button.
Next, I won’t be able to take a screenshot, because... in my case, the volume level of all inputs and outputs is controlled through special software that controls my Sound Blaster sound card; in your case, most likely, the tab will be available "Levels", by going into which you can disable all inputs and outputs of your sound card.
To test, leave only the headphone output turned on, and turn off all other possible outputs and inputs or reduce their volume to zero.
If the problem of headphone hissing was in one of these points, it should disappear.
Volume level is paradoxical, but true, it can cause interference in headphones
In some cases, the volume level may cause noise in the headphones.
Sometimes it happens that headphones have their own volume control, plus there is an additional volume control in Windows, and there is also a volume control in the application from which you are listening (game, player).
In order for any hardware that has its own hardware volume control to work well, it is necessary to ensure that all software volume controls (especially the main volume slider in Windows) are set to 100%. And the final volume adjustment is made using a hardware volume control.
To eliminate hissing, follow these steps:
- Completely mute the sound in the headphones using a hardware control (buttons or knobs on the headphones themselves)
- Set the volume in Windows to 100%
- Set the volume in the application to 100%
- Start by gradually increasing the volume on your headphones and bring it up to a comfortable level.
The fact is that software volume controls artificially reduce the sound volume, after which you have to turn the volume up to maximum in your headphones in order to listen to it at a comfortable level. However, for any equipment, be it headphones, speakers or a car engine, prolonged operation at the limit of the possible is extremely detrimental to the characteristics and properties of the unit.
When you set the hardware volume on your headphones to maximum, you are amplifying all the noise that comes from the computer, plus adding distortion that appears in the headphones themselves at maximum sound level.
Therefore, you need to adjust the volume using the method I indicated in order to minimize possible distortion and noise from the headphones themselves, as well as remove the artificial amplification of unwanted noise.
Good day.
Most home computers (and laptops) come with speakers or headphones (sometimes both) connected. Quite often, in addition to the main sound, the speakers begin to play all sorts of extraneous sounds: the noise of mouse scrolling (very common problem), various crackling sounds, trembling, and sometimes a slight whistle.
In general, this question is quite multifaceted - there can be dozens of reasons for the appearance of extraneous noise... In this article I want to point out only the most common reasons why extraneous sounds appear in headphones (and speakers).
Reason #1 - problem with the connection cable
One of the most common reasons for the appearance of extraneous noise and sounds is poor contact between the computer's sound card and the sound source (speakers, headphones, etc.). Most often, this happens due to:
- damaged (broken) cable that connects the speakers to the computer (see Fig. 1). By the way, in this case you can also often observe the following problem: there is sound in one speaker (or headphone), but not in the other. It is also worth noting that a broken cable is not always visible to the eye; sometimes you need to install headphones to another device and test it to get to the bottom of the truth;
- poor contact between socket network card PC and headphone plug. By the way, very often it helps to simply remove and insert the plug from the socket or turn it clockwise (counterclockwise) to a certain angle;
- loose cable. When it starts to hang out from a draft, pets, etc., extraneous sounds begin to appear. In this case, the wire can be attached to the table (for example) with regular tape.
By the way, I also observed the following picture: if the cable for connecting the speakers is too long, extraneous noise may appear (usually subtle, but still annoying). When the length of the wire was reduced, the noise disappeared. If your speakers are very close to your PC, it might be worth trying to change the length of the cord (especially if you use some extension cords...).
In any case, before you start looking for problems, make sure that everything is in order with the hardware (speakers, cable, plug, etc.). To check them, just use another PC (laptop, TV, etc.).
Reason #2 - driver problem
Anything can happen due to driver problems! Most often, if the drivers are not installed, you will have no sound at all. But sometimes, when the wrong drivers were installed, it may not be observed at all correct work device (sound card) and therefore various noises appear.
Problems of this nature also often appear after reinstallation or Windows updates. By the way, Windows itself very often reports that there are problems with drivers...
