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Bosa_nova - 2005/5/15 23:38:00
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xrcd:
使用JVC獨家開發的K2超級數位編碼器,進行模擬/數碼的轉換,這個20bit,128倍超取樣的模疑/ 數碼的轉換器,可提供108dB的動態範圍,±0.05dB的平直響曲線,並極大的消除了低電頻信號的諧波失真。
經K2超級數位編碼器編碼的20bit數碼信號送入SONY PCM-9000光碟錄音機中,20bit的信號在加工過後再轉成16bit,K2數碼系統在20bit轉成16bit時,保留了低電頻信號的完整性,也保證了真正16bit錄音的範圍。
16bit數碼信號經過EFM(8-14調制)編碼被送至JVC另一個K2雷射刻錄系統,這個刻錄系統與K2超級數位編碼器系統一樣,為使xrcd的數碼傳輸更為穩定精準,製作xrcd的所有設備均經過獨立隔離濾波的電源供應器,減少系統運行時不純淨的交流電對數碼的雜波干擾。
由於xrcd全部按照16bit/44.1KHz的CD標準製作,所以不需特殊的CD唱盤或解碼器就能明顯展現出與眾不同的優越性。



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K2  CD:
由日本VICTOR所研發的之K2雷射定位錄音技術,是一種傳奇性的方法,對於消除雜音及任何可能在CD唱盤之雷射光學讀取器的差異,都予以消除。這樣的技術使得原音得以忠實呈現。這個產品已經由JVC以K2超級類比母帶系統,重新製作母帶。
Real - 2005/5/15 23:49:00
由此来看两者有区别吧!?
Bosa_nova - 2005/5/16 0:49:00
根据我今天收到的《金装蔡琴》里的说明,国内厂AXX的东西,已经在JVC完成了从编码》数位转换》制作母盘的工序,就差最后的压片工序了,他的压片工序是在上海联合光盘厂完成。
由于JVC自己本身的K2技术产品,都分开三个不同价位的东西:“xrcd”、“xrcd2”和“K2”。不同价的东西会完全一样么?
我不是JVC的技术人员,也不是唱片行业的从业者,我更不懂这些复杂的制作技术。我贴的名词解释只是刚从网上查回来给大家分享的。
按我自己的理解,“xrcd2”是“xrcd”的升级版。“K2”与“xrcd2”相比,可能保留了一部分技术,还有在关键的最后压片工序。
若AXX的出品要用xrcd商标,则全部工序要在日本完成。其价钱就会高两倍了。按照中国人的崇洋心态,国内发烧友会买AXX么?
(他们已经说得很清楚,K2只要花1/3的价钱,就可以买到xrcd技术含量一样的东西)
三年前我连HDCD是什么都不知道,你问问现在有多少人知道K2是什么东西?保证大部分人都答不出来。
就等于索尼的“SBM”,环球的“dsc”。。。。谁了解?
日本人太会做生意了,xrcd是最近炒的很热的东西,大家还有些印象,AXX当然会将一脉相承的K2搭上了关系,事实上xrcd就是精心制作的k2。所以,我并不觉得AXX有什么错,只是大家中毒太甚,过分看中那四个字母了。你想想,为什么外国人很少这样搞,大厂都是普通CD。就算有技术都不过分张扬,比如上面提到的索尼和环球。把有一些技术含量的普通CD,可以炒得火热,真佩服日本人的聪明~,炒一炒,就又可以赚多一笔了。
好了我不想多说,特别是中毒太甚的人,点都不会明白道理的。
好困,睡觉了。。。。。。
Bosa_nova - 2005/5/16 1:25:00
外国的月亮总是圆的。。。。。
mydisc - 2005/5/16 1:18:00

        :(
Real - 2005/5/15 23:57:00
Bosa_nova 在 2005-5-15 23:53:35 发表的内容
看来扫盲无效。。。。。。



有教无类!!!别气馁!!!


那具体点,国内厂AXX出的是------------------???
Real - 2005/5/16 7:42:00
明白了:显然AXX出品不是“xrcd”
(定性与应与音质无关,与价格无关----------简单常识)

如下做法会否使人容易误会吗????
XRCD 20bit K2 Super Coding 的系列产品,XRCD大大个字,20bit K2 Super Coding 小小个字
Bosa_nova - 2005/5/16 9:33:00
下乡种树 在 2005-5-16 9:10:49 发表的内容
你看看你的前言后语~~


你觉得我的还是你的脑袋有问题?

