Long live the wires! My sad experience using Bluetooth headphones. Extraneous sound and noise in headphones and speakers: where does it come from and how to eliminate it Lack of grounding is the most common cause of interference in headphones when connected to a computer

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: mouse scrolling noise (a 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 the PC network card socket and the 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, the device (sound card) may not work correctly and therefore various noises appear.

Problems of this nature also often appear after reinstalling or updating Windows. 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 yellow and red exclamation marks are not displayed in this tab next to the devices, it means that there are no conflicts or serious problems with the 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 speaker models; 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.

To eliminate 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

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 🙂

Currently, there are many types of different Bluetooth headphones, headsets and speakers to choose from that receive sound using this protocol. Very often, when buying inexpensive headphones, there are problems with sound quality, namely sound stuttering and lag. There are several ways to solve this problem...

The main problem with stuttering Bluetooth headphones is the quality of their manufacture and the incompatibility of standards. The problem may be a low-sensitivity antenna and the power of the processor built into the device. And accordingly, there may be a lack of power on the transmitting device: a computer, tablet, phone and bluetooth module inserted into the USB port of the PC, as well as incompatibility of the BlueTooth version.

It was also noticed that the headphones work well indoors, but outdoors the connection is constantly interrupted. In a room where there are walls close, the signal is reflected from the walls and hits the wireless headset receiver and everything works fine. Where there are no walls, sound is lost.

It has been noticed that the same headphones work fine on one smartphone, but stutter on another. And it happens that everything was fine, but after installing a new program or updating an application, sound desynchronization appears. This is also observed when the screen of a mobile device is turned off or when the phone goes into locked mode.

Especially often, sound cuts occur when installing, deleting, or copying files from a flash drive to a flash drive. Since at this moment system resources are used. All this degrades the sound quality in the headphones. If this happens, then you need to keep in mind that the processor power is not enough to compress the sound and transmit it via the Bluetooth protocol.

Clear, loud sound without wires.

The main advice is, before you buy a Bluetooth headset, check its playback quality, as they say, “without leaving the checkout,” right in the store. If this is not possible, keep the receipt and packaging of the goods to return it back to the point of sale.

What to do if the product cannot be returned to the store?

How to solve the problem of sound stuttering in bluetooth headphones?

1.If you have a PC and the USB bluetooth module is inserted into the rear port of the computer. Then move the USB-Bluetooth to the front of the PC. Better yet, buy a USB hub on a wire, raise it higher and plug a USB-BlueTooth module into it. If the Bluetooth adapter is old, then it is better to change it to a newer and more modern one.

Update Bluetooth driver in Windows Task Manager.

2.If you have a PC, change the drivers in the Device Manager to “Sound and Game Devices” and in the “BlueTooth” subsection. Here you need to run a search for drivers using Windows. To do this, select "Update".

If this does not help, then you need to try installing different versions of drivers and check if one can work.

When syncing with a PC, older models of Bluetooth headphones may have compatibility issues with Windows drivers.

3. While outside, to avoid interruptions in music playback, place your smartphone as close to the headphones as possible. Move your smartphone from pocket to pocket, and the higher it is to the headphones, the better. Or put it in the top, inner pocket of your jacket. Do not use headphones in cold weather.

4.In the player settings or in the audio device settings on the PC, lower the playback quality of the audio stream, i.e. If you listen to music at 320kbps or more, try audio of no more than 128kbps. Audio mp3 files must be recorded at a low bitrate.

If you have a laptop with weak speakers and when playing another movie, the volume of the built-in speakers is not enough for comfortable viewing, then you can use tips for increasing the volume on your laptop or phone.

5. Set the BT mode on the transmitting device to “Visible to everyone”. In this mode, the system loads the processor less.

6.Bring the devices closer to each other for a few seconds or pause the sound playback in the player or in YouTube, this is necessary to synchronize the devices. It may take a few seconds for the audio to fully sync.

7.In Android 6.0 in the settings there is an item: “Application permissions”, in it “Transfer via bluetooth”. Here you need to uncheck all the boxes except “Volume”. Here we click: “Change Settings” and select “Do not disable”.

8.The Android OS kernel can be overclocked through special programs such as: SetCpu, Tasker, Antutu CPU, Tegrak, OverClock and others. Changing OS operating parameters is done in the "Performance" section. The following values need to be changed: Governor in “performance”, Scheduler in “cfq”. Another recommended solution is to install Kernel Adiutor with CPU Governor in the ondemand position (+ “Apply on boot” for convenience).

9.You can reduce the load on the system using special software. There is a program called Droidwall that can control Internet access for each Android OS application. To reduce the load on the processor, prohibit applications that are not needed at the moment from accessing the Internet. This can be done through the program menu.

