一定有分別, 但應該唔係同個價成正比.等同其它音響線. 心理作用大d {:6_184:}, 玩音響同av 既人就係咁, 以我為例, 定時定刻就想update 吓, 咁買新野梗係要買貴過舊野架啦, 心裡只會想, 無理由貴野差過平野架.........{:1_332:}
數碼類比化,真夠癮
本帖最後由 plnl88 於 2010-7-24 14:12 編輯
嗱，純粹分享個人經驗，唔啱聽請隨便‥‥‥‥‥出盡力插。
到呢分鐘為止，個人經驗：於影像上，合規格又線材好質素的會比一般合規格的好。
實戰結果：
a) TTL 1.3b High speed/Accurate 1.3b KO 左 MPins F380/ENE/2thMax/黃金牌 1.3v。
b) 富士鍍銀 1.4a KO Buffalo 1.4a, Buffalo 1.4a KO 哂以上所有 1.3v 的 hdmi cable。
以下是小弟的一些 findings
Quote
The Oyaide DB-510 – An analog sounding digital cable
Jitter in cables:
The idea of digital cables sounding different from one another will probably shock many people. According to some, “Bits are bits” and either the digital data is perfectly transmitted or there are drops and glitches but there shouldn’t be any “in-between”.
But the reality is different. There are no 1 and 0s running around in a digital cable. Actually, the signal being transmitted is analog in nature (square waves to be precise) and there are tiny timing errors that occur in the spdif interface (called jitter) that show up in the decoded data by the DAC. So the data being transmitted can be”bit perfect” but the jitter will affect noticeably the analog output of a DAC. The jitter problem has been discussed extensively elsewhere, so I won’t go into the details.
Just know that jitter exist in cables and that it is measurable (see an old article from stereophile here: Stereophile: A Transport of Delight: CD Transport Jitter)Unquote (from http://www.head-fi.org/forum/thread/469313/review-of-the-oyaide-db-510-an-analog-sounding-digital-cable )
Quote 某論壇師兄的 reply
以audio 只有16b/44.1k規格而言hi-end廠賣$100,000+的一套transport/DA佢地研究20年用盡一切能用的最準"時鐘"甚至data全盤重整.......都搞唔掂.........又加多一條link穿起2件器材專責時基對應(即是用一鐘政策2機用同一時鐘避免差異)........至今 哈哈未解決故事待續.......
E+去到Video訊號其實複雜N倍......HDMI線結構比數碼同軸線複雜N倍先天缺憾亦多N倍......TV接收端既"改正/除錯"措施研發投入認真專注程度比起能賣每部值幾十萬蚊既pro級D/A更只係算小學級既簡化型(唔知幾時會有民用BD+TV係高級到用一鐘基準以避開data失誤呢?)......
所以當我見到部份網友深切相信並出力發言話hdmi能傳送"完全正確"訊號+TV能"完全更正"訊號時我真係想唔明佢地何以有咁堅定強烈既信念.........Unquote
Quote anothe C Hing's reply
business is business....所有野都係成本效益, 回報及資源投放問題.亦有商業決定, 奸商囤積(技術). 如果唔留d位, 又點會有青bb, 銀bb呢d產品......電視是大眾化商業產品, 9成9顧客著眼點在超薄,高科技,夠靚,夠cool.....高畫質, 某程度只是一小部份人的玩意. 就好像玩高級hifi的人一樣.
tv商不說出來, 其中一定有某些難度或者不值一提. 有好野你估拒唔想?
舉例, 以前睇電視成日有雪花, 當年菲記電視被說為接收最好, 最少雪花.然後新記又話自己研發,什麼梳形過濾...廣告滿天飛.但後來大家接收技術越來越成熟接近, 就算連其他東記等等電視都越來越少雪花, 就冇再在這點做文章了.
與其在spec講error rate0.001跟其他牌子0.002分別, 所有tv商都將戰場大力吹噓1:10000, 1:50000....最後還是...business is businessUnquote
So, in short, the temporary explanation is
1) There are errors transmitting in the cable becaus it is analogue in real life instead of 0 and 1s.
2) Audio Jitter correction is very difficult, however, video jitter correction is if you may extremely difficult.
3) Seems most of the manufacturers have given up rectifying video jitters since little manufacturers got ads in this area.
4) Thus, better cable (expensive?) better video quality.
就像我老闆一樣, 她講什麼是 LV 和 Gucci 之間的差異...但我實在無法知道其中的差別...他們只是在不同的樣式的袋...(and 每年加價) {:6_132:}
話雖如此, 她也不明白為什麼我會買 Rolex, not CASIO 如果只是為了準確...{:6_141:}
所以我的答案是 買o巴 if make you happy...
(其實這是唯一解毒方法...否則你會不斷想...)
數碼類比化,真夠癮
lunerelf 發表於 2010-7-24 09:52 http://www.post76.com/discuss/images/common/back.gif
唔係太明白= =
發表於 8 小時前 | 只看該作者 數碼類比化,真夠癮
lunerelf 發表於 2010-7-24 09:52
唔係太明白= =
我估：呢位師兄認為線材的質素對數碼訉號的影響係零或極少。線材只會對模擬訊號有大影響。
本帖最後由 里奧 於 2010-7-25 10:56 編輯
取決於技術,QC,材料,品牌等等因素.例如條線材料係用銅或銀都會令到畫質,音質有分別的. 至於賣幾多錢就係商業決定黎,有時價錢又未必能反映晒條線既價值 , 但一般情況下大牌子都有番咁上下質數(當然指既唔係用別廠OEM印自己牌子果D啦),更重要係買條線要配合番自己套器材, 可以發揮到,呢個先係重點.
平貴係會有分別, 不過玩線唔好玩要迷失晒
我條HDMI係朋友DIY{:6_182:}
不知幾好用{:6_176:}
HDMI係有質素分別，不過分別大唔大就睇你有幾高要求了
我條HDMI係朋友DIY
不知幾好用
HDMI係有質素分別，不過分別大唔大就睇你有幾高要求了 ...
鐵心心 發表於 2010-7-26 14:00 http://www.post76.com/discuss/images/common/back.gif
有幾高要求就要睇有幾多銀兩喇 {:6_174:}