扫完还是盲。。。。。。
Bosa_nova - 2005/5/15 23:53:00
看来扫盲无效。。。。。。
下乡种树 - 2005/5/16 9:42:00
前面你说三个东西不一样:“不同价的东西会完全一样么?”,尤其是“K2可能保留了一部分技术”;
后面你又说完全一样:“买到xrcd技术含量一样的东西”“xrcd就是精心制作的k2”
非要我这样说你才理解?你说谁的脑袋有问题?
VV - 2005/5/16 9:54:00
1,B兄你总是自顾自说,为什么不正面回答别人的提问呢
2,既然xxcd不是“神物”,何故AXX要与它沾亲带故???
Bosa_nova - 2005/5/16 12:14:00
有人光在嘴巴上指责AXX骗局是多么脏,却不肯贴实质性的东西给大家看,肯定是ABC的对手,故意出来搞混潭水的。

他不贴,我来贴!

下面是JVC公司xrcd官方网站上的文字资料,
和网页链接,大家看一看就会很清楚了,
也可以挑挑毛病,ABC上的说明跟JVC的有无出入?

e x t e n d e d r e s o l u t i o n c o m p a c t d i s c f r o m J V C
The EXTENDED RESOLUTION COMPACT DISC (XRCD) from JVC brings the listener
higher fidelity and improved audio quality by enhancing the process of mastering and
manufacturing compact discs.
In most cases, after a record has been mastered, a U-matic 1630 format tape is
prepared and shipped to the manufacturing plant. At this point the artist, producer and
engineers can only hope that their work will return to them in a relatively unchanged
form. This manufacturing chain is not standardized, and while digitally correct, does not
always reproduce the highest audio quality possible. Since the manufacturing process
works as a number of components linked together in series, the overall performance can
only be limited by each stage. This means that extreme care and attention must be paid
to every aspect of mastering and manufacturing to get the most out of the process.
JVC has painstakingly gone through every step of the mastering and manufacturing
process with the goal of retaining the highest sonic purity of the original music.
This was accomplished not by just measuring the results, but in extensive listening tests
to determine the best configuration. Every combination of equipment, connections, AC
power regulation, word clock distribution, mastering format, delivery system and compact
disc construction was tested. The result is the XRCD, a compact disc that offers clearer
definition, more accurate imaging, and higher audio quality than any compact disc before.
The XRCD process starts at the mastering level. The analog signal is taken directly
from the mastering console and digitized using JVC’s 20 BIT K2 SUPER CODING.
The K2 is a 20 bit, 128 times over-sampling analog to digital converter which provides
a dynamic range of 108 dB, -96dB THD, flat frequency response in the passband to within+
0.05dB, and a substantial reduction of harmonic distortion for low level signals. The
K2 SUPER CODING also provides a bit down mode to convert 20 bits to 16 bits and
interface signal reshaping to eliminate time base jitter in the digital data stream. These
two functions are taken advantage of during manufacturing. The 20 bit digital signal is
then transferred to a Sony PCM-9000 using SDIF-2. The Sony PCM-9000 stores the information
on a magneto-optical disc instead of transferring it to the U-matic 1630 format
tape. The XRCD process takes advantage of the stability of the magneto-optical disc,
as well as its 20 bit capacity, and by using it as the audio storage medium for delivery
to manufacturing.
At the JVC manufacturing plant in Yokohama, the 20 bit Sony PCM-9000 magnetooptical
disc is is converted to 16 bits using the K2 SUPER CODING in bit down mode,
via a SDIF-2 connection. This stage resolves the high resolution 20 bit signal to 16 bits
while retaining the integrity of the low level information, which insures a true 16 bit
dynamic range without noise shaping. The 16 bit signal is then EFM encoded.
Another K2 circuit, called the K2 LASER, is used to regenerate the EFM signal
right before going to the laser of the glass cutter. This last stage is the same circuit used
for the K2 SUPER CODING interface, which eliminates any time based jitter that may
be present in the data stream. Throughout this process, the word clock is amplified and
distributed to the other stages to keep signal quality at a maximum. Similarly, all equipment
is run off regulated AC power feeds to provide a pure base from which to work. All
cables and connections between equipment use the SDIF-2 interface for sonic quality
and music integrity. Tests determined the SDIF-2 offered a superior transmission of
digital audio, far above the AES/EBU standard. A variety of materials, including 24k gold
and pure copper were tested, and ultimately aluminum was decided upon after
extensive listening tests. The end result of this manufacturing process is the highest
quality digital transfer from mastering to compact disc.
All of this attention to detail allows the listener to enjoy the music just as the artist,
produced and engineers originally intended it. Every nuance of the performance is
duplicated as it was recorded, with higher accuracy in both soud quality and imaging.
This is the EXTENDED RESOLUTION COMPACT DISC.
For more information on the XRCD please visit WWW.XRCD.COM. • info@xrcd.net



xrcd制作流程图





JVC公司xrcd官方网站:http://www.xrcd.net/Shopping/process.asp

xrcd官方网站的文字说明:





These two functions are taken advantage of during manufacturing. The 20 bit digital signal is then transferred to a PCM-9000 using SDIF-2. The PCM-9000 stores the information on a magneto-optical disk instead of transferring it to the U-matic 1630 format tape. The xrcd process takes advantage of the stability of the magneto-optical disk, as well as its 20 bit capacity, by using it as the audio storage medium for delivery to manufacturing.


