標題: [My] eeepc 最終用法 - HIFI eeepc - sharing with you! [打印本頁]

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作者: ChaCha7    時間: 2008-8-29 00:16     標題: [My] eeepc 最終用法 - HIFI eeepc - sharing with you!

I finally connected the eeepc to my hifi la!!!

That's why I bought eeepc 901. I discussed with some members that I was going to connect the eeepc to traditional HiFi to give good sound. And many doubted pc music can be good. There have been a lot of discussions among the hifi fans / music lovers about the potential of pc music, which is too complicated to be discussed here (not to mention I am just learning). But one thing for sure: traditional cd players have one problem - mechanical interference / vibration. During picking up digital signal, there're actually some errors. These errors may be pure data error (wrong signal picked up), but some errors are related to the 'timing' of music. CD players are in some sense slike Tape recorder, but are more sophisicated ones. They both face the same issue: whether the music data can be picked up and transmitted with accurate 'timing'. If a tape is old or the rollers in cassette players are old, we can hear 'distortion' since the 'music data' are not transmitted in the correct 'time'. CD players also have this problem (due to mechanical vibration), but to a much lesser extent - yet still noticeable!

Someone says, music is all about timing ... (remember karaoke where most of us sing the songs with the wrong rhythm?)

The eeepc (SSD version) is good in the sense it has no mechanical vibration, so timing error of music data is reduced to minimal. I have been waiting the release of 901 for long since it uses ATOM which consumes much less power and emits less EMI. Traditional PCs could be bad sound as two key factors are that the power-hungry CPU and Large Power supply emit strong electrical interference that affect music performance. For a PC to be great on music, one has to invest rather a lot to build up a silent PC. It's almost impossible in the past, but it can be done now, but tend to be rather expensive and troublesome (but its performance can be very good!)

A further factor is that I use foobar2000 to upload the songs onto the RAM first. If the song is 6MB (mp3) or WAVE (more than 100MB, for example), the entire song will be uploaded to the RAM before playing. When playing the song, the data is directly read from the RAM. In this sense, the vibration-free RAM is the CD Player!

Of course the above things are some of the factors that enhance music playing. But these are great improvements in the world of PC music. I bypass the internal soundcard and so electrical interference is further reduced. Music data are transmitted to the DAC (digital to analogue converter, the BLACK one with 'red digits') and then to traditional hifi.

There is a picture below which shows how I organise my music into different folders. Each folder represents a particular kind of music I listen most, and in each folder you can further classify them into different albums - or any categorisation you like. They are stored in a 320GB 2.5" harddisk. Assuming I use FLAC to store one CD (450MB), then 320GB can store 728 CDs. Basically it's a personal digitalised music library. Imagine the difference between size of 728 CDs and this 2.5" Harddisk! Additionally, all music files can be located and played with a little bit of browsing!

Tonight I am enjoying great music. Just to share my joy and one more usage of eeepc. I love this forum very much since many people have helped me to solve some very difficult pc problems and finally made this set up. Thank you all!

[ 本帖最後由 ChaCha7 於 2008-8-29 17:01 編輯 ]

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作者: amanda_lam    時間: 2008-8-29 00:23

Well done!! Although I'm not quite sure if I can digest what you're trying to say, it seems to me that you've done a lot of researches before you can accomplish this. I hope the same spirit can inspire other forum members here!!

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作者: ChaCha7    時間: 2008-8-29 00:30


I am typing fast since I am too excited ... so forgive me my explanation is not good enough I try to explain as plain as possible ...
Yes, I have been reading stuff about this for months ...
And thanks Amanda, you have helped me a lot!

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作者: 33life    時間: 2008-8-29 00:44

哇, 你地真係 eee達人

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作者: t01257    時間: 2008-8-29 00:51

勁!!
有度唔明!  eeepc 點樣將 digital signal 入落部 dac? 用 usb interface 過嗎?

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作者: amanda_lam    時間: 2008-8-29 00:56


係呀～ 好似有個 USB o既 DAC?