To check if everything is ok with the drivers, you need to open device Manager (Control Panel\Hardware and Sound\Device Manager- see fig. 2).
In Device Manager you need to open the " Audio inputs and outputs"(see Fig. 3). If this tab does not display yellow and red icons next to devices exclamation marks- means that conflicts and serious problems not observed with drivers.
Reason #3 - sound settings
Quite often, one or two ticks in the sound settings can completely change the clarity and quality of the sound. Quite often, noise in the sound can be observed due to the inclusion of PC Beer and the line input (and other things, depending on the configuration of your PC).
To configure the sound, go to Control Panel\Hardware and Sound and open the tab " Volume settings"(as in Fig. 4).
In the “Levels” tab there should be the treasured “PC Beer”, “CD”, “Line input”, etc. (see Fig. 6). Reduce the signal level (volume) of these devices to a minimum, then save the settings and check the sound quality. Sometimes after these settings are entered, the sound changes dramatically!
Rice. 6. Properties (Speakers/Headphones)
Reason #4: Speaker volume and quality
Often, hissing and crackling in speakers and headphones appears when their volume reaches maximum (on some, noise appears when the volume rises above 50%).
This happens especially often with inexpensive models speakers, many people call this effect “jitter”. Please note: this may be the reason - The volume on the speakers is turned up almost to maximum, and in Windows itself is turned down to minimum. In this case, simply adjust the volume.
In general, it is almost impossible to get rid of the “jitter” effect at high volumes (of course, without replacing the speakers with more powerful ones)…
Reason #5: Power supply
Sometimes the reason why noise appears in headphones is power supply diagram(this recommendation is for laptop users)!
The fact is that if the power supply circuit is set to power saving (or balance) mode, perhaps the sound card simply does not have enough power - this is why extraneous noise is observed.
The solution is simple: go to Control Panel\System and Security\Power Options- and select the mode “ High performance"(this mode is usually hidden in the additional tab, see Fig. 7). After this, you also need to connect the laptop to the power supply, and then check the sound.
Reason #6: Grounding
The point here is that the computer case (and often the speakers too) passes electrical signals through itself. For this reason, various extraneous sounds may appear in the speakers.
In order to exclude this problem- one simple trick often helps: connect the computer case and the battery with a regular cable (cord). Fortunately, there is a heating radiator in almost every room where a computer is located. If the reason was grounding, this method in most cases eliminates interference.
Mouse noise when scrolling the page
Among the types of noise, the prevailing extraneous sound is the sound of a mouse when it scrolls. Sometimes it is so annoying that many users have to work without sound at all (until the problem is fixed)…
Such noise can occur for various reasons; it is not always easy to establish. But there are a number of solutions to try:
- replacing the mouse with a new one;
- replacing a USB mouse with a PS/2 mouse (by the way, many PS/2 mice have a mouse connected via an adapter to USB - just remove the adapter and connect directly to the PS/2 connector. Often the problem disappears in this case);
- replacing a wired mouse with a wireless one (and vice versa);
- try connecting the mouse to a different USB port;
- installing an external sound card.
Rice. 8. PS/2 and USB
PS
In addition to all of the above, speakers may begin to produce noise in the following cases:
- before a mobile phone rings (especially if it is close to them);
- if the speakers are too close to the printer, monitor, or other equipment.
That's all I have on this issue. I would be grateful for constructive additions. Good job 🙂
Question from a user
Hello.
I have a problem with my PC: there is some kind of extraneous noise coming from the speakers and headphones (resembles a crackling sound). I poked the wires - it didn’t help; I also rearranged the inputs - the problem did not go away. By the way, if you click the mouse, this noise intensifies a little. What to do?
Built-in sound card, Realtek (I don’t know the exact model). The headphones are new, the speakers are very ordinary, although they are already quite old (7-8 years old).
Good day!
In general, there can be a great variety of noises encountered in speakers and headphones: for example, the noise of a mouse wheel, various crackling sounds, whistling, intermittent and trembling noises, etc. They can appear for a variety of reasons.