At the JVC manufacturing plant in Yokohama, the 20 bit PCM-9000 magneto-optical disk is converted to 16 bits using the K2 Super Coding in bit down mode, via a SDIF-2 connection. This stage resolves the high resolution 20 bit signal to 16 bits while retaining the integrity of the low level information, which insures a true 16 bit dynamic range without using noise shaping. The 16 bit signal is then EFM encoded.

Another K2 circuit, called the K2 Laser, is used to reshape the EFM signal right before going to the laser of the glass cutter. This last stage is the same circuit used for the K2 Super Coding interface, which eliminates any time based jitter that may be present in the data stream. Throughout this process, the word clock is amplified and distributed to the other stages to keep signal quality at a maximum. Similarly, all equipment is run off regulated AC power feeds to provide a pure base from which to work. All cables and connections between equipment use the SDIF-2 interface for sonic quality and music integrity. Tests determined the SDIF-2 offered a superior transmission of digital audio, far above the AES/EBU standard. A variety of materials, including 24K gold and pure copper were tested. Ultimately aluminum was decided upon after extensive listening tests. The end result of this manufacturing process is the highest quality digital transfer from mastering to compact disc.

All of this attention to detail allows the listener to enjoy the music just as the artists, producer, and engineers originally intended it. Every nuance of the performance is duplicated as it was recorded, with higher accuracy in both sound quality and imaging.

This is the Extended Resolution Compact Disc.

Bosa_nova - 2005/5/16 13:48:00
你会见我一次就拍我一次,决不食言?

哈哈,WELCOME!WELCOME!

能在枪弹下和手榴弹下过的来的,还会怕砖头?

我肯定不会说“yes ”or“no”。因为我不是JVC和ABC,也不是文化部门,也不是权威检测部门,我哪里来这个权利?

你没看全,就别妄自指责,
我敢说的话就是xrcd 与K2跟普通CD是同一格式的东西,并非什么神物。
再重申一遍,我不是什么“烧友”,也不知“烧友”定义是什么!别用这个名堂来吓我!
Bosa_nova - 2005/5/16 11:47:00
哈哈,clk兄和长老终于肯出来说话了。
Bosa_nova - 2005/5/16 12:11:00
长老的话一针见血,我一直认为有人IQ有问题,原来是精过头了,看来我也看错了!
下乡种树 - 2005/5/16 9:10:00
Bosa_nova 在 2005-5-16 0:49:47 发表的内容
由于JVC自己本身的K2技术产品,都分开三个不同价位的东西:“xrcd”、“xrcd2”和“K2”。不同价的东西会完全一样么?
Bosa_nova 在 2005-5-16 0:49:47 发表的内容
按我自己的理解,“xrcd2”是“xrcd”的升级版。“K2”与“xrcd2”相比,可能保留了一部分技术,还有在关键的最后压片工序。
Bosa_nova 在 2005-5-16 0:49:47 发表的内容 (他们已经说得很清楚,K2只要花1/3的价钱,就可以买到xrcd技术含量一样的东西)
Bosa_nova 在 2005-5-16 0:49:47 发表的内容
事实上xrcd就是精心制作的k2。

你看看你的前言后语~~
Bosa_nova - 2005/5/16 9:51:00

中毒太甚!中毒太甚!
把xxcd当作是什么“神物”,硬要把他跟SASD 、DVD-audio相提并论。当作是一个新格式。还是找找自己的原因吧!是别人J,还是自己脑袋有问题。

我敢说,那3个东东都是普通CD格式的CD.。别幼稚了!
clk - 2005/5/16 10:34:00
好聲就行了管它什麼錄音什麼格式
zjize - 2005/5/16 11:18:00
有人分明在找茬!!!
Bosa_nova - 2005/5/16 12:38:00
我不是JVC,我无权答你,
你自己问他去!
VV - 2005/5/16 10:10:00
Real 在 2005-5-15 23:57:00 发表的内容
Bosa_nova 在 2005-5-15 23:53:35 发表的内容
看来扫盲无效。。。。。。



有教无类!!!别气馁!!!


