How to make the sound work. How to make sound appear on the computer. Why doesn't the sound on my computer work? Restoring sound on a computer. Sound is lost due to computer settings
Many laptop users may be faced with a situation where the sound volume of their laptops is not enough to ensure comfortable listening to various audio. This drawback is especially pronounced when watching a movie, the volume of the soundtrack of which does not allow you to fully enjoy the quality of the motion picture. In this article I will tell you how to make the sound louder on a laptop, what tools exist for this, and how to use them.
Reasons for low sound volume on a laptop
To understand how to amplify the sound on a laptop, you need to determine the causes of the low sound problem. They are as follows:
- Incorrect custom sound settings on laptop (optionally set to low sound, and the user does not know how to amplify it);
- Low baseline recorded audio... There are films, as well as individual audio clips, in which the sound is recorded at low power. Whether this is due to pirated copying, software glitches, or, on the contrary, protection from pirates, it is not important, the main thing is that there is no direct "fault" of your laptop in this;
- Problem with motherboard pins and laptop audio jack... The reason may be physical wear of connectors, outdated sound card and other "physical" reasons;
- Incorrect sound card drivers or sound card driver conflict with drivers of other devices;
- Misleading the user... A person believes that the sound of a laptop on headphones or speakers is low, but in reality it is not the laptop that is to blame, but various problems in the functionality of the headphones and speakers themselves.
How to make the sound louder on a laptop - solutions
After identifying the reasons for the low sound, I'll tell you how to make the sound louder on your laptop.
- Verify (audibly) that both speakers of your laptop are working, and one of them is not out of order;
- Update the drivers for your sound card... To make the sound on a laptop more powerful, you need to go to the Device Manager, see the name of your sound card and look for the latest driver for it on the manufacturer's website. You can also take an easier path and download a special program for yourself (Driver Pack Solution, Driver Booster, Driver Checker and others), which will analyze the driver versions on your PC and offer to install the most recent ones;
- If your laptop has served you for a long time, and you regularly use its audio jack to connect headphones and speakers, then the connector can simply fail... Try to connect other headphones and speakers to it, if the situation is also disappointing, then it may be worth contacting the service center so that they check the contacts of the connector's functionality and, if necessary, replace it;
- If you regularly use headphones and speakers, make sure they are functional and setting the volume level in them to the maximum. Try connecting them to another computer and check their sound reproduction level.
- Use special programs to increase the sound volume (for example, Sound Buster), as well as video players with sound amplification (GOM Player, VLC and several others). Just remember that excessive amplification of sound using such means can negatively affect the performance of your laptop's speakers.
Video instruction for increasing the sound on a PC
Some users recommend using the "Equalizer" option in the speaker properties, and setting all the sliders in the equalizer to maximum in order to make the sound on the computer stronger. Unfortunately, this will only have a palliative effect - you will be able to amplify the sound for a short time, while the speakers of your laptop will be subjected to additional stress, after a short time they will begin to "wheeze", and then completely fail. If you agree to risk the dynamics of your laptop - go for it.
For the rest, I suggest using the option with loudness, as well as using software instruments that can amplify the sound qualitatively. If nothing helps at all, then I would advise you to contact the service center - it is quite possible that the reason for the quiet sound in your laptop is hardware problems with the sound card.
As it usually happens - "I sit, touch nothing, listen to music, and then BAM and the sound disappeared." Well, or when you turn on the computer, the sound is not played. Or maybe when you enter the toy, it is not there? Here in this article we will just consider the possible reasons for the loss of sound. It may seem banal and familiar to someone, but not everyone knows it.
9) You can see in the BIOS if this function is disabled.
Make sure three more devices are connected. ... The loudspeaker is immediately ready for pairing. Updating using the app. If new updates are available, just hit update and the app will take care of the rest. However, if you are unable to update the app, or prefer the traditional desktop update system, we have a solution for you.
In this case, try the following.
- Stop the flow of the second device that is not currently in use.
- Turn the device off and on again.
Due to the fact that they have different versions, I can only use my example: the "Devices Configuration" menu item and the "High Definition Audio" sub-item - the switch opposite to it must be in the "Enabled" position.
10) Start - Control Panel - Administrative Tools - Services.
