明明是 digital，為什麼會有分別？

eyebyeye

PhantomGTR 發表於 2014-6-12 11:24
>> 快一倍會否誇張左d? 可能有其他原因或是否"美麗的誤會"? 有時覺得WiFi越來越慢, 我把Modem及WiFi Rout ...

唔需要太敏感, 開輕鬆d啦, 講LPS神化左末必就是懷疑你賣LPS的嘛!而事實上我都認同LPS對Audio的確是有很大效益的。哈哈!

PhantomGTR

eyebyeye 發表於 2014-6-12 12:02
唔需要太敏感, 開輕鬆d啦, 講LPS神化左末必就是懷疑你賣LPS的嘛!而事實上我都認同LPS對Audio的確是有很大 ...

nicknick

edison133 發表於 2014-6-12 11:26
Nicknick 兄, 你所提及的是正確理論.
但只合適用在spdif(同軸)及機內的傳送!
HDMI 及 LAN 已是 balanced  ...

我文科生唔識呢啲電子嘢㗎, 我係響James親口教授時學習的, 佢係有份制定HDMI規格又係制作Kordz HDMI線的勁人, 我冇理由唔信佢喎:

http://post76.hk/forum.php?mod=v ... p;page=1#pid2262140

http://www.post76.com/wordpress/?p=48606

edison133

nicknick 發表於 2014-6-12 16:28
我文科生唔識呢啲電子嘢㗎, 我係響James親口教授時學習的, 佢係有份制定HDMI規格又係制作Kordz HDMI線的 ...

可能佢咁解說你們會容易D明瓜。
以下是HDMI 的傳送方法, 大家一齊學習!

Transition-minimized differential signaling (TMDS) is a technology for transmitting high-speed serial data and is used by the DVI[1] and HDMI video interfaces, as well as other digital communication interfaces.

TMDS was developed by Silicon Image Inc. as a member of the Digital Display Working Group.

TMDS is similar to low-voltage differential signaling (LVDS) in that it uses differential signaling to reduce electromagnetic interference (EMI) which allows faster signal transfers with increased accuracy. TMDS also uses a twisted pair for noise reduction, rather than coaxial cable that is conventional for carrying video signals. Like LVDS, the data is transmitted serially over the data link. When transmitting video data, three TMDS twisted pairs are used to transfer video data. Each of the three links corresponds to a different RGB component.



http://en.wikipedia.org/wiki/Tra ... ferential_signaling
http://en.wikipedia.org/wiki/Low-voltage_differential_signaling

key

又學到嘢喇

chezmike

我睇過老外一編文章，digital運算時都唔可以100%準確，電路版、LAN線、USB傳送digital signal時其實都重係用analog模式傳送，當中點樣處理digital signal loss同digital noise都同處理analog noise一樣。

zoneaudio

我估係由a點傳送到b點在時間上有唔差，
數位電路，時鐘，準確度先至重要