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作者: ChaCha7    時間: 2008-8-29 00:59



Yes ar! There are some 'purists' who insist that one must use PROFESSIONAL SOUNDCARD and uses traditional HIFI type of connection (different ones like coaxial - they are different standards providing the same purpose - digital signal transfer). But I opted for the easier method - USB. There are some very COOL USB DAC out there. I can't afford expensive ones, and I am using cheap cheap China-made DAC (only 880! the cheapest thing in my system!). Some high-end ones are over $10000. But I am satisfied now and may upgrade later la. Look at the picture and this website: http://www.devilsound.com/DAC/
So cool!

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作者: ChaCha7    時間: 2008-8-29 01:03



This one is even cheaper! But it does not have traditional 'RCA' output (those 'red' and 'white' Jacket leh???) and you have to use the headphone jack -RCA converter to connect your pc/eeepc to 'active speakers' (which has internal amplifiers).

http://vocativeaudio.com/liloiii.html

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作者: POKeDOLL    時間: 2008-8-29 01:04

buy a dac1 / corda symphony

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作者: ChaCha7    時間: 2008-8-29 01:08


You must be high-end users la! I thought of buying this grade ga but I better start with sth simple first China-made DACs are not as bad as one imagine ...
Later la! Later I'll upgrade the system (speaker first, and then DAC ...). Now I have to relax a bit and enjoy music sin ... (not to mention there're still a lot of tweaks to be done in the xp for audio playing )

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作者: t01257    時間: 2008-8-29 01:15

嘩....厲害....

玩音響真係 high class 野...一條線最平都 880...

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作者: ChaCha7    時間: 2008-8-29 01:21



880 is not the cables ar ... the cheap DAC ar ... but my cables are 300 sth! So stupid ...

I am just a cheap music lover more than hifi feverman ...

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作者: WHO    時間: 2008-8-29 04:20

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作者: Dijeridu    時間: 2008-8-29 06:19

i have a cheap cheap cheap usb dac($2xx) and i am happy with it.
only in hifi field, cost =/= enjoyment.

[ 本帖最後由 Dijeridu 於 2008-8-29 06:28 編輯 ]

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作者: WHO    時間: 2008-8-29 11:49

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作者: tere    時間: 2008-8-29 11:52

我都用緊eeepc connect部舊 Sony MD HiFi
跟機M-Crew software, 可以直接用電腦控制部 hi fi
copy CD to MD,入MD歌名,較大細聲,預錄Radio..
又可以用 USB 直插出聲當外置 Sound Speaker

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作者: ethenef    時間: 2008-8-29 13:05

c hing 好犀利！

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作者: ChaCha7    時間: 2008-8-29 13:47


Interesting oh! Never know SOny has such a product!!! How do you connect eeepc to 'control' the Net MD? USB? It's not a very 'OLD' product anyway ...

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作者: tere    時間: 2008-8-29 15:58


用 USB connect 架, 插左落去eeepc, 佢會話 detect 到usb sound device..
部野係2003年出, 之前用$500買到部2手
雖然現在唔興MD,但MD始終係最好聲,特別係錄音, 我仲用緊Sony HiMD NH1
不過無樓主咁高級啦

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作者: ChaCha7    時間: 2008-8-29 16:12



No la I enjoy mini hifi ga. 2003 has USB net MD! It should be rather expensive .... it's good to buy it only at 500!!!

I also use MD to connect to the optical of my desktop. The MD is set to recording (but not actually recording), then it becomes a DAC  for connecting to active speakers The sound greatly improved! You see how cheap I am la!

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作者: WHO    時間: 2008-8-29 17:55

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作者: ChaCha7    時間: 2008-8-29 18:19



I am using Sharp 721 too!
1. I think you can try mp3 first. There should be  improvements already if you are using traditional jacket and onboard soundcard.
If you insist, use the software called EAC (EXACT AUDIO COPY) to copy CD bit-perfect from CD to WAVE format first. No need to try FLAC at the moment

I think it may be good to have the test as simple as possible. Use existing mp3 first - but make sure the mp3s are above 256Kb at least. Otherwise the sources are too POOR. 320Kb is the best.

What speakers you're using???

2. Regarding optical cables, I think ordinary ones will do (just for testing ma). I haven't checked for price for a long time. But there're some selling at Yahoo (ranging from $ 45 to 100):
http://hk.f2.page.auctions.yahoo.com/hk/auction/b8612622
And I often go here for shopping stuff like this:
http://www.weclonline.com/tchi/index.asp
It's in SSP anyway.

