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Analysis: what are the TV box interfaces? What's the use of it?

  • Author:tomato
  • Source:sztomato.com
  • Release on:2017-07-18
With the smart TV box in the video function, entertainment experience is increasingly complex, in the high-end Android Smart TV Box equipped with rich interface, these seemingly simple and clear interface you really understand them? 

For example, the USB interface in addition to the expansion of the mobile storage, can also be extended to USB HDMI in addition to wireless devices, connected TV can also through the AV decoding of multi-channel audio power amplifier, AV interface can also interface with external speakers by red and white......
HDMI interface
In 1080P HD era, HDMI development is very rapid, but in that era dominated by the 1.4 edition of HDMI, after the middle resolution of 4K HDMI 1.4 is still the protagonist, from the second half of 2016 ULTRA 4K's, HDMI 2 began a large area of the outbreak, all new listings this year, the Best Android TV Box HDMI input are equipped with HDMI 2 interface. HDMI 2 has a greater bandwidth than HDMI 1.4, the former 18Gbps, and the latter 10.2Gbps, capable of transmitting 4K@60P, 32 channel tracks, supporting the highest 1536KHz audio sampling rate, and becoming richer in functional extensions. 

Whether 2 or 1.4 versions of the HDMI interface, we usually use the most external TV simultaneous transmission of video and audio signals (due to the TV only about the stereo system, so at this time only about sound effects), in fact as long as sources record high-definition video and high sound track, HDMI interface can support the highest resolution of 4K transmission and 7.1 surround (or Dolby panoramic sound) track information could be sent to the back-end AV function of decoding a HDMI output to the display device, and decoding surround sound rail output to a maximum of 7.1 home theater system, so as to bring more immersive audio-visual experience.

Fiber audio
There are some older AV amplifiers that don't have HDMI input, but we also want to feel the surround sound effect. 

Then we can through the optical audio output to the AV amplifier to decode audio and audio transmission, optical fiber properties due to the stronger anti-interference ability, especially audio fancier love, but not only is the only transmission optical audio up to 5.1 channel audio signal, while both the Android Set Top Box HDMI input and optical fiber the audio is another big advantage is that we can pass the HDMI output video to the TV, the TV will mute the audio transmission, optical fiber track information to decode the AV power amplifier, so as to realize the sound separation, whether it is quality or quality is more pure.