f**d 发帖数: 768 | 1 这是一本计算神经科学的优秀著作,全文拷贝这里(图和公式缺),有兴趣的同学可以
阅读
如需要,我可以分享PDF文件(--仅供个人学习,无商业用途)
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖 |
|
D**********s 发帖数: 3139 | 2 音量控制对音质的影响,以前有一篇note写得不错,我找了半天才找到,其实还有用变
压器的方法,不过dac这块最保真的方法就是保持位深和标准输出电平,音量控制交给
前级和功放去管就好了,终究绕不过模拟放大这一关的。
Volume Control Technologies
Newsletter Edition:
July 2009 Issue
With the introduction of Benchmark’s HDR-VC™ (High Dynamic Range
Volume Control), many audio enthusiasts are taking another look at volume
control methods. What are the differences between the different volume
control topologies? Is one sonically superior, and why?
The important qualities to consider with respect to volum... 阅读全帖 |
|
X***y 发帖数: 3947 | 3 本班办学目标是把大家培养成创作型双语相声人才,以后海龟回国也算有个一技之长。
学费为10伪币包会。
第一堂课:
相声可以是一个人儿说的,也可以俩人儿说,还可以仨人儿说。一个人儿说的是单口儿
相声,俩人儿说的叫对口儿,仨人说的是群口儿相声。
the crosstalk can be performed by 1 person,2 persons, or 3 persons.
1-person crosstalk is called monologue, 2-person crosstalk is called kissing
, 3-person crosstalk is called threesome.
课余参考:
走自己的路,想说谁说谁去吧。 …… Walks own road, wants to say who said who
goes. …… 来一斤西瓜,称给准点儿。Comes a catty watermelon, calls for on
time.
科学家会武术,流氓都挡不住。The scientist meets the martial arts, the
hoo |
|
j****1 发帖数: 81 | 4 I'm a second year Phd student and I'm doing my prelim now. I don't know if
it's okay to post my proposal abstracts online for people to comment on.
This is one of the proposals I have to write for my prelim. I hope people on
this board could give me some feedback, especially ones that have relevant
knowledge. Thanks very much.
----------------------------------------------------------------------------
-----------------------
Cancer stem cells are considered to be the source of tumor recurrence.... 阅读全帖 |
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s****t 发帖数: 17096 | 5 原文 damimimi @a9
评测:
这台HMZ-T1在日本8月31号发表,我是9月1号那天预定的。基本上9月10号以后预定的话
就要等第二批了。
59800日元加10%的返点,和人民币不到5000吧,是在sofmap买的。比起24寸3D显示器来
,其实这台才是我一直盼着到手的。
首先说重量。420克听起来很重,其实戴在头上,按照说明书指示的3支点(后头下部,
上部,额头)好好调整的话,感觉不是很重。老婆刚刚也试了一会儿,也说还可以。
连接。HMZ-T1有HDMI Through功能,所以可以串连显示器,HMZ-T1待机的时候就可以使
用显示器。不过不能同时显示。另外,虽然解析度是720P的,PS3和PC以1080P输入,全
屏显示没有问题。解码器会自动调整。
视觉调整。说白了,就是上下和左右两个方向的调整,上下的话就是把整个机器做上下
调整到清晰,左右则是有4档内部光学部分的调整,左右移动到清晰为止。这个左右调
整的拨杆是必须同时动的,不能左右分别调整。因为俺不带眼镜,试了两次就找到
sweetspot了。估计戴眼镜的朋友可能要多花一点时间。
刚刚简单测试了一下PS3和PC,总的来... 阅读全帖 |
|
f*****g 发帖数: 3086 | 6 【 以下文字转载自 TVGame 讨论区 】
发信人: sunjot (小猪天下烙馍), 信区: TVGame
标 题: 入手SONY头戴式3D显示器HMZ-T1感想 ZT
发信站: BBS 未名空间站 (Thu Dec 1 01:37:02 2011, 美东)
原文 damimimi @a9
评测:
这台HMZ-T1在日本8月31号发表,我是9月1号那天预定的。基本上9月10号以后预定的话
就要等第二批了。
59800日元加10%的返点,和人民币不到5000吧,是在sofmap买的。比起24寸3D显示器来
,其实这台才是我一直盼着到手的。
首先说重量。420克听起来很重,其实戴在头上,按照说明书指示的3支点(后头下部,
上部,额头)好好调整的话,感觉不是很重。老婆刚刚也试了一会儿,也说还可以。
连接。HMZ-T1有HDMI Through功能,所以可以串连显示器,HMZ-T1待机的时候就可以使
用显示器。不过不能同时显示。另外,虽然解析度是720P的,PS3和PC以1080P输入,全
屏显示没有问题。解码器会自动调整。
视觉调整。说白了,就是上下和左右两个方向的调整,上下的话就是... 阅读全帖 |
|
H*g 发帖数: 2333 | 7 I took a glance at what you have here. I could only contribute my thoughts
regarding of the proposal, but not about oncology.