10. Re-soldering the antenna in the housing of headphones or bluetooth speakers. If you remove the housing cover, there should be a snake-shaped track on the board. Craftsmen solder a 4-5 centimeter piece of copper wire to this track. After this, the signal quality improves and the sound stops stuttering.

Video: My Ideal Wireless Bluetooth Headphones.

Video: 5 Bluetooth headphones. Parcel from China.

11.You can also reduce the processor load on your PC by turning off the microphone on your Bluetooth headset. To do this, go to Control Panel => Sound => Recording => Microphone => Properties => Listen => uncheck “Listen to this device”. And restart your computer.

12.Interference from other devices greatly affects the quality of the connection. If a wireless speaker or sub is located next to a router, TV, computer, microwave and other sources of radio interference, then it should be moved away.

13.A poorly charged battery is the reason for the lack of processor power in the Bluetooth device.

14.Outdated models of Bluetooth headsets may not be compatible with new smartphones and vice versa. This is the main reason for instability and music stuttering. Therefore, before purchasing a wireless device, you should always check whether these two mobile devices will connect well.

You can read more about the BlueTooth protocol in the article on habrahabr.ru. There the process of signal loss is analyzed with screenshots and graphs.

Analysis of the impact of the human body on the power of audio data transmission via the BlueTooth protocol.

The picture above shows that the dump shows that the bitpool value for this portion of traffic is 48, but as soon as I blocked the path from the laptop to the speaker with my body, the bitpool value began to decrease, accompanied by interruptions and clicks.

After the bitpool value settled down to 30, the clicks disappeared and audio playback became continuous again. Everything indicated that the codec performed auto-tuning, noticing degradation in signal quality.

But did I really introduce such a significant attenuation with my mortal body? Well, it's time to take a look at the graph indicating the power level of the received signal.

The world has stepped into the wireless era. Keyboards and mice, data transfer, Internet access - everything has gone away from cables quite a long time ago. However, there are still certain things that literally keep us stuck in this terrible world of wires. And besides the most obvious - for example, chargers, there are also less noticeable, but no less important accessories - headphones. After all, you must admit, not everyone likes to think every time about where and how to “stick” the wire just to go outside. And when playing sports, it’s better not to think about headphones at all. Well, have you ever been annoyed that you have to take them off to get up from your computer? Therefore, for many, the issue of buying wireless headphones is quite acute. It would seem that everything is there for this - at the moment this market is already saturated enough to find a suitable option. But, unfortunately, there are a certain number of problems. After all, in fact, bluetooth headphones have not made significant leaps in quality since the very moment of their appearance.

But on a certain day such a question came to me. Being confident that by this year technology had already matured, I quickly chose my gadget - Jabra Halo 2. [Lyrical digression]: yes, we can say that Jabra Halo 2 is not an indicator and a bad example. However, not every average buyer can afford advanced technology like or - although it is possible that they will also be deprived of all the disadvantages listed below. Moreover, even the Jabra Halo 2 cannot be called budget - let me remind you that for the same one thousand hryvnia you can buy quite serious wired headphones [end of lyrical digression]. And almost a year after the start of operation, I’m ready to talk about all aspects of life with mid-class bluetooth headphones.

The first disadvantage surfaced almost immediately - as soon as the phone ends up in your jeans pocket, the signal begins to be lost. I had to put the phone in the pocket of my jacket, jacket, or bag (however, it turned out that the connection was much better in the right jeans pocket, but this did not completely solve the problem). And in general, sound interruption is the most common problem. Interference can catch you literally at any time, and it is so nasty that you begin to involuntarily turn the phone in your pocket in search of the “optimal position.” Moreover, it happens that the signal is affected by the environment - near the local stadium, for example, interference is almost always observed. Also, the gap will haunt you in the first minute or two after connecting to the device.

The second problem is the sound quality. Yes, in fact, bluetooth headphones sound great - but with a wire connected. With a wireless connection, they are only suitable for listening to podcasts, radio, watching videos from YouTube and chatting with friends. Music connoisseurs will turn up their noses in disbelief (and rightly so), although not particularly picky users (like me) will be satisfied with this.

And it is logical that the speed of work is a little lame. From the sound itself to its playback in the headphones, some time passes within a second. Moreover, from the very first day, the user will notice that before starting to play the sound, the headphones will turn on a barely noticeable noise (against the background of the music it is completely lost), and when the playback ends, this noise will disappear, with a fairly sharp click, which is at a high level the volume can be quite hard on the ears. However, you can get used to it quite quickly.

