By PURPLELEC | 13 August 2024 | 0 Comments
Advantages of HDMI digital interface of high-definition video capture card
The emergence of bandwidth and time-varying services such as broadband network video, real-time streaming communications, large-capacity file transfer, storage area networks, and users' demand for high-quality service guarantees have put increasing demands on network bandwidth.
The HDMI interface can provide up to 5Gbps of data transmission bandwidth, and can transmit uncompressed audio signals and high-resolution video signals. In addition to the advantages of synchronous acquisition and transmission of audio and video signals and high-bandwidth transmission, the HDMI interface has several features:
High-resolution quality:
HDMI is a high-definition digital interface. Since all analog connections (such as component video or S-video) require no loss when converted from analog to digital, it can provide the best video quality. This difference is particularly obvious at higher resolutions, such as 1080p. Digital video will be clearer than component video, eliminating the softness and tailing found in component video. Small, high-contrast details such as text bring this difference to the extreme.
Audio and video signal synchronization:
A fully digital image and sound transmission interface that can transmit uncompressed audio and video signals. HDMI supports standard, enhanced or high-definition video and multi-channel digital audio on a single cable. It transmits all ATSC HDTV standards and supports 8-channel, 192kHz, uncompressed digital audio and existing compression formats (such as Dolby Digital and DTS). HDMI1.3 also adds support for new lossless digital audio formats Dolby® TrueHD and DTS-HD Master Audio™, with spare bandwidth for future enhancements and needs.
The HDMI interface is the only one that supports industrial, uncompressed, all-digital video and audio. As the latest international standard multimedia digital interface, HDMI provides an interface between video/audio sources, such as set-top boxes, DVD players; or interfaces to A/V receivers or monitors, such as digital TVs.
Expansion and ease of use:
HDMI integrates video and multi-channel audio in a single cable, eliminating the cost, complexity and confusion of multiple cables used in current A/V systems. This is particularly useful when upgrading or adding equipment; supporting plug-and-play, HDMI is fully backward compatible with DVI-compatible devices. HDMI DTV will display video from existing DVI-equipped products, and DVI-equipped TVs will display video from HDMI sources.
High Intelligence:
HDMI supports two-way communication between video sources (such as DVD players) and DTVs, enabling new features such as automatic configuration and one-touch playback. Using HDMI, devices automatically transmit the most efficient format for connected displays (such as 480pvs720p, 16:9vs4:3)—eliminating the need for consumers to scroll through all format options to guess the best viewing format.
High-definition content ready:
HDMI devices that support HDCP will be able to access advanced high-definition content now and in the future, giving us some comfort. HD-DVD and Blu-ray have delayed the activation of image resistance tags (also known as content protection tags) for today's high-definition movies to help minimize potential problems caused by conversion, but are expected to activate this tag within a few years, meaning that future high-definition movies will not be able to be played in high definition through unprotected interfaces (such as analog components).
How to choose a good external HDMI video capture card
How to connect a USB video capture card to a mobile phone and a computer
Leave a Reply
Your email address will not be published.Required fields are marked. *