Recently, the 4K Blu-ray player Q7-4K version of the opener exposed the back interface diagram, in addition to the HDMI interface, three minutes AV interface, the fiber interface and coaxial interface so many users feel very puzzled, these two interfaces in the end is what? What is the difference? Now let's introduce it to you by Xiaobian:
Both optical fiber and coaxial cable are digital audio interfaces. The optical fiber further enhances the long-distance anti-jamming ability on the basis of the coaxial cable. Some enthusiasts said that the distance is within 2 meters and the coaxial cable is better than the optical fiber; the optical fiber is more than 2 meters away. Better than coaxial! This is because the coaxial signal is converted to an optical signal and it is lost after conversion. why? Let's look at the working principle of fiber and coaxial.
・Fiber optic principle:
Fiber Optic Interface - Electrical signal to optical signal - Optical fiber - Optical signal to electrical signal
・Coaxial principle:
Coaxial interface - electrical signal - coaxial - electrical signal
After the above comparison, it can be seen that the optical fiber passes through two conversions and the loss during short-distance data transmission is relatively large. However, in reality, there are many aspects of audio effects that need to be considered, such as the quality of the optical fiber or coaxial cable.
The weakness of coaxial signal lines is that they only have long-distance transmission losses. While most home users use a longest transmission distance of about one meter, the advantage of coaxial is unparalleled, whether in the CD conversion or It is absolutely lossless when it is received. Therefore, the use of coaxial transmission, the resulting digital signal into audio signals will be very pleasant and beautiful, so most enthusiasts will use coaxial transmission, and will not use fiber, even if it is 800 yuan-class fiber optic cable can not be 200 The meta-coaxial lines are on par with each other. However, optical fiber also has its own strengths. We can see below the optimal choice of light and coaxial in different situations.
In the case of theoretically high fiber or coaxial quality:
1. Short distance: good coaxial effect (because of the multi-channel conversion of optical fiber)
2. Long distance: with fiber optic effect
Xiao Bian concludes:
Both light and coaxial have their own advantages. To choose between different occasions, you can't blindly say who is good or bad. When choosing the output mode, the friends only need to master the phrase “choose coaxial within 2 meters and fiber over 2 metersâ€.
Both optical fiber and coaxial cable are digital audio interfaces. The optical fiber further enhances the long-distance anti-jamming ability on the basis of the coaxial cable. Some enthusiasts said that the distance is within 2 meters and the coaxial cable is better than the optical fiber; the optical fiber is more than 2 meters away. Better than coaxial! This is because the coaxial signal is converted to an optical signal and it is lost after conversion. why? Let's look at the working principle of fiber and coaxial.
・Fiber optic principle:
Fiber Optic Interface - Electrical signal to optical signal - Optical fiber - Optical signal to electrical signal
・Coaxial principle:
Coaxial interface - electrical signal - coaxial - electrical signal
After the above comparison, it can be seen that the optical fiber passes through two conversions and the loss during short-distance data transmission is relatively large. However, in reality, there are many aspects of audio effects that need to be considered, such as the quality of the optical fiber or coaxial cable.
The weakness of coaxial signal lines is that they only have long-distance transmission losses. While most home users use a longest transmission distance of about one meter, the advantage of coaxial is unparalleled, whether in the CD conversion or It is absolutely lossless when it is received. Therefore, the use of coaxial transmission, the resulting digital signal into audio signals will be very pleasant and beautiful, so most enthusiasts will use coaxial transmission, and will not use fiber, even if it is 800 yuan-class fiber optic cable can not be 200 The meta-coaxial lines are on par with each other. However, optical fiber also has its own strengths. We can see below the optimal choice of light and coaxial in different situations.
In the case of theoretically high fiber or coaxial quality:
1. Short distance: good coaxial effect (because of the multi-channel conversion of optical fiber)
2. Long distance: with fiber optic effect
4K Blu-ray player open Bor Q7-4K front view
Xiao Bian concludes:
Both light and coaxial have their own advantages. To choose between different occasions, you can't blindly say who is good or bad. When choosing the output mode, the friends only need to master the phrase “choose coaxial within 2 meters and fiber over 2 metersâ€.