1. The logic flow of the first 4 sentences in the Abstract is terrible. How
about saying something like (maybe wrong in science and need to be better
rephrased) "Colon cancer is the second most common cause of death from
cancer in the United States. One of factors that contribute to this high
severity is due to its high rate of recurrence. As the source of cancer
recurren... 阅读全帖 |
|
|
M*V 发帖数: 3205 | 9 发信站: BBS 未名空间站 (Sat Oct 27 10:00:17 2012, 美东)
Joke: Presidential Debate 2012, Act III
10/22/2012
By Limin Wang
In the evening of October 16, 2012, at the Smack Complex of Hofstra
University on Long Island, New York, President Obama and former governor
Romney had the second finger-to-finger presidential debate. Candy Growly
tried her hardest to moderate them.
Outside the debate building, large swarms of people had decided on their own
to join the show. Some said that they wanted to bring their ow... 阅读全帖 |
|
W*******n 发帖数: 4140 | 10 Joke: Presidential Debate 2012, Act III
10/22/2012
By Limin Wang
In the evening of October 16, 2012, at the Smack Complex of Hofstra
University on Long Island, New York, President Obama and former governor
Romney had the second finger-to-finger presidential debate. Candy Growly
tried her hardest to moderate them.
Outside the debate building, large swarms of people had decided on their own
to join the show. Some said that they wanted to bring their own tough
questions. Some said that they wanted ... 阅读全帖 |
|
W*******n 发帖数: 4140 | 11 Joke: Presidential Debate 2012, Act III
10/22/2012
By Limin Wang
In the evening of October 16, 2012, at the Smack Complex of Hofstra
University on Long Island, New York, President Obama and former governor
Romney had the second finger-to-finger presidential debate. Candy Growly
tried her hardest to moderate them.
Outside the debate building, large swarms of people had decided on their own
to join the show. Some said that they wanted to bring their own tough
questions. Some said that they wanted ... 阅读全帖 |
|
g********2 发帖数: 6571 | 12 对话全文:
MSNBC
AM Joy
July 31, 2016
11:18:06 AM Eastern
JOY REID: And Amy, you know, to come to you on this, the stuff about Russia,
you know, encouraging-- saying “Russia, if you hear me, hack into Hillary
Clinton e-mails and find some more stuff.”
AMY KREMER: That’s not what he said, Joy! He did not say hack into her e-
mails. He said, find the e-mails.
REID: That’s how they found them. They found them by hacking.
KREMER: Well, you don’t know who found them. They haven’t verified who
found them.
... 阅读全帖 |
|
W*******n 发帖数: 4140 | 13 Joke: Presidential Debate 2012, Act III
10/22/2012
By Limin Wang
In the evening of October 16, 2012, at the Smack Complex of Hofstra
University on Long Island, New York, President Obama and former governor
Romney had the second finger-to-finger presidential debate. Candy Growly
tried her hardest to moderate them.