We find our Windows Audio service, if it is disabled, then enable it. The startup type must be "Automatic".
There are two ways to check the speaker volume.
- Press the speaker plus and minus buttons at the same time.
- The current state of the battery is then reported.
- You can change the language of the message in the "Settings" section of the application.
Q: How do I choose music for my alarm?
How to turn off the alarm or activate standby
- Notes.
- You may need to set the speaker to pairing mode.
- Activate the repeat mode by clicking the corresponding icon.
- Turn off the alarm by placing the arrow from left to right.
If disabled, then RMB and Properties
11) Check the sound by connecting other speakers or headphones.
12) If you have multiple outputs for audio (Green connectors), for example, like mine, and in front of and behind and in speakers - check everything.
Q: What happens if the phone with the alarm is lost?
After an hour, the alarm will automatically turn off. In standby mode, the alarm starts one hour after the last sleep timer. The music service or internet radio application you have selected may not have been activated. To use an alarm music service.
Play the music you want from a music service. ... However, you can only set one alarm time, not multiple times at different times of the day. You can find this setting here. Device documentation. You can also request additional information from the manufacturer. Not all speakers are supported by this feature.
13) The most terrible point and the most terrible reason - the sound card burned out.
Do not forget to reboot after completed "activities".
Write in the comments if something didn't work out - I will definitely help.
Hello to everyone who reads my blog regularly or came to it for the first time. Can you hear me? Correctly and should not hear, because you are not listening to a podcast, but reading an article. It's another matter if you turn on music, launch a movie or your favorite game, and you will not hear anything, although everything else indicates that the application is working normally. In this situation, my article will come in handy. After all, it will talk about what to do if the sound on the computer disappears. If you have lost sound on your laptop, then this article also applies to these devices. There is no difference.
In this case, follow the instructions below. The speaker app should now be properly installed. ... It also provides other ways to make it easier to find your device and protect your data. However, to protect your data, you can do the following. There you may be asked for the serial number of the device. ... The rack is still and nothing happens. If after some time there is a blow, everything will be fine. If not, you must act. With the right tricks, you can tune your system again and avoid hardware defects.
The disappearance of sound can be caused by several reasons, ranging from the most commonplace, to those that indicate that you cannot do without a visit. Let's start dealing with them in order.
Sound is lost due to computer settings
Quite often, the absence of sound is associated with one's own inattention or forgetfulness. You could have just turned it off and lost sight of it. Pay attention to the lower right corner of the screen, where the clock and icons of the programs in the system tray are displayed.
A bottleneck occurs when you have multiple programs running at the same time. Isolated failures can have different causes. If, for example, both a web browser and after a short time, often plugins and extensions are to blame for the sudden shock. In this case, start your browser in Safe Mode.
If the browser is working correctly, you have already identified the problem and can remove the incorrect behavior from the browser add-on management. If the browser is only launched when certain web pages are called, the most important plugins or components are missing.
Note: if there is no icon in the tray, then go to the article: "" and solve this issue.
Do you have a red icon on your speaker meter to indicate that the sound is muted?
If not, then open the soundbar and see at what level the volume control is.
Why is there no sound on the computer
Corrupt flash settings are a common cause of browser freezes, especially when playing videos. Our advice. If the browser freezes or blocks another application, you can do it quickly. To do this, right-click on the taskbar and select "Start Task Manager". In, it starts right away and then from the Start Task Manager dialog box. In the new window, click on the entry with the status "No confirmation" and select "End task". In this case, the task manager is your most important weapon.
It may well turn out that the sound is on, but at the minimum level. If so, then just set the required volume.
It is also worth checking the physical connection of the speakers to the sound card (located on the back of the computer) and whether they are connected to the network, just in case. If you have lost sound on your laptop, then you can find these connectors on the left or right (very rarely, when in the back).
For more information on the sound card, read: "". If everything is fine, but there is still no sound, restart the computer and move on to more complex reasons.
If there is no response, only the reset switch knob remains. All unsaved data will be lost. They are often precursors to hardware defects. We have collected you for a photo show. A ten-step guide. What can you do and save your system, programs and, above all, personal data? This can have many reasons, before you come to a solution, you must first know the exact problem. Fortunately, there are sufficient measures for diagnosis and treatment. We've divided this guide into ten steps that lead to your goal.
