what is hdmi
hdmi is a high-definition multimedia interface. It is a fully digital video and sound transmission interface that can send uncompressed audio and video signals. Its biggest feature is that it can transmit video and audio signals at the same time, and the quality is very high. It uses digital signal transmission to avoid interference and distortion problems in analog signal transmission, thereby ensuring the quality and stability of audio and video signals.
HDMI (High Definition Multimedia Interface) is a high-definition multimedia interface. It is a fully digital video and sound transmission interface. Can send uncompressed audio and video signals. The HDMI interface was first launched in 2004 to replace older analog signal audio and video sending interfaces, such as SCART or RCA terminals. The HDMI interface has a wide range of applications, including televisions, digital audio, set-top boxes, laptops, game consoles, integrated amplifiers, digital audio and other equipment.
The biggest feature of the HDMI interface is that it can transmit video and audio signals at the same time, and the quality is very high. It uses digital signal transmission to avoid interference and distortion problems in analog signal transmission, thereby ensuring the quality and stability of audio and video signals. In addition, the HDMI interface also supports the transmission of video signals with multiple resolutions such as high definition and ultra high definition, up to 8K resolution, meeting the needs of modern high-definition audio and video equipment.
The technical specifications of the HDMI interface are constantly updated, and there are currently multiple versions, including HDMI 1.0, 1.1, 1.2, 1.3, 1.4, 2.0 and 2.1, etc. Different versions of HDMI interfaces differ in terms of transmission speed, bandwidth, supported resolution, etc. For example, HDMI 1.4 version supports up to 3840x2160 (4K) resolution and 30Hz refresh rate, while HDMI 2.0 version supports up to 4K resolution and 60Hz refresh rate. HDMI 2.1 version further improves bandwidth and transmission speed, supporting higher Resolution and refresh rate video signal transmission.
The advantage of the HDMI interface lies not only in its high-quality audio and video signal transmission, but also in its convenience and flexibility. The HDMI interface adopts a standardized design, and the connection between different devices is very simple. Only one HDMI cable is needed to connect the devices. In addition, the HDMI interface also supports hot-swappable and plug-and-play functions. Users can connect or disconnect the HDMI interface without turning off the device, which is very convenient.
The application range of HDMI interface is very wide, covering almost all high-definition audio and video equipment. In terms of TVs, the HDMI interface has become one of the standard features of TVs. Users can connect set-top boxes, DVD players, game consoles and other devices through the HDMI interface to achieve high-definition audio and video playback. In terms of notebook computers, HDMI interfaces are also widely used. Users can connect notebook computers to monitors or projectors through HDMI interfaces to achieve large-screen display. In addition, HDMI interfaces are also used in digital audio, comprehensive amplifiers, game consoles and other equipment to bring users a higher-quality audio-visual experience.
In general, the HDMI interface is a very important high-definition multimedia interface. With its high-quality audio and video signal transmission, convenience and flexibility, it has become an indispensable part of modern high-definition audio and video equipment. missing part. With the continuous development of technology and the expansion of the market, HDMI interfaces will be used in more fields, bringing users a better audio-visual experience. At the same time, as consumers' requirements for high-definition audio and video quality continue to increase, the HDMI interface will continue to be upgraded and improved to meet the changing market needs.
The above is the detailed content of what is hdmi. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1386
52
![Soundbar detected as monitor screen on Windows PC [Fix]](https://img.php.cn/upload/article/000/465/014/170835733166289.jpg?x-oss-process=image/resize,m_fill,h_207,w_330)
Soundbar detected as monitor screen on Windows PC [Fix]
Feb 19, 2024 pm 11:42 PM
On Windows PCs, some users have discovered that the Soundbar is recognized as a monitor when connected to the HDMI port. This may cause some confusion, but the solution is not the only one. How to Connect a Soundbar to a PC via HDMI Most soundbars use HDMI, optical, or 3.5mm audio connections. If your soundbar only supports HDMI connections, it must be connected to an HDMI port labeled HDMIARC. Many TVs or monitors are usually equipped with multiple HDMI ports, one of which should support the ARC protocol that complies with the HDMI standard. In other words, HDMI is an interface used to transmit audio and video. If the device does not have an HDMI port, consider using a monitor.