Outside the debate building, large swarms of people had decided on their own
to join the show. Some said that they wanted to bring their own tough
questions. Some said that they wanted ... 阅读全帖 |
|
W*******n 发帖数: 4140 | 14 Joke: Presidential Debate 2012, Act III
10/22/2012
By Limin Wang
In the evening of October 16, 2012, at the Smack Complex of Hofstra
University on Long Island, New York, President Obama and former governor
Romney had the second finger-to-finger presidential debate. Candy Growly
tried her hardest to moderate them.
Outside the debate building, large swarms of people had decided on their own
to join the show. Some said that they wanted to bring their own tough
questions. Some said that they wanted ... 阅读全帖 |
|
s*****a 发帖数: 1022 | 15 ☆─────────────────────────────────────☆
caterr (归与不归) 于 (Sun Apr 24 10:06:23 2011, 美东) 提到:
首先,我对自己过于激动地态度表示抱歉,伤害到了一些网友,希望大家能原谅我。其
次,我的愤怒不是针对个人,而是针对这个bbs上长久以来那种幻想通过报警解决问
题的思路,我就很不幸的是这种缺德做法的受害者。当然不是同胞害的,是white
trash.
我讲以下报警之后会发生什么吧。
社工一般是突然上门,如果家里没人才会跟你预约。
上门以后会把每个人隔离开,分头问话,都是一些正常人听了会觉得非常offens
ive的问题:有没有吸毒史,有没有酗酒,有没有精神不正常,是不是在吃药,看到
孩子不乖有没有发疯的感觉,平时说话是不是大声吼叫,你的配偶有没有精神病,有没
有吸毒,有没有酗酒等等。
我被告的不是打孩子,而且我们家孩子都太小,也不怎么会说英语(那时候),所以免
掉孩子脱衣服检查和单独盘问的过程。
全问完之后会仔细察看你家,细到每一间屋,每一个角落,任何一个可能放东西的地方
,(呵呵,还有人说社工上门没... 阅读全帖 |
|
l******a 发帖数: 16364 | 16 ☆─────────────────────────────────────☆
RedLeaves (Red Leaves) 于 (Mon Oct 7 10:32:57 2013, 美东) 提到:
发信人: RedLeaves (Red Leaves), 信区: NextGeneration
标 题: 三岁半的男孩无理哭闹,求解
发信站: BBS 未名空间站 (Mon Oct 7 00:38:35 2013, 美东)
早晨醒来就开始哭,怎么哄也不行,一直哭。问他为什么哭,也不说。吃饭哭。玩得好
好的,也会突然哭。跟他说一句话,比如“XX,肉肉吃不吃?”他也会哭。晚上准备睡
觉,也会突然躺地上翻滚大哭。他要抓弟弟的脸,大人不让,又是哭。每天断断续续哭
几十回,加起来能有三四个钟头。大人们这脑袋里全是他的哭声在回荡。这种状况已经
持续个把月了。几个月前刚勉强训好知道上厕所,现在一哭就肆无忌惮的尿裤子上。
他以前就爱哭。现在是变本加厉了。以前还玩一玩,也跟人说说话的。现在也不怎么玩
了,就躺缩在地上,不怎么主动说话,也不回答大人的问话。做父母的都被他弄疯了。
见一次儿医抱怨一... 阅读全帖 |
|
W*******n 发帖数: 4140 | 17 Joke: Presidential Debate 2012, Act III
10/22/2012
By Limin Wang
In the evening of October 16, 2012, at the Smack Complex of Hofstra
University on Long Island, New York, President Obama and former governor
Romney had the second finger-to-finger presidential debate. Candy Growly
tried her hardest to moderate them.