The user problem with sound described above is quite typical (unfortunately), and it is not always so easy and quick to fix. However, in this article I will try to give all the most important points that you need to pay attention to first. By eliminating them, with a high degree of probability, you will make your sound better and cleaner.
If you have too much quiet sound - try the tips from the following article:
If you have no sound at all on a computer - I recommend reading this guide:
Causes and elimination of extraneous sound in speakers and headphones
Cable for connecting speakers/headphones
1) Is the cable intact?
Many people don’t attach any importance to this (supposedly what will happen to it), and the cable, by the way, can be damaged accidentally: if you move the furniture carelessly, bend it, or step on your heel. In addition, many people have pets in their home. In general, there are enough reasons without your direct intervention...
The photo below shows a damaged audio cable...
2) Broken audio connectors
Over time, any audio connectors begin to “weaken” (most often from intensive use) - and the plug is not clamped tightly into them, sometimes there is even a slight play (gap). If in this case you try to insert/remove the plug and twist it in the socket, you may notice how noise appears in the speakers and how they disappear. In this way, you can choose a position for the plug that will not produce noise. The cable can be secured with tape in this “ideal” position.
In general, if the problem is with broken sockets, replace them in the computer. service, the question is not too “expensive”.
3) Cable length
I also want to pay attention to the length of the cable. If speakers are located 2 meters from system unit- then using cables 10 meters long is unreasonable (especially if there are some adapters or extension cords). All this can cause “distorted” sound, a kind of interference. In general, I do not recommend using cables longer than 2-5 meters (in the most common situations, for household use).
4) Is the cable fixed?
Another reason that I had to deal with was the following: the cable from the system unit to the speakers was suspended, about 2 meters long. Naturally, if the window in the room was open, then the draft caused this cable to “dangle” and extraneous noise was observed.
Getting rid of the problem was very simple: using ordinary tape, we attached the cable in 2-3 places to the table and the noise disappeared.
By the way, the cable can also be touched by passing people (if your PC is not very convenient), pets, even your own legs (if the cable runs under the table). Therefore, my advice: secure (fix) or lay the cable so that no one accidentally touches it.
The photo below shows special holders/clamps that prevent the cables from getting tangled and prevent any wires from dangling. These Velcro holders can be placed at the back of the table and secure all the wires and cables. By the way, you can use regular tape instead.
5) Front and rear audio jacks
Another important point: if laptops have only one audio connector (usually on the side panel), then the system unit has 2 of them (most often): on the back of the unit, and on the front.
Many users find it more convenient to connect headphones (sometimes speakers) to the front side of the unit - and often in this case the sound is not as high quality as if you connected it to the audio connectors on the back wall of the system unit. This is due to adapters, extension cords, and other issues with connecting the front panel (from the back of the system unit - the audio outputs go “directly” from the sound card).
In general, the motive behind this advice is simple: try connecting headphones/speakers to the audio outputs on the back wall of the system unit.
6) Is the cable intertwined with other cords?
Also, background noise and extraneous noise may appear in the speakers due to the fact that the audio cable is too “tightly” intertwined with other wires. Try to carefully position it so that it is away from the rest. By the way, this advice overlaps with fixing the cable (see just above).
And one more tip: If you experience hissing and noise in your speakers, try connecting headphones instead (or vice versa). This will not solve the problem, but it will help find and diagnose the cause. If there is no noise in the headphones, then the reason probably lies outside the system unit (which is already something...).
Incorrect sound settings in Windows
Often, extraneous noise in the speakers is associated with not entirely “correct” sound settings in Windows. Therefore, I recommend trying to change them...
To do this, open the Windows Control Panel at: Control Panel\Hardware and Sound .
It will display several of your audio devices. Open the properties of the device through which the default sound comes (such a device is marked with a green checkmark).
Note: by the way, if the default device for sound playback is selected incorrectly, then you will not hear sound.
