The information in the computer is a binary code, a sequence of ones and zeros the computer understands. The video, from short clips to feature films — all this is coded in a special way. And only program play using the codecs, i.e. coding schemes of the data can display the image in a clear and easy to view.Most often, difficulties with audio or video are explained very simply — the version of the codec, the circuit decoding the video and audiois not appropriate to your file. The codec may be outdated, improperly configured, unstable specifically with your playback program. It is easy to verify the following: just open a few other movies or clips on your computer. If the sound and video work fine, so the problem is in the file itself. If still the sound is ahead of video, then the problem is in the codecs. Download and reinstall the codecs K-Lite Codec Pack and out of sync will disappear. To load this package, type in the search bar of any search engine request "Download K-lite Codec".Another reason for the delay of the video — it's the program itself playback. Try opening the problem file with another player, and maybe things will get better. This can happen due to the fact that this type of video is poorly recognized by this player. This is especially true of the built-in Windows program for viewing. Install any other program, for example, versatile KMPlayer or GOMPlayer and try to open the file with it.In addition to software problems, or a corrupt video file, it is a crisis that initially has a defect with the sound, there are hardware problems. In other words, the computer components are too old and broken. And you can understand it in outward appearance. For example, overheating of the processor often leads to ahead sound compared to the picture. This will help to clarify any diagnostic program with monitoring temperature, such as Everest or AIDA 64. Run this program and look at the readings and then start the video. If the temperature is rising and begins to fall behind the picture, then the problem is overheating, need to clean the system unit or to change the cooler.For owners of new computers or netbooks that many films and videos are reproduced with non-synchronous sound has its explanation. This is due to the fact that computing processor power is too low for fast image processing. When the video is stretched to full screen without loss and the appearance of squares, but it is "slow" or twitches, and the sound goes ahead or behind is a sure sign that it's time to change the computer or look for the video at a lower quality.
Advice 2: Why does the sound lag behind the video
Normal video consists of two tracks: video and audio. When incorrect synchronization of these two elements, errors in the processing of video, or an incorrect operation of the video player may experience a delay in the synchronous playback of audio and video components.
The first reason why the sound can lag behind video track usually is the incorrect recording of the movie copy. If the sound lags when playing a particular clip, but all other video files played on your computer properly, it is likely that the problem lies in this file. Try to download another copy of this video, in which audio and video are correctly synchronized.
The delay in sound reproduction video can be caused by insufficient capacity of your equipment. This means that the computer or its operating system is unable to cope with the processing of the video that is causing some delays – the video quality is too high for your device. To try to avoid the problem, try another program for playback or upload the same video but the quality is worse. You can also try to play a video file on another computer.
Audio delay in video can be caused by the wrong operation of the software image processing. To fix the problem try to uninstall your current version of third-party codecs installed on your system. To do this go to "start" - "control Panel" - "Uninstall programs" and delete the corresponding menu item. Then go to the Internet site to download the codecs and output them to download or install.
It is likely that the cause of the problems in the video playback may be improper functioning of hard drive. Go to "control Panel" - "System" - "Hardware" - "device Manager" - "Disk controllers". In the proposed list, select the name of your ROM and go to the Policies tab, where you tick the box next to "Enable enhanced performance". Reboot the system and try playing your video again.