Outside the debate building, large swarms of people had decided on their own
to join the show. Some said that they wanted to bring their own tough
questions. Some said that they wanted ... 阅读全帖 |
|
i*******8 发帖数: 7955 | 18 头盔的3D效果更好,但是看不见键盘,而且视角很大,所以最适合于看电影。3d
vision 2效果比上一代好多了,上一代戴上眼镜后屏幕巨暗,外加明显的crosstalk。2
代屏幕只是略暗,看不到crosstalk。眼镜设计的也很不错,很轻便,戴在近视眼镜外
面也不觉得难受。以前在sony店里试3D的时候眼镜很不舒服,耐着性子才看完demo。 |
|
W*******n 发帖数: 4140 | 19 Joke: Presidential Debate 2012, Act III
10/22/2012
By Limin Wang
In the evening of October 16, 2012, at the Smack Complex of Hofstra
University on Long Island, New York, President Obama and former governor
Romney had the second finger-to-finger presidential debate. Candy Growly
tried her hardest to moderate them.
Outside the debate building, large swarms of people had decided on their own
to join the show. Some said that they wanted to bring their own tough
questions. Some said that they wanted ... 阅读全帖 |
|
t****t 发帖数: 6806 | 20 家庭用确实没多大差别, 6a和5e的差别主要不在信号本身的衰减上, 而是在抗干扰能力
上(crosstalk/alien crosstalk). 家里没什么干扰, 性能体现不出来.
不过另一方面说, 5e的线质量参差不齐, 6a还是要好不少. |
|
w*******y 发帖数: 60932 | 21 Anybody looking for great 3DTV bundle, check on amazon. To get this price
you must see the final checkout price on the review page. For $1400 you get
47 3DTV, 3D bluray player, 4 pieces of 3D glasses!! + TIVO. You can easily
sell the bluray player and TIVO for $200 each if you already have PS3 which
is 3D capable. Also, you dont really need 4 3D glasses, I guess you can sell
the glasses for $80 each
Here's the link and just add the 47"TV + 4 glasses + bluray :
http://www.amazon.c om/gp/featur... 阅读全帖 |
|
p*****c 发帖数: 20445 | 22 Jun Lu PhD
Assistant Professor of Genetics
General Info
Bio
Research & Publications
Biographical Info
Education & Training
Ph.D.Boston University(2003)Postdoc AssociateBroad Institute or MIT and
Harvard, Cancer Program (2004 - 2008)
Research Summary
We are interested in using genomics to understand the role of non-coding
RNAs in mammalian development and disease. Currently, we are focusing on the
following topics. 1. Non-coding RNAs in blood stem cell differentiation and
malignancies 2. MicroRNA... 阅读全帖 |
|
l*******o 发帖数: 5673 | 23 发表在 Sino-Platonic Papers No. 27, August 1991
作者 David Moser, 密歇根大学中文研究中心的 Academic Director 文章发表的时候
不知道博士毕业没有
Chinese Studies Academic Director David MoserDavid Moser holds a Master’s
and a PhD in Chinese Studies from the University of Michigan, with a major
in Chinese linguistics and philosophy. His PhD dissertation Abstract
Thinking and Thought in Early Chinese and Classical Greek won the Rackham
Distinguished Dissertation Award in 1996. He has been a visiting scholar at
Beijing University and... 阅读全帖 |
|
d**e 发帖数: 2420 | 24 傅苹昨晚在PBS的访问文字版:
http://www.pbs.org/wnet/tavissmiley/interviews/entrepreneur-pin
TRANSCRIPT
Tavis: Starting a successful company is never easy, but it certainly must
have seemed impossible to Ping Fu. As a child growing up in China under Mao,
she was separated from her family and sent to a forced labor camp, where
she endured unspeakable hardship.
In 1984 she made her way to the U.S. with $80 in her pocket and just three
English words in her vocabulary: “Hello,” “Thank you,” and my favorite
– “He... 阅读全帖 |
|
H1 发帖数: 565 | 25 chinese crosstalk just plain pathetic |
|
y**********n 发帖数: 555 | 26 it comes from traditional crosstalk "Lun Peng Dou" |
|
|
c****x 发帖数: 6601 | 28 Published on Jun 13, 2016
Diamond and Silk talks about the Terrorist attack that happen on U.S. soil
in Orlando Florida, Hillary Clinton and the truth about what is really
historic about her being the nominee, the passing of Muhammad Ali and find
out who goes into this week bowl of stupid. |
|
j****i 发帖数: 68152 | 29 发信人: crosswalk (crosstalk), 信区: Automobile
标 题: 这样撞过的车怎么处理?