Does hdmi support hot swapping?
Feb 01, 2023 pm 05:18 PM
HDMI supports hot swapping. HDMI is a very efficient fully digital image and sound transmission interface. On the 19th pin of the HDMI female connector, there is a half-section hot-swappable monitoring pin. When the HDMI is unplugged, this monitoring pin is the first to break. After the HDMI circuit detects the disconnection, it will notify the input and output devices to stop working, which is used for hot swapping.
What is the function of hdmi cec
Feb 20, 2023 am 11:30 AM
HDMI CEC represents the function of consumer electronics control, which can control all HDMI-enabled devices through a remote control. HDMI's CEC function brings a lot of convenience to users. It allows end users to use one remote control to control multiple CEC-enabled HD devices, eliminating the need to use multiple remote controls to control electronic devices.
Computer screen turns black and white when HDMI is plugged in
Feb 19, 2024 pm 02:30 PM
Black and white screen appears on your computer when HDMI is plugged in? This will cause your computer screen to lose its color and ruin the visual experience. Fortunately, you can solve the problem by following some simple suggestions. Fix an issue where your computer screen turns black or white when HDMI is plugged in If your Windows computer screen turns black or white when HDMI is plugged in, follow these suggestions: Reinstall the display driver Perform a monitor calibration Reset the display Control panel settings Check HDMI Ports and Cables Now, let's take a look at these in detail. 1] Reinstall the display driver First try to reinstall the display driver to solve the problem of computer screen turning black and white. Click Start, search for Device Manager and open it. Expand display adapters
Does HDMI support 144hz?
Mar 07, 2023 pm 02:58 PM
HDMI supports 144hz, but the prerequisite is that both the monitor and the graphics card have HDMI2.0 interfaces, and the monitor must also support 144hz before the 144hz refresh rate can be selected; the HDMI interface is a high-definition video interface that is used in mainstream notebooks, LCD TVs, graphics cards, They are relatively common in motherboards.
What is the difference between hdmi and vga
Oct 17, 2023 pm 03:11 PM
The difference between HDMI and VGA is: 1. HDMI uses digital signal transmission based on the TMDS protocol, while VGA uses analog signal transmission based on RGB green and blue signals; 2. HDMI supports higher resolutions, while VGA only supports up to 1080p@60Hz. ; 3. HDMI supports higher color depth, while VGA only supports up to 1080p@8bit; 4. HDMI uses digital signal transmission, while VGA uses analog signal transmission; 5. HDMI is compatible with a variety of devices, while VGA has poor compatibility, etc. wait.
What external devices can be connected to the HDMI interface?
Nov 22, 2022 am 11:02 AM
The HDMI interface can be connected to set-top boxes, DVD players, personal computers, TVs, game consoles, integrated amplifiers, digital audio and televisions and other equipment; the HDMI interface can send audio and video signals at the same time. Since the audio and video signals use the same wire, Simplifies the installation difficulty of system lines.
What is the difference between hdmi and vga interfaces
Aug 29, 2023 pm 04:17 PM
The difference between HDMI and vVGA interfaces is: 1. HDMI is a digital signal interface, while VGA is an analog signal interface; 2. HDMI supports high-resolution and high-definition video output, while VGA’s resolution output is relatively limited; 3. HDMI The interface usually uses a small plug, while the VGA interface uses a larger threaded plug; 4. HDMI is a newer standard and has better compatibility, while VGA is an older standard and has poor compatibility with modern digital devices; 5. HDMI Audio and video signals can be transmitted simultaneously, while VGA can only transmit video signals.