Or you can just buy it from an ordinary AV shop.

I have a spare one, I can lend to you. Of course you may save the trouble and buy it directly . But where do you live?

3. No special programme is needed for output optical, since you will be using the soundcard. The better thing about using optical than 'green jacket' is the DAC part is done externally.

4. Foobar2000 is free. It can't do 1 or 3.

Good luck!

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作者: ChaCha7    時間: 2008-8-29 18:21

What is that green icon in my post. Is it being moved to somewhere else???

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作者: amanda_lam    時間: 2008-8-29 18:22


No no no... your post is being added as 精華!!
Congratulations!!

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作者: ChaCha7    時間: 2008-8-29 18:26



I thought it's an arrow signaling it's being moved away .. should I write a Chinese version? I dunno Chinese typing, though wanna learn after September (less busy) ...

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作者: amanda_lam    時間: 2008-8-29 18:32


Don't worry... I'm sure our discussions in English would at the same time improve our English ne!!

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作者: Dijeridu    時間: 2008-8-29 18:53



it is a soundrxgxr ua dac, i got it at the 16th floor shop at mk.
it costed me 2xx a year ago. i hook it up with a pair of earphones.
i see u will have no problem to ge a pic of this dac from the web.
best.

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作者: ChaCha7    時間: 2008-8-29 19:11



Pic! Pic!

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作者: WHO    時間: 2008-8-29 19:17

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作者: WHO    時間: 2008-8-29 19:19

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作者: ChaCha7    時間: 2008-8-29 19:29


Give me your email in pm, i'll send you a simple guide for EAC!
方口對 circle is the one you need. 方口 is for the soundcard, and circle is for the MD

Are you using on-board soundcard? I am actually using shit active speakers but the improvement is noticeable! (of course it won't be very very good but it show promises!)

I need to go out for dinner in 10 mins so if you need that EAC document pm me first!

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作者: ChaCha7    時間: 2008-8-29 19:30


Umean u dun use speakers but only use "entry-level sennheiser earphone"?
Anyway, i think there would be improvements ga...

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作者: Dijeridu    時間: 2008-8-29 19:42

chacha and who,

check out this link please :
lots of good pics

http://www.mobile01.com/topicdetail.php?f=180&t=470503

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作者: WHO    時間: 2008-8-29 19:52

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作者: imagine    時間: 2008-8-29 20:06



我駁電腦用下圖中是頂那台玩具，講得出的功能機本都有，不過而家要買就自己係大陸搞掂
有改進的solo耳擴、獨立DAC、USB輸入、同軸輸入、RCA out、RCA in
ezone曾介紹過，我自己改機版本(我個blog有寫)聲音令不少人跌眼鏡
我最多等多一個月就買901setup套在睡房，希望9月底前會有新機



[ 本帖最後由 imagine 於 2008-8-29 20:10 編輯 ]

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作者: WHO    時間: 2008-8-29 20:07

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作者: ChaCha7    時間: 2008-8-29 21:34



If your pc is on, the Optical out should have 'red light', which is visible in the dark. If so, you can directly plug in the optical link. If NOT (sorry i can't see clearly what's inside ), there must be sth covering it to protect it from dust. Remove it and plug in the SQUARE jacket!

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作者: ChaCha7    時間: 2008-8-29 21:36


Supplement: I think that is from the onboard soundcard, cos if you have soundcard you will use other more professional 'holes' / jackets on the other sides

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作者: ChaCha7    時間: 2008-8-29 21:38


SOundrigor! Yes, I know it's good for its price! It is highly recommended by a local headphone shop ga ma Seems have a lot of good comments from users.

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作者: ChaCha7    時間: 2008-8-29 21:41



It's HIFIDIY's USB DAC !!
You know how to MOD gears ma??? I envy u so much!
This one should be good. I think you can buy it from Taobao rather safely. I should have bought it when RMB was not so high before

I think this one has very high potential as well if one knows how to modify it ... but I dunno how and no one I know will do it for me. The worst thing, if any, is that it doesn't have a switch! But that is 'picking bones from eggs', isn't it.

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作者: WHO    時間: 2008-8-29 21:43

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作者: WHO    時間: 2008-8-29 21:47

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作者: ChaCha7    時間: 2008-8-29 21:58



Well, what a good question! I am not sure if I understand correctly. Anyone please correct me if I am wrong ...

