1000刀的HDMI线？ Linus谈科技
https://www.bilibili.com/video/av4324517 老外评测。老外认为和随机线画质看不出区别 本帖最后由 LV火花 于 2019-11-13 00:04 编辑
1千刀=8千···虽说这HDMI线较真起来确实成本不低，但就弄个影院有必要如此么，几刀的线已经足够好了。
况且既然画质看不出区别想是曲线救国为了音质，稍微讲究的基本都不会用HDMI走声音，能略微影响声音的恐怕也只剩下地线了:lol 画质不像音质那么玄乎 我的經驗告訴我,HDMI線對畫質還是有差別的,目前還沒試過是否越貴畫質會越好,我只是拿了隨機線跟400元的線對比 本帖最后由 DXDXDX 于 2019-11-13 10:31 编辑
说的跟他懂hdmi线制作流程和测试规格一样，讨论有没有影响要先把hdmi白皮书和仪器厂公布的测量指南读一读，区别小不代表没区别
HDMI is an analog signal.In HDMI, a digital bit stream is modulated into an analog signal. Think of WiFi: It might seem digital, but I assure you, the radio signal is an analog waveform. HDMI is not Morse Code; to pack billions of bits per second over each wire, a modulation scheme is used. Bits can most definitely be lost over the cable. This data loss is referred to as Bit Error Rate.HDMI has a design in which video data is transmitted in three separate twisted pairs: R, G and B, or Y, Cb and Cr. A fourth twisted pair carries a clock signal. What’s interesting about this is that each pixel is comprised of information from all three differential pairs. Because of this, when a bit error occurs, it is nearly impossible to see. For example, in Y Cb Cr, if one bit of Cr is lost, the luminance of the pixel is unchanged, and a small portion of one color component will slightly change. It is almost impossible to see such an error unless the error rate is very large. HDMI cables are required to pass certification testing which requires Bit Error Rates many, many times lower than what the best human eye can perceive under the best possible conditions. But uncertified cables which are manufactured with low quality are “just good enough,” and higher bit error rates can occur.So as you see, the answer to your question is: DEFINITELY there is a difference between one HDMI cable an another, but you may have difficulty seeing it. If you see sparkles or horizontal lines on your TV, try using a better HDMI cable.
在这个论坛，线材的弯曲弧度都会有巨大影响，就问你服不服 HDMI线差别很大的，视频里测试方法不对。 huangshun839500 发表于 2019-11-13 14:15
在这个论坛，线材的弯曲弧度都会有巨大影响，就问你服不服
服了。。。
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