发信站: BBS 未名空间站 (Fri Dec 30 21:41:56 2016, 美东)
2007 Volkswagen Paasat, 不小心rear end别人的车了,是低速,front bumper脱落,
hood前面凹进去了。其他功能都没发现问题。
这辆车mileage很高, KBB上估价sell to private也只有$2800。随便找了个修车行估
价,报价$2000+修。
这种情况怎么处理?还能卖吗? |
|
x****6 发帖数: 4339 | 30 谢耳朵,别闹了。你这答非所问的,完全跟我的意思crosstalk
这里讨论的不是牛人是不是吃苦吃出来的,而是蔡美儿的虎马做派到底是如何在美帝出
名的?到底是因为她成功的育儿经验本身还是他是洋大人妻子+耶鲁教授这个身份? |
|
r****a 发帖数: 1212 | 31 其实也不算贵,算下来总共折扣1万美元了,5000迈很少啊,正好磨合得差不多了,有
害气体也排完了。
[在 crosswalk (crosstalk) 的大作中提到:]
:看起来真的买贵了,我们这儿就一家Volvo dealer, 最近一家在两小时外,当时一看
这辆车配置正好是我们要的,也没想到来车版问一问就买了。
:就当是2016花钱消灾了,唉。 |
|
H**********6 发帖数: 994 | 32 Let's learn Highly's self crosstalk and use it in presentation!
Lol |
|
H****y 发帖数: 2992 | 33 A: 这么久没见,出差了?
B: 我是去警局协助调查去了。
A: 查谁呀?
B: 查我自己。
A: 你给逮起来了!为啥事儿呀?
B: 还不就是给黑心的航空公司闹的。上次我回国讲学归来,你说我给了他们那么多钱
,才分我那么一把小椅子坐。
A: 家里宽敞,你怎么不在家里坐着?
B: 这飞机还没起飞,我就两腿发麻了。不行,我得到过道里溜达溜达。
A: 伸伸腿儿。
B: 走了会儿一看,咦,这儿有个座位不错!大皮椅子,手脚都能伸展得开。前面还有
窗户,视野开阔。
A: 你就坐那儿了?
B: 还说呢,没坐多久,就来了一个穿制服的男的,“先生对不起,我得准备起飞了。”
A: 你跑机长的座位上去啦!
B: 我是一边起身,一边叹气啊。你说这遥控飞机都发明那么久了,还搞个机长干啥呀?
A: 这飞机要是遥控的,你敢坐吗?
B: 从驾驶舱出来,我没走几步,又给我看到一个宽敞的好位置。
A: 你也不能想坐哪儿坐哪儿呀。
B: 没人坐我怎么不能坐?我正在这儿闭目养神呢,发现有人推我。
A: 人家来了呗。
B: 我说真没礼貌!没看我这儿休息吗?
A: 这是人家的位置呀!
B... 阅读全帖 |
|
H****y 发帖数: 2992 | 34 A:你知道孔老夫子在大学是什么专业的吗?
B:孔子还上过大学啊?
A:你这问的,不上大学能当上发考题?
B:我想应该是社科吧?
A:是土木工程和流体力学。
B:你怎么知道的?
A:孔子挖坑灌水水平高啊。
B:没听说过。那大学在哪里读的?
A:先在耶鲁大学曲阜分校读了本科,然后考入魏廉马丽学院读的研究生。
B:还以为他会去麻婶理工呢。
A:孔子聪明啊,博士一毕业就顺利当上发考题了。
B:那他研究的什么课题?
A:先是依靠土木工程的老本行,研制了一种新砖,既坚固耐用又成本低。
B:这砖在哪儿烧的?
