Older picture tubes did not have a wide range of reproducible formats. And the formats themselves were few, sometimes they didn’t even think about them, because there was only an analogue television singal and a VCR.
Modern digital technologies have various forms of playback, and before watching a video you need to make sure that the TV receiver can read information from an external medium. Moreover, the number of codecs that help to recognize information is gradually increasing.
REFERENCE! The latest TV models, thanks to updating their software, can support almost all existing formats. Therefore, when buying a new TV one does not have to think about what type it supports.
What are the main formats
The first televisions with a USB output could read only photos. However, progress does not stand still. Now media files can be transferred using wireless technology, and modern models of TV receivers released over the past couple of years can play almost all existing formats, thanks to the available codecs that are constantly updated. So, the latest models can recognize:
- MPEG - 1, 2, 3, 4;
- 264 BP, MP, HP;
They should finish off file systems of external carriers, such as NTFS, FAT 32.
However, a complete and accurate list of readable formats is indicated in the instructions that come with the TV.
The most common are MPEG, DivX, H - 264.
What are the benefits of each option?
Each of the existing formats has a number of advantages.
This format has gained its popularity among viewers in that it compresses large files to a small size, while the image quality remains quite acceptable. The quality of the reproduced signal will depend on:
- Raw material. The higher the quality of the source, the better the picture and sound of the processed file;
- Bitrate and picture quality. The stronger the source file is compressed, the worse the image will be.
The advantages of the standard include:
- Good source file compression;
- Ample opportunities for managing media;
- The coding model does not stand still and is constantly updated, expanding opportunities;
It appeared as a result of hacking by a hacker organization in MPEG - 4 format. After some time, it was patented and began to develop. Now it is one of the most popular and common playback formats. Unlike its progenitor MPEG, it allows you to significantly compress the source file while maintaining its quality. However, with the advent of XviD, it became less popular.
Despite its advantages, the XviD format may not play on some devices. Sometimes for this you need to install additional software.
H - 264
The most modern format. After its appearance at the beginning of the XXI century, it quickly gained popularity and began to be used everywhere. It was possible to do this thanks to the picture of the highest quality, which is preserved after compression to the smallest weight. It is even used to record Blu-ray movies.
Why the TV does not play video, although the format is suitable
It happens that the format is indicated in the instructions as readable, but the TV refuses to read it. There may be several reasons:
- Custom Resolution. For example, a TV can play the common 16: 9 or 4: 3, and the video file has a different picture resolution. Then the TV receiver will not be able to read the source;
- Bitrate with a too high transfer rate. In this case, the file will either not play, or there will be significant desynchronization of audio and video tracks;
- Writing to external media was performed with errors or there may be no file fragments on it;
To avoid possible problems when viewing files, you must carefully study the instructions to find out what formats this TV model supports.