How to do if the computer has no sound? Many times, the computer has no sound for various reasons. The specific reasons are mainly divided into software problems and hardware problems. The software problems include mute virus, sound card driver, etc., and the hardware problems include interfaces, headphones, etc. What can we do if there is no sound in the computer? We can easily solve the problem after we know what it is like if there is no sound in the computer.
Generally, we deal with computer failure first by software and then by hardware. If your computer has no sound, please try the following solutions, which can be solved in general.
Method 1: check the sound control icon
If the computer has no sound, please check whether there is a sound control icon in the taskbar at the lower right foot of the desktop, as shown in the following figure:
As shown in the figure above, if there is this icon, it means that there is no problem for the sound card to be installed on the computer. Then click the sound control icon with the left mouse button, and the sound volume adjustment switch control window will appear to check whether the volume is adjusted to the lowest level and whether mute is checked. In the past, I helped many novice friends to deal with the problem of no sound on the computer. When there was no sound on the computer, most of them either turned the sound to the lowest level The lowest, or check the mute, resulting in the computer no sound, this is a novice friends often make low-level mistakes.
If you can't find the volume control icon on the desktop, it may be a driver problem. If you have driver problems, you will know how to resolve them. Some of them are not displayed.
If there is no speaker on the right side of the taskbar, enter the start settings control panel sound and audio device command to open the sound and audio device properties dialog box, as shown in the following figure:
As shown in the figure above, after turning & Radio; on, click OK, and the sound icon will appear in the taskbar at the lower right foot of the desktop. Then check whether the volume is adjusted properly and whether the mute is turned on. After correction, the computer will generally have sound.
You can also click the sound tab in this dialog box, and then click one of the program events (such as program error) in the program events bar, select a sound type, and then see whether the preview button on the right is black. If it is black, the sound card is normal. The cause of the failure may be that the volume of the system is too low, or mute is set, or the speaker is faulty.
Other reasons: if there is no sound card option in the device manager window and the sound card is an integrated sound card, then restart the computer and enter the BIOS program. Then check whether the peripheral device option in BIOS is set to 'disabled'. If so, change it to 'enable'. If I set "enable" to this setting, the sound card circuit on the motherboard may be damaged. Just repair the sound card circuit. I have to take it to repair.
Method 2: check if there is a problem with the hardware
There is no sound in the computer. Please check if there is something wrong with your speaker or earphone, if the audio cable of the speaker or earphone is well connected with the computer, and if the interface is inserted correctly.
I used to find that when a friend used a speaker or earmuff, there was no sound because the audio cable was connected to the computer. This is also a very low-level error. How can there be sound if there is no signal connected to the speaker? Some of them are directly connected to the microphone interface of the computer. It's funny to see that one of the computer interfaces is an audio interface, and the other is a microphone. You must be yourself Look, there's an icon on it. Obviously, if a rookie doesn't understand it, it's better to ask the people around him and read the manual. If the computer used to have a sound, but now it's silent, check whether the earbuds or speakers are damaged. You can try a good one.
It should also be noted that most desktop computers have two pairs of audio interfaces, which are distributed in the front and back of the chassis, so if the front interface is useless, you can try the back socket. Because some computer installers may forget to connect the signal line of the socket in front of the host computer to the motherboard. This point, the author has encountered a lot of this situation.
Method 3: check whether the computer sound card driver is installed normally
In the past, we often encounter the situation that the computer has no sound after the computer system is reinstalled. This situation is mostly caused by the driver of the computer sound card is not installed or incompatible. The solution is to find the corresponding driver of the computer sound card and install it. How to find out if the sound card driver is not installed properly? We can go to my computer - right click - Select - properties - hardware - Device Manager, as shown in the figure below:
Click device manager to view the following computer hardware drivers, as shown in the figure below.
As shown in the figure above, the screenshot of sound card driver installation is normal. The screenshot of sound card driver installation with problems is like this. There is a yellow exclamation mark on the sound card device. It is as follows:
If there is an exclamation mark in the sound card driver, it means that the hardware driver in the current system does not meet the requirements of the computer driver. The solution can be to change the system again. Of course, there is no need to find the computer sound card model. You can directly find the driver installation by Baidu. How to check the sound card hardware model of your computer? There are many methods. Here are several simple methods:
Method a: Start -- run -- input: dxdiag command -- OK, then you can open the direct x hardware diagnostic tool, and select - sound, then you can see the sound card model. As shown in the figure below:
Method B: click the yellow exclamation mark shown in the figure above, click re install driver - select Install from the list - select the path to download the sound card - confirm all the way back to complete the installation. Novice friends suggest using the following method, download a 'drive Wizard' software, in the software operation, direct installation is very convenient. There are many such software, such as 360 housekeeper software can be. Through the above methods, I believe you should be able to easily judge the reason why there is no sound on the computer.