A:自己lab就是干这个的。雇了一堆研究生和博后,日夜不停地烧。
B:名副其实的砖窑主啊!
A:也不都是烧砖的,有搞材料的,有设计外形的。还拍公益广告和商业广告的。
B:什么样的公益广告?
A:比如三只小猪盖房子。用草和木头盖的都塌了,只有我们砖的最结实。
B:孔子还挺会造势的。那商业广告谁来拍?
A:Lab Manager,也就是孔太太。
B:夫妻店。
A:人家是豪车旁边站个妙龄女郎。
B:他们呢?
A:砖堆上面坐一中年大娘。
B:接地气。
A:经济一好就马上加大产量,因为大家都要买房子了。
... 阅读全帖 |
|
H****y 发帖数: 2992 | 35 【 以下文字转载自 Joke 讨论区 】
发信人: Highly (高妹), 信区: Joke
标 题: 【相声】学术封神榜
发信站: BBS 未名空间站 (Mon May 16 23:11:52 2016, 美东)
A:现代人啊,退休都太早了。
B:六十五也不算早了吧?
A:你看人家姜子牙,找到工作的时候都七十多了,还能成就大业。
B:那他之前干嘛去了?
A:从省重点学堂出来后,状元没考中。一边给县令儿子当私家补习挣钱,复读一年,
还是不中。于是决定去昆仑山魔法学校学法术。
B:魔法学校,怎么去啊?
A:听人家说的,先来到城门口,找准一面墙。趁别人叫马车的时候,冲着那面墙冲过
去,你就进入仙界了。
B:这是封神榜啊还是哈利波特啊?
A:结果来到昆仑山后很失望,发现每天干来干去就是炼丹,种花,学数理。
B:那姜子牙在昆仑山待了多久?
A:二十年。
B:为啥这么久才毕业?
A:选错课题了呗!人家学数理的三年就毕业了,去给诸侯当推算运势的决策家,拿高
薪住大茅屋。种花的去了皇家园林,开发新品种兼写书。他炼丹的一开始倒是进展快,
也发了不少高因子论文,可到了Phase III的时候硬给FD... 阅读全帖 |
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H****y 发帖数: 2992 | 36 A:听说你找到薄厚职位了,哪间学校?
B:是个研究中心,叫洪兴社。
A:听着像道上的。
B:别说的那么难听,我们可是正规单位。
A:怎么个正规法?
B:进门自带一篇paper。都写好了,直接加新单位进去。
A:这叫投名状。
B:新生有orientation。和导师,师兄弟们一起烧香,拜关公。
A:嘴里还念叨点儿啥不?
B:有奖同享,有罚同当。仪器公用,数据互赠。同是天涯沦落人,你跑胶来我撰文。
不求同年同月同日生,但求同期同卷同刊登。
A:什么乱七八糟的。那你们都做些什么课题?
B:全是high impact,high risk的项目,比如drug delivery。
A:怎么个deliver法?
B:天一黑我就和大师兄山鸡一起,外出和human subjects会面。
A:去哪儿会面?
B:比如高架桥下面啦,公园角落啦那些地方。
A:都是陌生人?
B:那怎么成?得熟人介绍的才信得过。先把剂量谈好了,然后环顾四周无人,就把一
小袋儿粉末快速塞给对方。
A:这就deliver了。你怎么和他们follow up 呢?
B:还用我去找他们吗?过一两个月他们得主动来找我。
A:都上瘾了呗。不知... 阅读全帖 |
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H****y 发帖数: 2992 | 37
A:今天有幸能采访到大名鼎鼎的克朗兄,真是兴奋!
B:不敢当。看来我是做了轮船,臭名远洋了。
A:请问克朗兄祖上也是搞实业的吗?
B:那倒没有,起先我们一直住在镇长家里。镇长一家人口味清淡,营养充足,大家都
很愉快。谁知后来娶了个四川媳妇。
A:那又咋了?
B:我们不是吃不惯辣嘛。
A:嗨。那后来搬去谁家了?