No sound after installing programs or due to driver failure
If, after viewing and changing the settings in Windows, you still cannot understand where the sound on the computer disappeared and what to do next, you do not understand, then I give one more tip that you can use.
Other common reasons for a sound card to stop working. Each program that is installed on a computer requires certain resources for its work. Therefore, after installing a new application, it may well turn out that it conflicts with existing ones.
Step 2: No video signal - or just distorted
However, one menu or the other may differ slightly from version to version. We explain in step how this is done. There may still be many reasons for this. At this stage, we want to rule out that our problems are related to the hard drive or, if necessary, resolve it. To do this, we need this - and so that he can not only diagnose but also find that the problems were fixed immediately, we must boot from an external drive. Respects a separate partition that is separate from the system partition.
As a result, some elements of the operating system cease to function normally, in particular the audio system. This happens especially often after installing the same type of programs. For example, the installation of several anti-virus programs at the same time is generally not recommended, as it can lead to a complete failure of the operating system. If the sound disappears after installing applications, try uninstalling them.
Safe system startup
If we start with this section, we can also use the hard disk utility. Click the hard disk utility. In many cases, this method helps to eliminate a limiting factor such as problematic expansion. By the way, a large number of cache files were removed, which also solves the problem.
After starting the secure system, a perfectly normal boot process may occur. When the problem is solved: Congratulations! If not, read it. Because checking the integrity of the filesystem seems to be true. You can detach the handle when a black screen appears on a black screen.
If such measures did not help, it is possible that your sound card drivers stopped working. Such a situation in IT slang is also called “drivers have flown”. You can check this as follows. Go to "Start" - "Control Panel" and open "Device Manager".
You need the Sound, Video and Game Controllers tab. If the drivers are damaged or are missing for some reason, then you will immediately notice warning icons in the form of yellow question or exclamation marks.
Now wait for the command line to appear and enter. But yes, because we are assuming you are using a German keyboard. Then your screen shows. In the first case, you can leave the "restart" in the command line and press the "Enter" key. In the second case, run the check again, but you don't even need to enter the command again. Either you will be able to complete the second, third, or further attempts.
Before doing this dozens of times and hundreds of times in vain, you need to take the next step. And yes, you can reset it. So it is quite appropriate here. If you have learned the piano or any other instrument that requires special skill, you now benefit. Everyone else should be slightly distracted by the boat or a third helping hand.
In this case, you need to reinstall the drivers. This can be done using the CD that comes with any computer. If you have a separate sound card, then you need a disk for it. If it is integrated, and this is the most common option, then the drivers for the sound card are located on the disk to the motherboard.
We have arrows in our quiver. For the latter, it's easy to read: Unplug the power, wait 15 seconds, plug it back in, wait five seconds, then plug it back in. With the power supply completely removed, press the power button for five seconds, then reinstall the battery and reconnect the power supply. Then the car boots up with hope. Release all buttons, press the power button again. ... At the very least, it's time for a data recovery before we actually need to restart the system.
If you are a notorious backup watcher, then this step is your last kapka to get your data. This can lead to a last minute rescue of your data. Now drag and drop the data you want onto another external medium. You can also clone an entire hard drive, such as a hard drive utility.
I remind you that all the methods described in this article help to solve the problem not only in the computer, but similarly, all actions are used when you have lost sound on your laptop and what to do with this problem, we will understand further.
It is possible that the driver disk is missing. You shouldn't get upset too much, since the most common drivers can be downloaded from the Internet. Moreover, there are a lot of sites that offer driver downloads.
Step 9: reboot the system
Does the computer boot even in target disk mode? It remains to rebuild the system a little. To do this, go back to step 3, in recovery mode. After a successful start, in this case, you also have the option to reinstall the system, there is an emergency partition. This process is really self-explanatory. Instead of emergency partitions, you can also reinstall the system from bootable external media such as critical: from the rescue partitions, you get the current system, which is also installed on the primary partition that no longer wants to be.
In order to save yourself the trouble of diving into the technical details, I recommend that you completely reinstall the audio drivers. Usually in the disc menu or in a file downloaded from the Internet, it is activated by the item "Install audio driver" or a similar item.
