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Analytical chemist position in Bay area (south Bay)

Analytical chemist position in Bay area (south Bay)# Chemistry - 化学

p*t2010-08-28 07:08

1 楼

现在的蓝牙3.0耳机
比如这个森海的
Sennheiser PX210BT Bluetooth Wireless Collapsible Headphones
或者这个索尼的
http://www.buydig.com/shop/product.aspx?sku=SNDRBTN200BLK
理论上应该是数据传输到耳机，耳机自带DAC解码，然后驱动吧
所以音质因该取决于DAC素质和单元driver的素质，应该不算太差
我有那个索尼的，买了有一年了，有点夹头，不是 around ear，压在耳朵上时间长有
点闷，估计是所有皮/革面耳机的通病，作为一个无线的玩意儿素质还挺好的。
订了一个森海around ear 的还没到，但布的应该是比革的透气，舒适度好些

t*y2010-08-28 07:08

2 楼

国内的大数据产业属于朝阳产业啊

s*12010-08-28 07:08

3 楼

自从推弦基本上掌握发力点了之后，就如同打通经脉了一样...各种爽
不过现在除了爬格子，也就只会几段好听的solo，每天翻来覆去爽...
老男孩中间那一段特别“呜咽”的solo(版上谁好像用过这个精准的形容词...)
真的爱你开头那段
小薇开头那段
自由中间五声音阶那段...
加州旅馆那段经典solo练了2/3了，到harmonic chord那里卡住了..(前面弹得也不精，
有杂音...觉得有点超出能力范围了...)
大牛们推荐几首/几段好听给力的solo给初学者爽一把的嘛~?
谢啦~

a*y2010-08-28 07:08

4 楼

Google IO今天宣布的东西基本上没有一样不是和Apple有直接竞争关系。
Daring Fireball:
Updated mobile OS, an updated mobile web browser they claim to be the
industry’s fastest, new richer mobile ads, on board with Adobe’s
definition of the “full web” including Flash, and an upcoming home
entertainment TV platform. I don’t think there’s a single thing Google
talked about today that isn’t directly competitive with Apple.

k*k2010-08-28 07:08

5 楼

Analytical chemist position in Bay area (south Bay)
A startup company has an opening for Analytical Chemist. Candidates must be
local.
Requirements: skills and experience in developing and performing analytica
methods in research and early development environment. He or She Must have
solid understanding in HPLC method development. He or she Must be able to
optimize methods utilizing multiple techniques for Raw Materials and
Finished Products. Experience in design and implement stability studies

p*t2010-08-28 07:08

6 楼

图

c*i2010-08-28 07:08

7 楼

国内数据分析市场还不成熟。

【在 t****y 的大作中提到】

: 国内的大数据产业属于朝阳产业啊

A*a2010-08-28 07:08

8 楼

Smoke on the water
Wonderful tonight
Like a rock
不知道是不是你要的

【在 s*********1 的大作中提到】

: 自从推弦基本上掌握发力点了之后，就如同打通经脉了一样...各种爽
: 不过现在除了爬格子，也就只会几段好听的solo，每天翻来覆去爽...
: 老男孩中间那一段特别“呜咽”的solo(版上谁好像用过这个精准的形容词...)
: 真的爱你开头那段
: 小薇开头那段
: 自由中间五声音阶那段...
: 加州旅馆那段经典solo练了2/3了，到harmonic chord那里卡住了..(前面弹得也不精，
: 有杂音...觉得有点超出能力范围了...)
: 大牛们推荐几首/几段好听给力的solo给初学者爽一把的嘛~?
: 谢啦~

s*h2010-08-28 07:08

9 楼

NO. thank you...

be
and
write

【在 k****k 的大作中提到】

: Analytical chemist position in Bay area (south Bay)
: A startup company has an opening for Analytical Chemist. Candidates must be
: local.
: Requirements: skills and experience in developing and performing analytica
: methods in research and early development environment. He or She Must have
: solid understanding in HPLC method development. He or she Must be able to
: optimize methods utilizing multiple techniques for Raw Materials and
: Finished Products. Experience in design and implement stability studies

p*t2010-08-28 07:08

10 楼

到底是不是内置DAC啊

t*y2010-08-28 07:08

11 楼

已经有很多公司开始做了，再过两年这个行业会加速

【在 c****i 的大作中提到】

: 国内数据分析市场还不成熟。

U*e2010-08-28 07:08

12 楼

Sweet child O'mine. hehe.

【在 s*********1 的大作中提到】

k*k2010-08-28 07:08

13 楼

Ding

d*w2010-08-28 07:08

14 楼

bluetooth audio transmission is lossy compression (there are new lossless
protocols, but I don't think anyone is using them now.)
there must be a DAC on the headphone side, but i doubt it's very high
quality because of the cost and operating voltage.