When will you open speaker properties(default playback devices) - look at the "Levels" tab (see screenshot below). In this tab, reduce all extraneous sources to a minimum: PC Beer, CD, Microphone, Line In, etc. (their number and availability depends on your computer configuration).
Next, I recommend opening the tab "improvements" and see if it is enabled "Loudness of Compensation" (by the way, in some versions of Windows it is called " Additional features/volume equalization").
Save the settings and check if the sound has changed or become clearer.
Lack of current sound driver/driver settings
In general, usually, when there are problems with drivers, there is no sound at all. But modern Windows versions(8, 8.1, 10) install drivers automatically. There is nothing wrong with this; on the contrary, they make life easier for novice users. But there is one big “BUT” - the drivers they install usually cannot be configured, i.e. there is no extra panels where important parameters for your equipment are set. As a result, certain sound distortions may occur.
In order not to repeat myself about how to check if there is an audio driver in the system, how to find and update it, how to remove the old driver, etc. - I recommend reading this article:
You may also find programs for automatic update drivers in the system. I talked about them in this article:
I also recommend paying attention to the settings of the driver itself. To open audio driver settings: go to the Windows Control Panel in the section "Equipment and Sound" . Further at the bottom of the window, there is usually always a link to the settings: in my case, this is "Dell Audio" (in yours, for example, this could be Realtek Audio).
In the audio driver settings, check the volume of the main devices (play around with it), disable various “obscure” enhancements, filters, etc. Very often they are the cause of all sorts of sound problems.
Checking speakers on another PC
If the above recommendations do not give any effect, I highly recommend connecting your speakers or headphones to another device: laptop, TV, PC, etc. This must be done in order to determine the source of extraneous sound:
- either it’s the speakers’ fault (if the sound on other devices is noisy);
- or the system unit itself is “to blame” (if the speakers behave normally when connected to other sound sources).
The reason may be grounding...
Grounding (sometimes called grounding) in ordinary residential buildings, most often, they do it in the basement. All sockets in the building are connected to this ground. If all equipment (including speakers) is connected to the same outlet, then problems with interference due to grounding usually never arise.
If the noise is caused by grounding, then the easiest way to get rid of this is to connect all equipment to the network through one common power outlet. Even better if it is connected to an outlet network filter(not Chinese, but standard quality, or UPS), to which the PC and speakers will be connected.
The photo below shows a surge protector for 5 outlets. Enough for most ordinary home PCs, you can connect: a monitor, a system unit, speakers, a printer, and there’s also room for a phone charger...
Important! In the absence of grounding, some authors recommend connecting the system unit case to a regular battery. I categorically do not recommend doing this (if the network is built in a certain way, you may get an electric shock)! In general, the issue with grounding is best resolved with an electrician.
Noise from mouse wheel scrolling
Sometimes the noise from scrolling the mouse wheel gets into the audio interference and is heard in the speakers. Sometimes such noise can be quite strong and it is simply impossible to listen to music while working.
If you hear sound from the mouse in the speakers, then I recommend taking the following series of measures:
Try replacing the mouse with a new one;
If you use a mouse with a PS/2 connector, replace it with a USB one (or vice versa);
You can also use PS/2 to USB adapters. For example, by connecting a mouse with a PS/2 connector to a USB port;
Try using a wireless mouse.
The photo below shows: a mouse with a PS/2 plug, a USB mouse, and adapters from PS/2 to USB.
Mobile phones and gadgets
If your mobile phone is too close to the speakers, then when you call it (or receive an SMS), you may hear a strong crackling sound and interference. You can, of course, try to shield the audio cable, but at home, in my opinion, all this is a waste of money, time and effort.
The best way out is to find a place for your mobile phone that is not on the computer desk, or at least place the phone and speakers in different corners. Thanks to this, crackling and noise will be significantly reduced.
By the way, this can be observed from walkie-talkies, radiotelephones and other similar gadgets and set-top boxes. Anything that has an antenna and radio signals can potentially be the source of the strongest vibrations reflected in your speakers.