BIOS settings
If none of the above helped, and there is still no sound on the computer, check to see if it is disabled in the BIOS. It is loaded before the main operating system starts up.
This could be the first public beta. Low volume for audiobook. Low volume for audiogram. The volume of the audio device may be too low. Proven, potential problems. At least one of the services is not running. Sound mute disabled When the mute function is enabled, the device does not produce sound. Audio is not installed by default. The default sound is usually used to play or record sounds on the computer. Speaker, headset, or headphones are not connected. An audio device must be connected to play or record sound. Increase the audio device volume To increase the volume, move the volume control in the volume mixer. Volume Adjustable volume for "Audio playback". At least one of the services is down. Audio is disabled. State Information about the state of the audio device.
- The problem doesn't exist!
- Sound check.
- There might be a problem with your audio device.
- At least one audio service is not running.
- Determined!
- Low volume for audio.
- Volume The volume used for Audio Playback.
- Volume: 0% Completed!
- Check the sound.
- There may be a problem with the audio device.
- At least one audio service is down.
Depending on which program you have installed, you can get into it using one of the Del, F2, F10 or F12 keys. They must be pressed immediately after turning on the computer.
In the BIOS, you will need the "Devices Configuration" menu item and the "High Definition Audio" sub-item. Check that the switch opposite to it is in the "Enabled" position.
Broken sound card
End Point: Loudspeakers, Headphones, Headphones. Installed Sound: This file contains the data stored in the registration for all audio devices. Sound Resolves issues that prevent sound playback or recording. Package version: 0 Play audio files Plays sounds and other audio files.
We have collected the most common hardware errors, revealing the causes of the problems and how to fix them. However, sending a computer to the manufacturer or taking it to an electronics store for repair is time consuming and often expensive.
Sound is lost due to disabled Windows Audio service
Make sure Windows Audio is enabled on your computer. To do this, click "Start" - "Control Panel" - "Administrative Tools" - "Services". Also, the "Services" window can be opened as follows "Start" - select "Run", enter "services.msc". After that click on the "OK" button.
In the "Startup type:" select "Auto", click on the "Run" button, this field on the "Apply" and "OK" buttons.
Additional Information
If a program for a sound card is installed on your computer, then it does not forget to look at what settings are set for sound in it.
I have listed all the most common reasons when you do not know why the sound on the computer disappeared. If, after all the measures taken, he did not appear, I can only sympathize. Chances are good that you have a problem with your sound card. In this case, the best option would be to replace the sound card (they are inexpensive) or contact a service center.
And one more small nuance that is often forgotten. If your computer is under warranty service and you suspect that the sound card has burned out, do not rush to open your case. This is a common reason for a service center to refuse service.
That's it for today. I wish you that you will never again think about what to do if the sound disappears on the computer, but you will always hear it. Subscribe to my blog's mailing list, because there are still many interesting and useful articles ahead.
One of the questions that sooner or later almost every user of a stationary personal or mobile computer faces is "how to increase the volume of the headphones." It may seem that if the speakers are located directly on the ears, then the problem of too quiet sound cannot exist. Alas, this is not the case. Forums on the global network are full of topics "how to increase the volume of headphones on a computer." Often there are given quite acceptable recommendations, but sometimes completely impractical ones come across. Today we will talk about how you can increase the headphone volume using the available methods.
Sound shaping
Perhaps no one will argue with the fact that you need to understand why sound limitation occurs (and whether it actually exists), and only then use some solution. So in this case - before you figure out in practice how to increase the volume of the headphones, you should remember the theory. Sound is vibrations of air of a certain frequency.
To reproduce the sound stream, various solutions are used: from the simplest, like an ordinary whistle, to universal dynamic heads (speakers). The latter are just used to generate a stream consisting of different frequencies. Large and small speakers, as well as headphones, basically contain such devices. A stationary magnet creates a constant field. Next to it is a movable membrane combined with a coil, through which an alternating current of the required frequency passes. Since when it occurs in the coils, its own field is generated, then their interaction occurs and the membrane is attracted / repulsed, creating air vibrations, that is, sound.
How do I increase the volume of my headphones?
Thus, several parameters affect loudness at once.