【在 p**********t 的大作中提到】

: 现在的蓝牙3.0耳机
: 比如这个森海的
: Sennheiser PX210BT Bluetooth Wireless Collapsible Headphones
: 或者这个索尼的
: http://www.buydig.com/shop/product.aspx?sku=SNDRBTN200BLK
: 理论上应该是数据传输到耳机，耳机自带DAC解码，然后驱动吧
: 所以音质因该取决于DAC素质和单元driver的素质，应该不算太差
: 我有那个索尼的，买了有一年了，有点夹头，不是 around ear，压在耳朵上时间长有
: 点闷，估计是所有皮/革面耳机的通病，作为一个无线的玩意儿素质还挺好的。
: 订了一个森海around ear 的还没到，但布的应该是比革的透气，舒适度好些

t*y2010-08-28 07:08

15 楼

l*g2010-08-28 07:08

16 楼

我觉得你就把你说的那几个先奔了。再推荐。

p*t2010-08-28 07:08

17 楼

也就是说，声音传之前压缩了？然后到蓝牙耳机再解压？
类似说320KBPS mp3 是降到120k传的？

【在 d*w 的大作中提到】

: bluetooth audio transmission is lossy compression (there are new lossless
: protocols, but I don't think anyone is using them now.)
: there must be a DAC on the headphone side, but i doubt it's very high
: quality because of the cost and operating voltage.

i*m2010-08-28 07:08

18 楼

有兴趣
怎么个操作法呢?

y*x2010-08-28 07:08

19 楼

+1

【在 U*****e 的大作中提到】

: Sweet child O'mine. hehe.

d*w2010-08-28 07:08

20 楼

i think, i cannot guarantee it's correct, if you have a 320kpbs MP3 file, it
's decoded to PCM on the host first, then compressed to 120k - 192k using a
codec specified by bluetooth audio and transmitted to the receiver/
headphones.

【在 p**********t 的大作中提到】

: 也就是说，声音传之前压缩了？然后到蓝牙耳机再解压？
: 类似说320KBPS mp3 是降到120k传的？

z*j2010-08-28 07:08

21 楼

有兴趣
怎么个操作法呢?

P*h2010-08-28 07:08

22 楼

maybe try layla, the solo sounds great and quite a few bend, hammer on, pull
offs over there for you to practice on. also, you don't have to stretch
your left hand that much as in hotel California.

p*t2010-08-28 07:08

23 楼

那也不算太差

t*y2010-08-28 07:08

24 楼

大家有兴趣站内发信息，顺便介绍下自己背景背景合适才考虑深谈谢谢

a*y2010-08-28 07:08

25 楼

Herman Kardon的BT支持AAC和AptX傳輸格式
雖然效果還是比接線差一點（這個支持BT和接線），但是已經很不錯了
價格refurb只要$90+，而且佩戴很舒服。

【在 d*w 的大作中提到】

d*w2010-08-28 07:08

26 楼

here comes the expert. questions:
any bluetooth headphones supporting AptX-lossless at this time? if yes, do
current popular hosts (iPhones, iPads, Android phones etc.) support it too?

【在 a***y 的大作中提到】

: Herman Kardon的BT支持AAC和AptX傳輸格式
: 雖然效果還是比接線差一點（這個支持BT和接線），但是已經很不錯了
: 價格refurb只要$90+，而且佩戴很舒服。

a*y2010-08-28 07:08

27 楼

not all Android support AptX, you have to check one by one. It requires
specific BT chips. Most Samsung does.
iPhone/iPad currently only support AAC. Mac computers do support AptX. It is
possible iOS 8 will bring AptX support.
BT headphone supporting AptX.. I only know HK BT. There may be others but
not many. You can check AptX's website they list compatible devices.
BTW, I am not an expert... I just happen to have searched for such devices
recently.

【在 d*w 的大作中提到】

: here comes the expert. questions:
: any bluetooth headphones supporting AptX-lossless at this time? if yes, do
: current popular hosts (iPhones, iPads, Android phones etc.) support it too?

d*w2010-08-28 07:08

28 楼

Thanks. I do use a pair of Bluetooth headphones (Jabra Revo Wireless, too
bass heavy) when walking around the room.

is

【在 a***y 的大作中提到】

: not all Android support AptX, you have to check one by one. It requires
: specific BT chips. Most Samsung does.
: iPhone/iPad currently only support AAC. Mac computers do support AptX. It is
: possible iOS 8 will bring AptX support.
: BT headphone supporting AptX.. I only know HK BT. There may be others but
: not many. You can check AptX's website they list compatible devices.
: BTW, I am not an expert... I just happen to have searched for such devices
: recently.