How to fix the computer without sound?

Recently, many users have turned to the computer to listen to music and watch the video and found that the computer has no sound. What is going on? In fact, this is mainly caused by computer hardware problems and software problems, and the hardware problem is mainly the sound card is broken, or the output sound interface is damaged. How to solve this problem? The following small series introduces you to the solution that the computer has no sound.

First, the computer has no sound and has a small speaker

Step 1: First check if there is a sound control icon (small speaker) in the task bar at the bottom right corner of the desktop. If there is no small speaker, restart the computer and then a small speaker (below). If there is this icon, it means that the sound card is installed on the computer. Does not solve the problem with the sound and the following examination methods:

1, with the trumpet-click the left mouse button, the sound volume adjusting switch will control window, as shown below:

Check if the volume is adjusted to the minimum, is it checked mute (Figure 2), many of the previous novice friends to deal with the computer no sound when many are either to adjust the sound to the lowest, or check the mute It caused the computer to have no sound, which is a low-level mistake that novice friends often make.

2, or right-click on the small speaker in the lower right corner of the computer - turn on the volume control - master volume - all mute (cancel “√” cancel). Can solve the problem of no sound. As shown below:

Second, from the hardware to determine the cause of the computer no sound:

computer has no sound, check your speakers or headphones have a problem. Whether the speaker or the earphone audio cable is well connected to the computer, and the interface is plugged in.

Let's start with a desktop computer. If you plug in the headphones, turn the headphones off to see if there is any sound, if there is sound. Check if the headphone cable is plugged in. The microphone signal lines of the general sound signal line are all color-coded. Generally, the sound signal line will be green, the microphone signal line will be red, and there will be a small icon next to it. Note that it can be observed. If it is not the problem, change the headset to test. After changing the earphones, the sound that can be heard is caused by the headphone problem.

Other reasons are, the computer audio output interface is damaged. Look for computer maintenance when this problem occurs.

One more thing to note is that a typical desktop computer will have 2 pairs of audio interfaces distributed in front of and behind the chassis, so if the front interface is useless, try the rear socket. Because some computer installers may forget to connect the socket signal line on the front of the host to the motherboard. I have encountered many of these situations at this point.

Third, what if the computer does not have audio equipment? (Computer sound card driver installation error, check whether the computer sound card driver is installed properly)

Possible reasons for the computer without audio equipment: 1. The computer sound card is damaged. 2. A virus in the computer. 3. The audio device service is disabled.

What if the computer does not have an audio device? First use the anti-virus software to scan the computer for anti-virus and check whether the computer virus destroys the audio device. If there is no virus problem, follow the steps below: Go to My Computer - Blank Area Right-click on the mouse and select Properties - Select Hardware - Select - Device Management. The normal sound card device and driver are shown in the figure below. If the situation in Figure 3 below (ie, a yellow exclamation point in front) occurs, there is a problem with the sound card device and driver.

Click Device Manager to enter the following computer hard drive to view the situation, as shown below.

properly installed sound card driver interface

as shown above is normally driven screenshot sound card installed, the sound card driver installation problem screenshot yellow exclamation point on a sound card device! As shown below:

sound card driver is not functioning properly, there is an exclamation point

If you have a sound card driver exclamation mark, indicating the current system does not meet the hardware drivers drive computer, the solution can be Change the system again, of course, this is not necessary to find the computer sound card model, directly Baidu to find the driver installation, how to view the sound card hardware model of your computer? Here are a few simple methods:

Install the sound card driver method:

1. Download the “360 driver master” computer software to view the specific brand model of the computer sound card.

360 driver master download address:

2, after the download is complete, install the 360 ​​driver master software, then run.

After running master drive 360, a drive scanner for automatically oriented, if there is no sound card driver is detected as shown below:

3, click on a button to complete the installation Sound card driver installation.

Fourth, play video computer no sound how to do?

There are usually audio buttons on the web page. When the audio button is turned off, the played video will have no sound. At this time, only the audio mute button needs to be activated, and the sound can be played normally.

Fifth, computer microphone no sound how to do?

1. Check if the microphone is muted. Press the following: Right click on the small speaker in the lower right corner of the computer - turn on the volume control --- option --- property --- (bottom) microphone volume (front “√”).

2. 1 step. If it still doesn't solve the problem, then test if the microphone is normal. Press the following operation: Start---Program-----Attachment----Entertainment-----Recorder, open the recorder, speak to your microphone, and click the red recording button to see if you can record it. Sound (whether the green bar of the sound wave flashes up and down), if you record it, your microphone is intact. If you can't record it, your sound card may not be set correctly or the microphone is not connected properly or the microphone switch is not turned on. If your settings, microphone, microphone and host connection are ok, it is likely that there is a problem with your sound card driver. Solution: Please put the sound card driver into your light drive and press the sound card manual to drive.

3. See if the microphone cable is plugged in.

Other reasons (usually rare)

If the sound card is not an integrated sound card, then open the case and check if the sound card is installed. If it is not installed, after rebooting, boot the test; if the sound card is already installed, then remove the sound card, and then clean the dust on the motherboard sound card slot and sound card (especially check if the golden finger has mildew, etc.) After cleaning, re-install it, and the general fault can eliminate the computer without sound. Most of the computers we use today are integrated sound cards.

The above is the solution for the computer without a sound introduced by Xiaobian. It is very simple to read the above content! There are many reasons why the computer has no sound and there are many solutions. It depends on which method you choose to solve.