- current strength in turns, which is determined by the characteristics of the sound card amplifier (the higher the current, the stronger the field and the more significant the diffuser shift);
- the value of the electrical resistance of the coil in the membrane;
- transition resistance in connectors;
- the capabilities of the membrane itself (diffuser).
So how do you increase the volume of your headphones? Obviously, one of the easiest ways is to increase the amperage. This can be done programmatically and by making changes to the hardware. Since not everyone can solder transistors, we do not consider the latter. To increase the sound in the Windows operating system, you need to click once with the left mouse button on the speaker image in the lower right corner of the desktop (where the clock is). The higher the slider, the louder the sound. In fact, this is software control of the sound card's gain, or, which is also true, increasing the current. Note that if wheezing and frequency cuts begin in the sound stream, this means that the diffuser is physically unable to move a greater distance (displace the air mass) and further increase in volume is not recommended to keep it from damage. If the sound is "clear" but quiet, then you can try using programs that can additionally amplify the signal. For video, this is PotPlayer - in its settings, you need to set the gain for DTS / AC3 \u200b\u200bdecoding and raise the mixing levels. In the well-known Winamp, we can recommend choosing WaveOut (and not Direct Sound) as the playback device. The menu window appears when you press Ctrl + P in the application. Sometimes software zoom does not give the desired results. The reason is the lack of matching between the output stage of the amplifier and the resistance of the speaker coil in the headphones. For example, if the amplifier is designed to work with a load of 4 ohms, and this headphone model has an impedance of 32 ohms. The only solution is to replace it with another model. Sometimes a simple cleaning with fine sandpaper (zero) of the connector, with which the headphones are connected to the sound card, helps.
Wanting to view family video archives stored on your PC's hard drive, you suddenly discover that the soundtrack is missing. If you take into account that your user knowledge is basic, then you can imagine how difficult this situation is for you. Of course, you can't even imagine how to make sound on a computer, and everyday experience only suggests what, perhaps, will correct the situation. However, that was not the case. Well, let's take a look at the basic ways to restore sound. Indeed, in this case, silence is far from golden!
Where to look for the reason?
It is possible that careless file manipulation resulted in the removal of the sound driver. It is likely that the machine code that controls the voice acting "flew" spontaneously. The hardware of the computer, and in particular, could well fail. A newly installed program may also be a "silent game". Finally, a malicious virus may well be the culprit of computer "silence". And these are not all possible reasons, due to which many users have a question "how to make sound on a computer." From this moment, we will consider the situation in more detail and with the following conclusions.
Banal carelessness
The sound level icon "hangs" in the service room on the right. In the case when the displayed "speaker" frames a prohibiting sign, it is necessary to move the slider up. Again, a strikethrough symbol in the form of an X means a malfunction of the audio device, that is, the driver may have "crashed". Make sure system sounds are turned on. It is worth noting that the silence of the speakers during video playback is often expressed by the lack of multimedia codecs. In this case, it is recommended to install the complex package "K-Lite Codec Pack". The installation process will only require a few click on the "Next" button. However, there are plenty of opportunities and options for how to make sound on a computer.
Device Manager - Trouble Beacon
4) In the “volume settings” tab, you can adjust the playback sound volume in all applications. I recommend just setting all sliders to maximum for now.
5) But in the "Control of audio devices" tab, everything is more interesting!
Here you need to select the device through which your computer or laptop plays sound. As a rule, these are speakers or headphones (next to them, the volume slider will probably still run
If you have anything being reproduced at the moment).
So, you need to go to the properties of the playback device (in my case, these are speakers).
Levels: here you need to move the sliders to the maximum (levels are the volume level of the microphone and speakers);
Special: uncheck the box next to the "Limited output" item (you may not have this tab);
Improvement: here you need to check the box next to the “Loudness compensation” item, and uncheck the other settings, see the screenshot below (this is in Windows 7, in Windows 8 “Properties-\u003e additional features-\u003e volume leveling” (check the box)).
If all else fails, still a quiet sound ...
If all the recommendations above have been tried, and the sound has not become louder, I recommend doing this: check the driver settings (if everything is OK, then use it to increase the volume). By the way, special. the program is also convenient to use when the sound is quiet when watching a separate movie, but in other cases there are no problems with it.