The soundcard CAN do digital-to-analogue conversion. If you plug any thing (active speakers for example) into your traditional green jacket, you're USING this function.

But the soundcard can also just send the digital signal out without doing the conversion. In doing so, it just 'collect' the audio data from xp system, applications and so on and process it and may even do some 'tweaks' and output to the optical link directly.

Take this as an example: (1)you're playing music through Media player classic AND playing MSN, and (2) you then work on the system, which from time to time have system sounds (like beeps). If you do not disable the system sound or other channels, all the sounds will be processed by the soundcard 'in one go' and send it to the optical link. So when you connect your MD walkman to the optical link of your soundcard, you get pure digital signals, which are in turn composed of all the digitals siganls being processed by all your applications and even xp system.

DUnno what I am saying Do you know???

[ 本帖最後由 ChaCha7 於 2008-8-29 21:59 編輯 ]

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作者: imagine    時間: 2008-8-29 22:13



圖中那台機就是我的，我個blog(查看我的資料就有)的DAC版有寫如何mod，我也在亦軒那邊出過post
我覺得它好值得玩，可玩性甚高(因為機箱空間相對其它機大，但也可說是缺點)
買了的用家千萬別離棄它！當然它是走HIFI路向，所以5.1,DTS無它份

無開關....的確是最大敗筆！不過他們說旦因為會出外接升級電源才不加上.....

[ 本帖最後由 imagine 於 2008-8-29 22:14 編輯 ]

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作者: ChaCha7    時間: 2008-8-29 22:18



Do you help MODDING with charge ??? (of course I know it will be WORK and WORK). I actually wanted to buy it first I also wanted to buy the other set of PCM1793 thing ... do you know anyone will help assemble kits?

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作者: WHO    時間: 2008-8-29 22:19

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作者: ChaCha7    時間: 2008-8-29 22:25



Read your blog, you're the HIGH HAND HERE!!!!! I'm .... small potatoes

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作者: ChaCha7    時間: 2008-8-29 22:31



WHO hing, are you talking about 亦軒耳機音樂世界  ??? I dunno if other shops sell it.
But you have a MD, try try your MD first. Your desktop may be too noisy to play good sound (even though there are great improvements after connecting the MD or USB DAC). This is my case. My 805D+ MSI motherboard + PSU combo was too noisy to give hifi quality sound, especially desktop system tend to be loaded with a lot of programmes which will interfere music performance. I suggested using MD for the desktop since you have it already, and there will still be some improvement (but there is limit to this improvement!).

But it's worth trying the soundrigor thing for your eeepc and headphone. You will definitely see SUBSTANTIAL difference between using the jacket provided by eeepc and using USB DAC. If not, I'll buy your USB DAC

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作者: imagine    時間: 2008-8-29 22:49



我無幫人裝機或mod機，一來自己完全無時間...
就算有時間，我都會不段測試、較聲，然後寫出來分享
測試較聲所需時間是非常非常漫長的....
雖然知道香港人 最緊要快和方便
但教會大家去做去mod比起幫人直接改會更，更多人受惠
如果你有朋友會焊接、解拆技巧，建議找他們幫忙，一起玩玩

小弟只算是一個裝配工，不大會電路方面知識，也是small potato呢！

我自己本來係打算901加usb dac加個amp仔在睡房用
但而家打算等到9月30，看看有無新機出，無都要買，因為要準備一台機出國用
見你用eeepc駁hifi忍不住要回應一下

[ 本帖最後由 imagine 於 2008-8-29 23:41 編輯 ]

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作者: ChaCha7    時間: 2008-8-29 22:57



雖然知道香港人 最緊要快和方便 ... dun say this way la We all have limitations ma. It took me years to learn how to manipulate pc (5 years ago, I got fed up by getting viruses and the blue screens of xp so I started to learn pc myself now I know how to assemble desktop myself la) ... I just haven't the time (now) to learn MODDING though I know Hifi fever have courses .. maybe later. But life is too short to learn so many things at the same time

As you said "我無幫人裝機或mod機，一來自己完全無時間..." I perfectly understand ga. I asked since I respect the design and SPIRIT of hifi diy very very much. I want to play their products but really dunno how to make them myself, which is a pity. Yet, your efforts and theirs are SUPERB!