In some cases, even an ordinary printer/scanner/copier, "unusual" desk lamp may cause noise in the speakers. Therefore, at least for the duration of the diagnosis, I recommend turning off any extraneous devices located near the speakers one by one and monitoring the condition and purity of the sound.
I think there is nothing more to comment here...
High volume on low-quality speakers
Volume above 50% on inexpensive low-quality speakers (and headphones) may well be the cause of noise (they say that the speakers are starting to make noise).
In general, all speakers and headphones produce noise. True, higher quality speakers (and, as a rule, more expensive ones) produce more clear sound even at high volume, and the noise is only at maximum. While cheap ones - when the volume reaches medium levels...
Also pay attention to the microphone. If your speakers are turned on loudly and the microphone is working, then a closed “ring” effect may be observed.
Low power supply ( economy mode)
This tip is more suitable for laptop users...
The fact is that laptops have several operating modes: economy mode, balanced mode, and high performance. Manufacturers do this in order to use battery power more economically.
In some cases, reduced energy consumption does not allow issuing high quality sound. Therefore, I recommend going to the Windows Control Panel: Control Panel\Hardware and Sound\Power Options . Then turn on high performance and save the settings (see screenshot below).
Installing an external sound card
For some reason, many people think that an external sound card is some kind of large device, expensive, etc. All this is a thing of the past; now there are modern sound cards, the size of which is slightly larger than a USB flash drive (and they look almost the same).
Yes, you cannot connect any specific equipment to such a sound card, but you can connect ordinary classic headphones and speakers, and a microphone to it, which is more than enough for many average users.
In addition, an external sound card can simply help out and help get rid of extraneous noise when other options did not solve the problem. Moreover, the cost of many models is more than affordable (the cheapest options cost no more than a few hundred rubles).
The photo below shows a USB sound card. Such a small “baby” is capable of producing fairly high-quality sound, which will be the envy of some built-in sound cards. And in principle, it will suit most users who are satisfied with the most “ordinary” sound.
That's all I have. Additions on the topic are welcome...
Headphones are very simple devices, and, as a rule, they are reliably protected from various sound distortions. But, like any other acoustic devices, under the influence of various factors they can wheeze, creak, or make noise - the sound can deteriorate in different ways, but the essence is always the same. This can either spoil the impressions of the sound of the headphones or make listening to music with them completely impossible. What should you do if the sound in your headphones is distorted in one way or another?
Why can headphones produce noise?
The hum in speakers, be it headphones or the emitters of any other acoustic device, is usually caused by physical impact on the device. In the case of speakers, hum can be caused, for example, by an amplifier if it is connected incorrectly, or even by neighboring speakers.
Very often, the speakers begin to hum if a call is received on the phone lying next to them. Everyone knows this unpleasant high-pitched squeaking and buzzing - if this is the reason in your case, just move the phone away from the headphones and the background will disappear.
In addition to interference from other electronics, hum can be caused by poor wire shielding. In this case, the background appears when the headphone wire or the connector to which they are connected comes into contact with metal. Most often, this situation manifests itself when connecting headphones to the line output on the front panel. personal computer. This output connects to motherboard using very flimsy wires, which are exposed to the metal body of the system unit, which leads to background noise in the headphones. To get rid of the hum, just move these wires. But this will not completely solve the problem - to prevent the background from appearing again, you need to either cover the case with aluminum foil from the inside, or simply connect the headphones to another connector - for example, on the speakers or on the back wall of the computer.
Another one possible problem, causing background noise in the headphones - a breakdown of the sound card or a malfunction of its drivers. If the board is broken, you will have to replace it or repair it in service center. You can replace the drivers yourself. To do this, you should find out the sound card model in the device manager, which is available in the properties menu of the computer running operating system Windows. After this, you need to go to the sound card manufacturer’s website and download the necessary software.