1) Checking and configuring the driver (for example, Realtek)
It's just that Realtek is the most popular, and on my PC, on which I am currently working, it is installed.
In general, the Realtek icon is usually displayed in the tray, next to the clock. If you do not have it like me, you need to go to the Windows control panel.
Correct sound reproduction on a PC is one of the most important conditions for comfortable work and leisure. Adjusting sound settings can be difficult for inexperienced users, and components can often malfunction and the computer becomes dumb. In this article, we'll talk about how to customize the sound for yourself and how to deal with possible problems.
The sound is configured in two ways: using specially designed programs or a system tool for working with audio devices. Please note that below we will talk about how to adjust the parameters on the built-in sound cards. Since its own software can be supplied with the discrete software, its configuration will be individual.
Method 1: Third-party programs
Sound tuning software is widely available on the web. They are divided into simple "amplifiers" and more complex ones with many functions.
Method 2: Standard tools
The built-in system audio tweak tool isn't phenomenal, but it is the main tool. Next, let's look at the functions of this tool.
You can access the settings from "Taskbars" or the system tray, if the icon we need is "hidden" there. All functions are called by right clicking the mouse.
Playback devices
This list contains all devices (including those that are not connected, if they have drivers in the system) that are capable of playing sound. In our case it is "Speakers" and "Headphones".
Let's choose "Speakers" and press "Properties".
- Here in the tab "Are common", you can change the name of the device and its icon, view information about the controller, find out which connectors it is connected to (directly on the motherboard or front panel), and also disable it (or enable it if disabled).
- Tab "Levels" contains a master volume slider and a function "Balance", which allows you to manually adjust the strength of the sound on each speaker separately.
- In chapter "Enhancements" (incorrect localization, the tab must be called "Additional features"), you can enable various effects and adjust their parameters, if provided.
- In the tab "Additionally" you can adjust the bit rate and sampling frequency of the reproduced signal, as well as the exclusive mode. The last parameter allows programs to play sound on their own (some may simply not work without it), without resorting to hardware acceleration or using a system driver.
The sampling rate must be configured the same for all devices, otherwise some applications (for example, Adobe Audition) may refuse to recognize and synchronize them, which results in no sound or the ability to record it.
Note: if you change settings, remember to press the button "Apply"otherwise they will not take effect.
Please note that enabling any of the above effects may temporarily disable the driver. In this case, restarting the device (physically disconnecting and reconnecting the speakers to the connectors on the motherboard) or the operating system will help.
Now press the button "Tune".
For headphones, only the settings contained in the unit are available "Properties" with some changes to the functions in the tab "Additional features".
Defaults
Defaults for devices are configured as follows: on "Default device" all audio from applications and OS will be output, and "Default communication device" will be enabled only during voice calls, for example, in Skype (the former in this case will be temporarily disabled).
Recorders
Let's move on to recording devices. It is not hard to guess what it is "Microphone" and perhaps more than one. Also it could be just "USB device"if the microphone is in the webcam or connected via a USB sound card.
If you press the button "Tune", then we will see a window with an inscription stating that "speech recognition is not provided for this language." Unfortunately, today Windows tools cannot work with Russian.
You come home, turn on your computer or laptop, and while it boots up, make plans: now I’ll turn on the music, sit on the Internet for half an hour, and then watch a new movie. Launch the media player with your favorite tracks and ... find that there is no sound on the computer.
What the heck? Everything was fine yesterday, everything worked! It seems that nothing was installed and nothing was "chemically", but there is still no sound in the speakers (or headphones).
Unfortunately, this happens quite often. On any computers and laptops. And on any operating system - Windows 7, 8, 8.1, 10 or XP. Nobody is immune from this.
However, you do not need to blindly search for the cause of the malfunction. After all, below are the most common problems due to which the sound on a PC may disappear. And 10 ways to solve them.
Check your speakers
If the sound on your computer does not work, then first of all you need to check the speakers. Perhaps you connected them incorrectly. There are 6 outputs on the back of the PC. You need green (it is he who is intended for speakers / headphones) and pink (if there is a microphone).
You may have confused the outputs.
The front panel of the system unit may also have headphone and microphone jacks. And in some cases they are not color coded. Therefore, try to connect the connectors in a different order.