And at least these three minuses already predetermine the fate of wireless headphones. They have no practical meaning. It can be seen that this direction is gradually developing, but at the moment it is a waste of money. It feels like the market exists so that it exists at all - but there will still be a user. Believe me, freedom from wires is not worth all the problems described above. Although there are positive aspects of using such headphones, my advice to you is: either buy expensive bluetooth headphones, or buy good wired ones.

Despite the ease of operation, sometimes we still encounter certain problems, such as extraneous sounds similar to hissing and wheezing, due to which the overall sound quality deteriorates significantly. To eliminate this problem, you need to know the possible causes of its occurrence.

It is important to know that, despite all the elementary nature of this device, to a person who has not previously had to deal with problems in its operation and eliminate them, this problem may seem very serious.

In order to understand where the hiss in headphones comes from, you need to understand at least a little about how they work. Pay attention to whether you hear hissing sounds constantly or only periodically.

One of the reasons why this problem may occur is the incorrect connection of the headphones, or rather, the selection of the wrong settings. In addition, if the headphones are not new, check whether the contacts with which you connect them are working properly.

Recommendations: How to warm up your headphones correctly and whether you need to do it
How to fix headphones yourself if one stops working
, DIY headphone repair

Noise in headphones caused by faulty sound card

A detail such as a sound card has a direct impact on how well the melody is reproduced by the equipment. If a part is faulty, the personal computer cannot accurately transmit sound signals, which is why the normal sound is supplemented by hissing, crackling, and the sound seems to “break” and “jump.” In this situation, only replacing the faulty part will help, and then the sound will no longer be accompanied by extraneous noise.

Faulty wires

The manufacturer of the model is often responsible for the correct operation of the headphones and the correct transmission of sounds.

You should know that there are two types of headphones: wireless and wired. Extraneous sounds, as a rule, appear in models that operate via a cable connected with a plug. If the copper core of the cable is damaged or stretched, noise interference and intermittent interruptions in sound appear.

A damaged wire often leads to noise in the headphones on an iPhone. This is due to the fact that the cable material is thin and flexible, it breaks easily. A damaged conductor sends incorrect signal characteristics to the sound card, and this affects the sound. How to eliminate wheezing in headphones? This can be done by removing the torn or exposed section of the wire; in extreme cases, you will have to buy new fittings.

Broken USB input

Incorrect sound may occur after connecting other gadgets to the USB connector. The problem could be caused by a mouse or a faulty keyboard. In this case, when you press a key, you will hear clicks. There are quite objective reasons why this happens.

When information is transferred, the load on the PC increases. To reduce it, you need to do the following:

1. Switch the plug to another port.

2. You can also purchase a splitter and repair the old connection sockets.

3. Start using wireless devices.

The problem is that very often users do not pay due attention to their computer and do not immediately repair problems that appear. As a result, the USB connectors one after another become unusable, and only one remains, into which a splitter is connected, and it is on it that the entire load falls, which causes its increase.

How to properly wear in-ear headphones

Mouse noise

When you scroll the page with your mouse, sometimes you may also notice noises, sometimes they are simply unbearable. The solution to the problem is to replace the mouse, switch the mouse to a nearby USB port, or install an external sound card.

Lack of grounding of sockets

This problem is not common, but still occurs, interfering with the normal operation of the headphones. Lack of grounding can also cause crackling, clicking and other noise in the headphones. If you have already checked your headphones and found no problems, also check the outlets to which your computer is connected.

This nuance applies only to desktop computers; laptop boards are usually grounded at the production stage.

When you use headphones connected to a laptop, incorrect sounds are most likely caused by internal malfunctions of the device. Do not delay contacting the service center, where your device will be diagnosed for problems.

The sound source itself does not work correctly

Violating the rules for using headphones often leads to disruption of their operation, and in particular to the sound. Problems also arise in the operation of the main sound source. Rarely, driver errors still occur. Program errors and malfunctions in the operating system cause interference in the form of noise and crackling.

The problem can be detected by testing the device by connecting various headsets. If their work is equally unacceptable - unpleasant sounds will be heard in all headphones, then the problem is hidden in the device driver.

If you are used to listening to music at very high volumes, you may also notice the appearance of hissing and crackling. As a rule, this happens if you purchase inexpensive headphones.

Insufficiently powerful power supply is another reason for extraneous noise in the sound of headphones (this problem sometimes occurs among laptop owners who have not yet figured out all its features). Fixing this problem is simple by using the following tips.

On your laptop, go to Control Panel, then System and Security, and finally Power Options, and select High Performance mode. Once setup is complete, check the sound quality in your headphones.