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作者: salesman    時間: 2008-8-29 23:26

睇怕最cheap都係我呢套HiFi...
http://www.yamaha.co.jp/product/av/topics/nx-u10/index.html

[ 本帖最後由 salesman 於 2008-8-30 10:54 編輯 ]

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作者: ChaCha7    時間: 2008-8-29 23:33


What is it? Seems very convenient? Model no??? I'm interested in gadgets ...

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作者: WHO    時間: 2008-8-29 23:36

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作者: WHO    時間: 2008-8-29 23:40

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作者: imagine    時間: 2008-8-29 23:46

DIY、聽歌等
不在於貴與否，最緊要自己玩得開心、聽得開心。
我自己平貴都會聽，東西能對得起它的價錢就已經足夠了

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作者: would    時間: 2008-8-29 23:47

牛人
你真是很強！

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作者: imagine    時間: 2008-8-29 23:47

對於電腦聽歌，我認為 電源質量 相對是最重要

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作者: ChaCha7    時間: 2008-8-29 23:56



Yes, the pc is composed of different channels which enables different applications (including the system - system sound remember?) to produce and send sound to the soundcard. When you click the master volume control, there're many 'channels' - mic (pink), wave, SW synth, Front Green in (you can do recording there), and so on. The master volume represents the total volume got from signals produced in different channels. Different applications can use different channels. So the sound produced by the pc is composed of different channels used by different applications! We now even have 7.1 channels ....

So pc is not designed for producing traditional 2.0 stereo system ga Theoretically, we want t o switch off all the other channels when we use pc to produce music since it will stop other applications (the most annoying maybe system sound) using other channels to 'pollute' the music. Ideally, we don't even need those channels if one ONLY use the pc to produce music only (that's what the document I sent you is about - reducing or erasing influences from other channels).

I haven't tried iriver mp3 but I am sure it's one of the best brands in making portable audio players (by reading their documents). I think however eeepc plus USB DAC will outperform iriver (while using the same music files) since iriver is limited by its size - it's music playing plus DAC and everything all-in-one. Nevertheless, if you only listen to popular music and have low-quality mp3, the difference may not be that great. But for high-quality mp3 (over 320kb) and more demanding music (classical or even sophisticated pop), the difference will be noticeable. The above are all theories but I think it is reasonable prediction. I would love to hear your report! then I'll know if my theories are correct ...

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作者: ChaCha7    時間: 2008-8-29 23:58


Agree ... 901 has a big battery supply so one can use it without using AC power ....

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作者: WHO    時間: 2008-8-30 00:38

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作者: imagine    時間: 2008-8-30 00:52



相對來說是正確的，因為問題還有每次播拾取CD訊號都會不同
其實不只是0101的，還有Jitter及外來扞擾影響著
是否準確保持原有數碼訊號也是問題
但我都朝這個方向去玩，繼SB2後，遲d再玩獨立APE player

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作者: WHO    時間: 2008-8-30 01:20

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作者: ChaCha7    時間: 2008-8-30 02:02



Whoa ... I think we're getting too deep here. Yes, Jitter is the 'timing' data of the audio signals, as I first mentioned in the post. If timing is incorrect, music sound bad.

But there're a lot of factors affecting performance, perhaps too many (the discussion can go on forever). Having right jitter is one key step, but there're many 'steps' awaiting you.

So WHO hing, my experience is up to a point, let all those technical jargons go! Just try the simple setup first, if it's good, then forget about learning more for a while and enjoy your music! Cos I realise I can spend a lifetime learning the technical side of music and end up having no time to enjoy music

SO now what are you planning to experiment? I think it's ...

(1) eeepc + EAC + Foobar2000 --> $330 USB dac (USB cables) --> headphone (or speakers)??

(2) Desktop + EAC + Foobar2000 --> FREE MD ($50 optical cables) --> speakers

It's less than $400!!!
From a cheap cheap point of view, try MD first

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作者: ChaCha7    時間: 2008-8-30 02:08

"Dare not say any report la, just some subjective feeling when comparing the output quality of
1/  UA processing digital audio data (I start to wonder how "true" it is ); and
2/  Philips chips set processing mp3 format data
Right now I have absolutely no idea"

Sorry, what do u mean here ... What is UA??