Also, there are times when the inputs wear out. In this situation, you need to correct them, i.e. disconnect and reconnect. This can help. At the same time, it will not be superfluous to clean the PC from dust.
Also check if the speakers are on. The fact that they are working is indicated by a small LED.
Check your sound settings
The next thing to do is check your sound settings. Maybe it is disabled or screwed to a minimum.
Let's consider the setting using the example of Windows 7 (in Windows 8 and 10 it is carried out in the same way):
1. Click Start - Control Panel - Hardware and Sound. 
2. Select the item "Sound". 
3. All audio devices are displayed here. Select a specific device and click "Properties". 
4. In the new window, you need to look at 2 things: 
- whether the device is detected - if not, then you need to install the drivers
- whether it is on - if not, then turn it on (select the appropriate item).
5. In the same window, go to another tab - "Levels". Look at the volume scale - it is recommended to set it at 90-100% (at least for a while until the sound appears, and then adjust it for yourself). 
6. Next, in the same window, go to the next tab - "Additional". When you press the "Test" button, music will play for about 5 seconds. 
If you do not hear anything, then save the settings and go to the 7th point.
7. Go to "Hardware and Sounds" again and select "Adjust volume". 
Here you can see if the sound is screwed to the minimum. 
8. You can also check your audio settings. Click on the speaker icon in the lower right corner (where the time is displayed) and check the volume level.
Sound driver missing
The next step is to check the sound driver on the PC. Quite often, problems arise precisely because of him. Yes, and you could already find this malfunction in the second paragraph (when you looked to see if the audio device was detected in Windows).
To check for the driver, you need to go to "Hardware and Sound" again and select "Device Manager".
In a new window, open the item "Sound devices". If the sound card is connected correctly, it will be listed.
If it is displayed, but a yellow or red sign is on in front of it, it means that the driver is either not working correctly or is not installed at all. There are two ways to install the driver:
- from the disk that comes with the PC (you need a disk for the motherboard);
- from the Internet (if there is no disk or you have a laptop).
If you do not know what kind of sound card you have, you can use the AIDA64 program - it will show not only its model, but also tell you the address from where to download the driver.
If there is a sound card, but Windows does not see it for unknown reasons, then it is difficult to say what the problem is. The device may be poorly connected. Or completely faulty. It can also be related to the hardware of the PC.
Video / audio codecs missing
If there is sound when loading Windows, but there is no sound when you turn on any video file, then the reason lies in the video player, codecs or file (it may be damaged).
In the first case, you can put another video player. For example, today KMPlayer is one of the most popular. Plus it already has built-in codecs for playing video files.
If the problem is with the codecs, then you need to remove them and install new ones. It is recommended to use a set of codecs called K-Lite Codec Pack. It has all the codecs you need and even a built-in video player that can open almost any file.
Incorrect BIOS settings
This kind of problem is extremely rare, since usually the sound card is always on. But if you like to overclock your computer or for other reasons change the settings in the BIOS, then you should check them. And restore sound on the computer (if necessary).
To do this, you need and find the line that contains the word "Integrated".
If everything is in order, then exit the BIOS (if you changed the settings, do not forget to save them).
Virus software and viruses
Another reason is virus software and viruses. Today there are so many of them that it is difficult even to say what "surprises" they can present.
The best option would be to scan your computer or laptop with any antivirus (do not forget to update the databases before that). It could be Kaspersky, Dr. Web, etc. For example, DrWeb CureIt is considered a good option (you don't need to install it).
Restoring sound on a computer
If you still can't hear sound from your PC or laptop, here are some more tips:
- If literally yesterday everything was fine, but today the sound disappeared, it is possible that new drivers were installed or some programs that caused this problem. In such cases, you can try.
- If there are more speakers, connect them to your PC and reinstall the drivers (remembering to remove the old ones).
- If all else fails, you can go for broke and (do not forget to save all important files before this, because they will be deleted). After installation, immediately install the sound drivers. If the sound appears - then watch what software you are installing.
- Another option is to connect headphones instead of speakers. Or vice versa.
- And the very last option is to contact the service center for help.
However, one of these methods should help. Therefore, if you have lost sound, try different options - it is quite possible that you will be able to solve this problem on your own. In 95% of cases, this problem is solved on their own.