那具体点,国内厂AXX出的是------------------???
zjize - 2005/5/16 12:39:00
B兄又不是ABC公司的,怎么有可能回答你的问题。
你愿意怎么理解是你的事,ABC确实用了XRCD的技术,标XRCD也不能说错。
全世界所有的公司或多或少的都在干这类事,有什么奇怪!!
Bosa_nova - 2005/5/16 10:07:00
买到xrcd技术含量一样的东西 是我引用人家的话。

我就搞不懂了,你们怎么不会把“赛扬2.4G”、想象成为“奔腾IV”呢? 微软也说他们都是奔腾IV的架构。
第一贴的解释中也清楚的说明了xrcd是K2技术的CD。xrcd对工序的描述很详尽,但K2就简单扼要。怎么还是有人不明白????????????????????
VV - 2005/5/16 10:22:00
等您25分了还没下文

我又来一个:(Bosa_nova:
第一贴的解释中也清楚的说明了xrcd是K2技术的CD。xrcd对工序的描述很详尽,但K2就简单扼要。怎么还是有人不明白???????????????????? )


这来说xrcd标上K2是没问题的,K2制作标上xrcd就值得商榷!!!


(您可别再举例那那谁谁谁也在混水、骗人。。。。。来。。。。。。。。)
vv - 2005/5/16 9:41:00
B兄你总是自顾自说,为什么不正面回答别人的提问呢:
明白了:显然AXX出品不是“xrcd”
(定性与应与音质无关,与价格无关----------简单常识)

如下做法会否使人容易误会吗????
XRCD 20bit K2 Super Coding 的系列产品,XRCD大大个字,20bit K2 Super Coding 小小个字


您再绕圈子,我也识为您是AXX的对手,故意引人去。。。。。。。。。。。拍砖了。
VV - 2005/5/16 13:05:00
zjize 在 2005-5-16 12:39:17 发表的内容
B兄又不是ABC公司的,怎么有可能回答你的问题。
你愿意怎么理解是你的事,ABC确实用了XRCD的技术,标XRCD也不能说错。
全世界所有的公司或多或少的都在干这类事,有什么奇怪!!



-----------------
请搞清概念!!!
我按B君思路组织一下:用K2技术符合XX流程的才是XRCD用K2技术“没”符合XX流程的应不是XRCD

只能说:某公司实用了K2技术!!!(XXX确实用了XRCD的技术---------------XRCD对应的不是技术!!!IQ?)
tigerkiller - 2005/5/16 14:40:00
Bosa_nova 在 2005-5-16 14:36:06 发表的内容
楼上,你还是从头到尾看清楚3个题目的贴子再说吧!

笑话!自由论坛,你有什么资格叫我闭嘴?

你是那个版的版主?



         我不是此地版主——版主们才不管这事呢,都忙EVD去了。

    我就是个普通网友。我仍然建议你闭嘴,不然我照拍不误。

    还悄悄跟你说一声:在此地说话之前,须把你脑子里混乱的逻辑理一理,再把毫无章法的言辞清一清,不然徒自遗人笑柄。
tigerkiller - 2005/5/16 14:26:00
Bosa_nova 在 2005-5-16 13:48:27 发表的内容
你会见我一次就拍我一次,决不食言?

哈哈,WELCOME!WELCOME!

能在枪弹下和手榴弹下过的来的,还会怕砖头?

我肯定不会说“yes ”or“no”。因为我不是JVC和ABC,也不是文化部门,也不是权威检测部门,我哪里来这个权利?

你没看全,就别妄自指责,
我敢说的话就是xrcd 与K2跟普通CD是同一格式的东西,并非什么神物。
再重申一遍,我不是什么“烧友”,也不知“烧友”定义是什么!别用这个名堂来吓我!



          呵呵,你还好意思跟我说什么枪弹手榴弹?俺才真是枪林弹雨里过来的,有着亲眼目睹大好青年身中流弹倒下的经历。

    不过,该砸的砖头我还是要毫不犹豫地砸过去。

    “因为我不是JVC和ABC,也不是文化部门,也不是权威检测部门,我哪里来这个权利?”?

     怎么,这下又妄自菲薄了?刚刚不是还妄自尊大到要对这里的人搞“扫盲教育”么?

    那又是谁给你的权利搞“扫盲教育”?

    “我敢说的话就是xrcd 与K2跟普通CD是同一格式的东西,并非什么神物。”?

    你之前的帖子里何时说过这样的原话?一直在忽悠连忽悠、废话连废话,一句有用的都没有。

    现在才承认“我敢说的话就是xrcd 与K2跟普通CD是同一格式的东西,并非什么神物。”?

    之前你要是真的只敢说这句话,又何来这么多烧友理直气壮地诘问你?

    你当然“不是什么‘烧友’,也不知‘烧友’定义是什么!”,但这里的其他人似乎都知道啊。谁也不会要求你成为“烧友”,可又是谁给你这个胆气令你敢在这里的“烧友”面前装模作样胡吹大气呢?

    你现在唯一能做的事就是即刻闭嘴,否则必然自取其辱。
Bosa_nova - 2005/5/16 14:49:00
除非你搞阴谋诡计,否则不用悄悄说的!
拍呀!
VV - 2005/5/16 10:39:00

好聲就行了管它什麼錄音什麼格式  
---------
那连K2也不用标了!
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