HDMI cable can output audio and video at the same time?
More and more home users began to use the computer to connect the LCD TV to watch a variety of movies, the connection is generally the computer's video and audio signals through the video card and sound card output, but this requires more cables, but also may cause audio and video synchronization problems, then if the use of HDMI cable, what will happen? HDMI cable can output audio and video at the same time, the following small series will explain to you.
1.HDMI cable can transmit uncompressed high-definition video and multi-channel video in high quality, the maximum data transmission speed is 5Gbps, and there is no need for digital-to-analog and analog-to-digital conversion before signal transmission, which can ensure the highest quality audio and video signal transmission.
2.HDMI cable support 5Gbps data transmission rate, up to 30 meters, enough to cope with a 1080p video and an 8-channel audio signal, in addition to HDMI cable support EDID, DDC2B, so HDMI equipment has "plug and play" characteristics.
3.HDMI cables can simultaneously transmit lossless high-definition video and multi-channel audio, and the transmission signal type and performance of HDMI cables are related to their internal structure. Its structure is high density color nylon braided net + high quality iron spray powder magnetic core + double sided 4 layer aluminum foil and high density double shielding braided net + pure copper tinned anti-oxidation core + plug copper shell gold plated 15U.According to the different electrical structure and physical shape, HDMI interfaces can be divided into four types: type A, type B, type C and type D. Each type of interface consists of a socket for the device end and a plug for the cable end, with a low-voltage drive of 5V and an impedance of 100 ohms.
4.HDMI can not only meet the current highest resolution of 1080P, but also support the most advanced digital audio formats such as DVD audio, support eight-channel 96KHZ or stereo 192KHZ digital audio transmission, and only one HDMI cable connection, eliminating the need for digital audio wiring. At the same time, the additional space provided by the HDMI standard can be applied to future upgraded audio and video formats. Enough to play 1080P video and 8-channel audio signals. And, with demand for 1080P video and 8-channel audio signals below 4GB/S, there's still plenty of room for HDMI. This allows it to connect the DVD player, receiver, and PRR separately with a single cable.
Compared with DVI, the HDMI interface is smaller and can transmit both audio and video signals. DVI cable length should not exceed 8 meters, otherwise it will affect the picture quality, and HDMI cable length can reach 15 meters. As long as one HDMI cable, it can replace up to 13 analog transmission lines, which can effectively solve the problem of messy wiring behind the home entertainment system.
