Tip 1: Why the sound is ahead of the video

Computers & Software

Tip 1: Why the sound is ahead of the video

When viewing video files, sometimes you have to deal with such an unpleasant phenomenon as the lag in the video sequence from Sound. This does not prevent, for example, when you lookA short movie, where the sound is not the most important. But if this is a film in which the characters first pronounce their words, and then appear in the frame, it's unlikely that you will enjoy viewing. Such a disjunction is called dissynchronization. The reasons for its occurrence can be in programs, in files or in hardware.

Information in the computer is abinary code, a sequence of zeros and ones that the computer understands. Video files, from short clips to full-length movies - all are coded in a special way information. And only the playback program, with the help of codecs, that is, data coding schemes, can display the image in an understandable and convenient way to view it. Most often, the difficulties with sound or video are explained very simply - the version of the codec program, the same decoding scheme of video and Sound, is not suitable for your file. The codec can be outdated, misconfigured, unstable working with your particular playback program. It's easy to check this: just open several other movies or clips on your computer. If the sound and video are working properly, then the problem is in the file itself. If the sound is still ahead of the video, then the problem is in the codecs. Download and reinstall the K-Lite Codec Pack codec - and the out of sync will disappear. To download this package, type in the query string "Download K-lite Codec" in the search bar of any search engine. Another reason for delaying the video sequence is the program itself. Try to open the "problem" file with another player, and maybe everything will work out. This can happen due to the fact that this type of video is badly recognized by this player. Especially it concerns the built in Windows program for viewing. Install any other program, for example, the universal KMPlayer or GOMPlayer and try to open the file with it. In addition to software problems, or a damaged video file, that is, one that initially has a defect with sound, there are hardware problems. In other words, computer components also age and break down. And you can understand this from external manifestations. For example, overheating of the processor often leads to a lead Sound compared with the picture. Any diagnostic program with temperature monitoring, for example, Everest or AIDA 64, can help clarify this. Run this program and look at the sensor readings, and then start the video file. If the temperature rises and the picture lags behind, then the problem is in overheating, you need to clean the system unit or change the cooler. For owners of not new computers or netbooks, in which many movies and videos are reproduced with an asynchronous sound, there is an explanation. This is due to the fact that the processing power of the processor is too low for fast image processing. When the video stretches to the full screen without losses and the appearance of squares, but at the same time "slows down" or twitches, and the sound rushes or lags behind - this is a sure sign that it's time to change the computer, or to look for video in a lower quality.

Tip 2: How to encode video

Quite often people are engaged in video encodingfiles. The file format is completely dependent on the codec generation. If the video file was generated by a codec that your computer understands well, it will be successfully launched. If it does not start, then you need to deal with encoding.

Instructions

This problem needs to be considered more globally. After all, in addition to watching a video file on the computer, some people want to run it on other devices. Unlike a computer, it happens that they read only those formats that are programmed in them. For example, DVD-players, mobile phones mp3 and mp4-players and many other devices reproduce no more than 10 most widespread formats. A computer can play files of more than 1000 different formats. It is for this reason that there are problems with the launch of movies, as well as music on devices.

It is necessary to pay attention to thisan important function of formats, like the size of an AV file. If you correctly encode, you can end up with a file that is smaller in size but with the same sound and image quality.

To change the file format, you need tothere will be an encoder. At present, there are quite a few of them. You can use the most unpretentious or professional. It all depends on your skills and abilities to work on the computer. It's best to use a simple encoder, called ImTOO 3GP Video Converter. It is quite simple and convenient to use. With it, you can perform video conversion for mobile phone, mp3-4 player and DVD-player. Install this program and run. To add a file, click on the "Add" button, then in the explorer, find the required file and "Open":

You will see this file in the main window of the program. The program will automatically determine its name, duration time, the original format, as well as the format in which the conversion will be performed. To change the format, select the file in the program window and select the required format in the "Profile" field, then click the "Encode" button. The encoding of the video file should begin. After the encoding, the file will be located in the C: Temp folder.

Tip 3: Why does the sound lag behind the video

A regular video file consists of two tracks: video and audio. If these two elements are synchronously synchronized, errors in the processing of the video clip or the video player's malfunction, there may be delays in synchronous playback of audio and video components.

Instructions

The first reason that sound may be lagging behindfrom the video track, it is usually wrong to record a copy of the movie. If the sound lags behind only when playing a specific movie, but all other video files are played on your computer normally, it is likely that the problem lies in this file. Try to download from the Internet another copy of this video, in which audio and video will be correctly synchronized.

Delay in the playback of sound video canBe caused by insufficient capacity of your equipment. This means that the computer or its operating system does not cope with the processing of the video, which causes some delays - the video quality is too high for your device. To try to eliminate this problem, try using another program for playback or download the same video, but with a worse quality. You can also try playing a video file on another computer.

The audio delay in the video file can be causedincorrect operation of the image processing software. To fix the problem, try to remove the current version of third-party codecs installed on your system. To do this, go to "Start" - "Control Panel" - "Remove Programs" and delete the corresponding menu item. Then go to the website to download the codecs and make them download or install.

It is likely that the cause of problems invideo playback may be an improper operation of the hard disk. Go to the "Control Panel" - "System" - "Hardware" - "Device Manager" - "Disk Controllers". In the suggested list, select the name of your disk and go to the "Policy" tab, where the "Enable enhanced performance" checkbox is selected. Reboot the system and try to play your video again.