B:哪家也没去。我想咱们克朗家族常年依靠人畜来提供饮食,多被动啊。就决定自己
办实业。
A:都经营过啥?
B:先是承包了镇上的七个公共厕所。
A:那不是旱涝保收?
B:做生意哪那么容易啊!之后家家盖起小洋楼,就没人来了。
A:那你们怎么办?
B:我们灵机一动,把厕所改建在镇中心最好的地段。全是落地大玻璃窗,视野开阔。
A:这合适吗?
B:完了进行现代化装修。都是新式马桶,还安装了免费Wifi。
A:这下有人来了吧?
B:来是来了,可老是赖着不走。一到考试前都是来复习的学生。
A:成了星巴达克了。
B:左思右想,决定走高档路线,办会员卡。
A:上个厕所还要办卡?
B:你想办,还不一定办得了呢!光有钱都不行,我们这... 阅读全帖 |
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e*******o 发帖数: 1287 | 38 wow!!!! It's a lot of information!!! No wonder the ex is hard to digest!
在 crosswalk (crosstalk) 的大作中提到: 】 |
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f*******e 发帖数: 8974 | 39 嗯,这是琴谱的数据,我那套东西的数据晚上找找
Input Power
110V-240V AVAILABLE
Output Tube
16.5W×2 (8Ω RMS)
Vacuum Tube
6N3 x2
Harmonic Distortion
< 2%
Crosstalk Attenuation
>50dB
Frequency
20Hz-50kHz
Signal/Noise Ratio
>80dB (A weight)
Overloading Level
>20V
Input Impedance
10KΩ
Input sensitivity
450mV
Load Impedance
8ohms
Audio Output
2 groups speaker out, 1 x 3.5 mini jack out (Line/Phone)
Audio Input
1 x RCA, 1 x Aux, 1 x MP3/I-pod |
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z*****n 发帖数: 7639 | 40 多路模拟信号之间肯定有不可消除的crosstalk。 |
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D**********s 发帖数: 3139 | 41 具体一点,主要还是输入阻抗匹配问题,放大倍数,变压器谐波失真,crosstalk和信
噪比的区别 |
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D**********s 发帖数: 3139 | 42 同轴线的特征电阻不是传统欧姆定律定义的电阻,是用单位长度电容和电感来表征RF信
号传输的。。。常见的50欧,75欧,93欧,110欧也是和长度没有关系的特征值,用来
区别不同线材所适用的RF信号的功率,传输距离和频率。不同信号间的特征电阻不一样
,标准也不一样,比如常用的AES/EBU,S/PDIF等等。
同轴线的线芯电阻还是非常小的,可以用做音箱线。注意只用线芯,这样你既有double
shield,又能避免同时用线芯和包线时候的crosstalk。不过一般同轴线为了保证特征
电容和位置的不相关性,线芯用一根实心或者空心的cylinder铜线,线体比较硬,可能
也并不能很高效地传导全频率范围的音频信号。
有一篇文章可以读一读:
http://www.tnt-audio.com/clinica/spkcbl_e.html |
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D**********s 发帖数: 3139 | 43 不敏感,只能是用u值比较小的电子管,这样电压放大才不会加入过多的胆味。
单从用管上,EF2用6J1,crosstalk会少一些,胆味也会浓一些。 |
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D**********s 发帖数: 3139 | 44 真正工作状态只能被甩开更多。功率余量倒是够了,crosstalk,信噪比和电源部分都
有妥协啊。
B&K应该还有更好的产品。 |
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D**********s 发帖数: 3139 | 45 100左右的耳房只要是好钢用在刀刃上的真东西,比高端或者LZ所谓没人买的“高端”
,推耳机都要出色,如果声音不好,只能说前端不行。卡座和老音源动态超过95db都很
难而且也不需要,变压器都没有headamp抽头,整流电容分到耳放电路还省下多少。
crosstalk,snr都被“LZ40元高端”的line amp限制住了,耳放作为一个独立的电器应
该是遇强则强,而不是像40块钱的卡座插什么好音源都是垃圾声。集成的贴片运放,中