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作者: WHO    時間: 2008-8-30 02:34

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作者: ChaCha7    時間: 2008-8-30 02:59



Really wanna know how your experiment will lead you to ... will you use headphone? There are issues about matching the "impedance" of headphones and the output of the USB DAC ... I have been thinking about whether mentioning this issue or not since I think more info will destroy the impluse and fun .... but I think you're those who prefer to learn and know more and i dun want to be beat by you after you have bought the dac ..

So one final question, will you be using headphone or speakers???

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作者: salesman    時間: 2008-8-30 06:46



NX-U10. Of course it is convenient, you can find it at tom-lee music.
http://www.yamaha.co.jp/product/av/prd/speaker/nx-u10/index.html


The NX-U10 may not be the ultimate in high fidelity... When I first spied the NX-U10 USB powered speaker system at CES, I was pretty impressed.

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作者: imagine    時間: 2008-8-30 07:02

Simple is the BEST
越簡單越直接越好
還是那句，不要麻目追求器材

耳機的而且確要注意與耳擴之阻擴匹配
但我覺得可以簡單點分 低阻抗 細過120ohm 和 高阻抗 120-600 就OK

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作者: Dijeridu    時間: 2008-8-30 08:59



that is the place where i got the ua. but the price is up.

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作者: Dijeridu    時間: 2008-8-30 09:01

"Simple is the BEST
越簡單越直接越好
還是那句，不要麻目追求器材"

this is my golden rule too.

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作者: imagine    時間: 2008-8-30 09:45



小心d啊，我可以100%講，那台mini usb dac而家無比香港銷售，有都係佢地係hifixxx買左再倒賣
裡面有無比人換野都唔知！要買就找都1-2個老友，在網站自己買最平，找換店匯錢只需幾草
而且可匯到他們香港帳號
快遞1日就到，3-40運費，省錢省時間，好過唔知買到是否有問題的貨
而家原站賣rmb680成品，，自己計計香港價錢是否合理

[ 本帖最後由 imagine 於 2008-8-30 09:46 編輯 ]

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作者: salesman    時間: 2008-8-30 10:38



從科學角度看的話只要能控制及確保以下各點就能發輝音響器材的應有效能, 可作為音色攻略的前提:

1. [器材] 了解設計本身之目的與作用, 根據聆聽空間作出適當的組合.

2. [能量] 純淨與穩定的能源供應.

3. [環境] 房間的濕度及氣壓直接影響音波的傳送與調和, 此外房間的空氣成份與器材保養有直接的關係.

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作者: WHO    時間: 2008-8-30 10:55

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作者: WHO    時間: 2008-8-30 10:58

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作者: salesman    時間: 2008-8-30 11:00

好的音色另一重要來源: Artist
NXU-10 recommand Artist :masao
原音無料試聽:
http://www.yamaha.co.jp/product/av/topics/nx-u10/index.html
http://masao-topic.seesaa.net/

[ 本帖最後由 salesman 於 2008-8-30 11:39 編輯 ]

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作者: WHO    時間: 2008-8-30 11:03

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作者: ChaCha7    時間: 2008-8-30 15:02



I knew you like to 做功課 !!

For your reference, you can also consider NuForce Icon. It's doubled of HiDIY USB. But NuForce Icon has a class D amp (dun ask me what Class D is it's a new effective way of amplifying signals so the amp can be so much smaller anyway ).
http://www.review33.com/ad/clarity/ad8.php
I heard it once in SSP display. It's very good sound for its price and functions. But it was $1780 sth.

Yes, if you buy soundrigor, HIFIDIY or Icon (the price goes up ... oh), you may need to upgrade the headphones

I have never tried China-made active speakers. Will you consider speakers (you seem to prefer headphones )? I think some China brand are making very good active speakers (with amplifiers inside) at the price range $300 to 400.

Oh WHo hing, check your email, i have asked you some questions about programmes !!

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作者: ChaCha7    時間: 2008-8-30 15:14



Yes, the place which sells sundrigor has a lot of headphones and headphone amps for display. Many things for testing tim! You can go there and try!