Background in headphones when connected to a phone
If the headphones are connected not to the computer, but to a mobile phone, the background noise may be caused by a mismatch between the headphone plug and the connector on the smartphone. The fact is that headphones manufactured before 2011 and after 2011 have a different order of contacts on the plug.
TRS (tip, ring, sleeve) plug used in headphones and headsets for mobile phones, has four contacts, two of which are used for audio output, the third for audio input from the microphone and the fourth is ground. In headphones produced after 2011, the order of connecting the contacts has changed - the ground and microphone have swapped places. The connector in phones has changed accordingly. Therefore, when connecting old headphones to modern phone or vice versa, the connection may not occur correctly, which leads to the appearance of hum in the speakers - the device is not grounded as it should.
Causes of other sound distortions
The background is not the most common, although it is the most unpleasant of possible sound distortions produced by dynamic headphone drivers. Much more often the sound simply becomes quieter, then louder, wheezing, creaking. This can manifest itself in any conditions, or only at certain frequencies, at a certain volume, or when connected to a specific sound source. The reasons for this behavior of headphones, accordingly, can be very different.
Before understanding possible breakdowns, it is worth eliminating the most simple options. Thus, the sound may be distorted in a situation in which headphones are usually used due to their indispensability - namely, when listening to the radio from a phone. In this case, headphones play the role of an antenna, so without them the FM receiver simply does not work. If the sound is distorted in exactly this situation, the reason is most likely not in the headphones themselves, but in the radio - either the radio receiver is faulty, or the place where you are has poor reception.
But this is very special case. In general, headphones squeak and wheeze, usually due to mechanical stress on the plug and wires of the device. In order for the headphones to work properly and the sound in them to be clear, the wire must be solid, and its ends must be securely connected to the contacts on the plug and on the speaker. Thus, the design of the headphones is very simple, but often fragile - careless handling of the device and regular mechanical impact on it, especially at the points of contact of the wire with other parts, leads to the cable fraying, losing insulation, which is why sound distortion appears.
All causes of wheezing and squeaking in one way or another come down to cable damage. This can happen in three areas:
- at the junction of the wires with the dynamic emitter;
- in one of the places along the entire length of the cable;
- where the wire connects to the plug.
Due to the loss of insulation, the wires carrying the signal for different channels interfere with each other, which leads to sound distortion. If the wire moves away from the contacts, the sound will first begin to deteriorate and then disappear completely, so the cause of wheezing must be eliminated immediately after detection, so that the headphones do not completely break.
Cable repair
Unlike broken copper wires, which can be detected with a multimeter, loose wire insulation is not so easy to detect. To do this, you will have to carefully examine every millimeter of the cable length, twisting it in all directions until the sound stops being distorted. Once you find a place where the sound is clear again, the damage can be repaired. In this case, there is no need to cut the wire.
In the designated place, use a sharp utility knife to clean off the cable braid. Under it you will find three wires - two of them conduct the signal to the speakers, while the third grounds the device. They all must be separated from each other. To restore damaged insulation, simply wrap each wire with electrical tape and then cover the repair area with heat-shrink tape.
Plug repair
Sound distortion can be caused by two problems with the plug:
- wires moving away from contacts;
- contact separate wires together.
In any case, the easiest way is to replace the plug. To do this, the old part is cut off, the cable is stripped of windings and insulation. After this, the bare wires are soldered to the corresponding contacts at the base of the new plug and reliably isolated from each other.
Speaker repair
This operation is not so simple and is only possible if the headphone housing is easily disassembled - if disassembly plastic case There are no speakers provided, repairs simply do not make sense - even if the sound is improved, it will still be impossible to use headphones.
If there are screws on the headphone body that hold individual parts together, and you can disassemble it, do so. The copper wires of the cable must be attached to the emitter - if one of them is not held securely, solder it. Contacts must be insulated.
Thus, it is possible to correct sound distortion, but it is not always easy. Before attempting to repair your headphones, make sure that the problem is with them and not with other equipment.
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