古日本洋垃圾都一水的jrc,根本就谈不上耳放电路,简单的gain都没有,只有一个晶
体管扩流功能,那个无知的NB LZ还说推得动1000欧姆的耳机。。。是呀,没有1000ohm
分压,耳机也得响得了啊。点到为止了,省的给他指引明路。
像LZ这样一点都不懂还自作聪明的,买来那么老的垃圾,电解电容早就该换了,光线路
的去氧化和维修就十倍于收垃圾的费用,还自诩为“高端”,看不起100块钱的耳放,
还造谣说比很多耳放都强,大家的愿景只能是让他沉浸在那片变阻运放的“高端”里了。 |
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y***1 发帖数: 125 | 46 废话几句:信息缺失和排版问题 最新版本 可以直接参看原帖:
http://www.douban.com/group/topic/44946214/
吐槽: 怎么看也不像是豆瓣的文章
------------------------------------------------------------------------
Proaudiophile,即Professional Audio + Audiophile,发烧一十八法门之专业设备法,
虽威力逊于声学重镇英国ISVR暨德国Fraunhofer脑皮质DSP植入,法属美国贝尔实验室听
音观量子重塑,以及丹麦科技大学联合Brüel&Kjær金耳膜修复,但仍以其经济性和
突出表现受天朝有识之士欢迎
USB专业音频设备逐渐在发烧圈走红 三界暗潮涌动
先有Bricasti, Prism Sound, Lynx 界面风靡
看着好假的Benchmark和不怀好意的Antelope凑热闹
名字霸气的Dangerous Music, Crane Song, Solid State Logic继续高贵冷艳着
还有承接各类神奇磨机业务的化... 阅读全帖 |
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y***1 发帖数: 125 | 47 温馨提示:本文适合追求高性价比,不愿为玄学所惑的折腾党;注意专业音频设备的操作
对耐心和悟性有一定要求。请谨慎阅读本文,若有头晕眼花等症状属正常现象。本文更
新非及时,可参考文末的原帖链接。
------------------------------------------------------------------------
USB专业音频设备逐渐在发烧圈走红 三界暗潮涌动
先有Bricasti, Prism Sound, Lynx 界面风靡
看着好假的Benchmark和不怀好意的Antelope凑热闹(你看看人家Brainstorm多老实)
名字霸气的Dangerous Music,Crane Song,Solid State Logic继续高贵冷艳着
还有承接各类神奇磨机业务的Black Lion(e.g. 花$400给本价$250的ada8k上十全大补
丸),不过这点比起人家低调奢华的Goldmund、MBL之流还是太嫩
各路专业厂商亦各显神通,开始疯狂爆兵:
******************************************************... 阅读全帖 |
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D**********s 发帖数: 3139 | 48 以前老的随身听为了省个继电器或者一两个运放之类的,也牺牲了crosstalk和耳放口
最佳的动态,便携嘛就没必要太苛求。 |
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D**********s 发帖数: 3139 | 49 以前老的随身听为了省个继电器或者一两个运放之类的,也牺牲了crosstalk和耳放口
最佳的动态,便携嘛就没必要太苛求。 |
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h***g 发帖数: 337 | 50 ☆─────────────────────────────────────☆
eeer (tier) 于 (Thu Jan 25 00:13:41 2007) 提到:
TI给的CMOS器件Test Stuff位置
Micron应该是做memory
哪一个更有名?
EE的Master在读,两个公司都是chip stuff方向的
☆─────────────────────────────────────☆
crosswalk (crosstalk) 于 (Thu Jan 25 00:33:32 2007) 提到:
问你老板吧,他最有发言权。 其实intern最重要的是学到些什么,具体的project更重
要。
☆─────────────────────────────────────☆
foreverbravo (Bravo) 于 (Thu Jan 25 09:40:24 2007) 提到:
TI is better, except there will be a layoff.
☆─────────────────────────────────── |
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