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作者: ChaCha7    時間: 2008-8-30 15:16



Checked the jap website. Not cheap woh  ... but it really looks cool indeed!~May go to Tom Lee and have a look

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作者: WHO    時間: 2008-8-31 02:32

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作者: ChaCha7    時間: 2008-8-31 02:42


WHO hing, I actually recieved your reply which is EXCELLENT. But I spent several hours troubleshooting my desktop and found 34 trojans! It's from QQ! So I haven't reply yet.

I think you want to know the universe before choosing which planet to land ma (do you know what I mean ) Yes, I agree and think that soundrigor or similar thingy will have great improvement already. As I said, I am using MD as my DAC for my desktop and feel satsified

Did you go to that MK shop? It's like a supermarket with many headphone amps free for testing, which is nice You can upgrade your headphone there as well

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作者: WHO    時間: 2008-8-31 20:02

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作者: imagine    時間: 2008-8-31 22:53

要平玩，我覺醒nuforce好唔抵，草草看了一會spec和圖片
只不過等於一張用BB pcm2706的sound卡加上小class d amp
(其實一樣的amp台灣做了好久，各家都可自行印上自己品牌的芯片，我都有diy過)

而國內一般做法，只會用BB pcm2706的USB->SPDIF部份
然後加上一個獨立解碼芯片，再經由op放大輸出

nuforce的DAC字眼有丁點誤導成份，聲音是pcm2706處理輸出，好極有個普。

最平玩法我覺得可以這樣，而且可以好好聲！！
USB轉同軸器件(PCM2706芯片) RMB120左右，有d設計還會加上analog輸出，即是你們所說的RCA紅白頭
1793或1543DAC， RMB150左右
10w 那型號的T-amp，可接喇叭或直推耳機 RMB120，
國內大把設計賣家，聲音不少人都說像膽機，國外不少討論，
而我會以物超所值形容，因為每個人聽感不同
這樣已經等於nuforce
而單純以聲音訊源轉換計，肯定比nuforce只單用2706好得多
而且還可換不同DAC

除非錢多、要靚，聲音次要
要不2k買那個產品我會覺很好唔抵

但它整合度確是高、外觀也不錯

[ 本帖最後由 imagine 於 2008-9-1 06:59 編輯 ]

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作者: ChaCha7    時間: 2008-9-1 03:40



WHo hing, It seems you want to set your iriver and eeepc in a duel!

I answered the easier question first: (1) select songs you are very familar with. Doing so helps you judge differences since you're familiar with the 'soundscape' of those songs; (2) select some songs which match your taste - strong bass? complicated arrangement? Violin? Female voices? Piano Concerto? Since you test things with the music you love most, it helps testing. (3) select some 'extreme' songs, which have high dynamic range. Get some complicated classical or rock music - even if you dun particularly like. Email me if you need any samples of this kind!

Yes, foobar200 can use RAM play. Go to "Preference --＞ Advanced --＞ Playback --＞ Full file Buffering up to". Imagine one song is at most 200MB (some piece is longer), it's 200*`1024kb. Enter this no. there. But to use this function fully, you need to use WAVE (there's another player called cplay, which can do full RAM play for FLAC, but I dun want to discuss it for now since it has a very inconvenient interface.  For testing, foobar200i is OK!)

There's one thing I mentioned very long ago - ASIO4ALL. This is used to set up sth bypassing the windows internal sound system. I'll email you reference to this, but for now I think you can rip your songs!  

But I think you may borrow more high-class headphones there to do the test Otherwise not fair to eeepc!

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作者: jcls    時間: 2008-9-1 12:22

其實有冇d可以usb出digital signal, 由amp解碼嘅野呢.  用DAC變左要試DAC的聲啱唔啱口味???

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作者: ChaCha7    時間: 2008-9-1 15:48



Yes, you can. But I think you have to buy some new generation of amplifiers. There are at least 2 options here:
(1) USB Headphone amp (e.g.soundrigor) - use headphones / output jacks to connect to your active speakers. It has internal DAC inside.
(2) Amp with USB input (e.g. NuForce Icons) - Some new products belong to this category. Pioneer A-A9-J f seems to be another choice. There should be more, google it by the following words: "amp, "internal dac", usb' ... The price range in this category may be great ...

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作者: WHO    時間: 2008-9-1 23:58

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作者: ChaCha7    時間: 2008-9-2 02:16


Really, I haven't used WinAmp. But I heard there're differences. Congratulations. There're some settings about Foobar200. Using them (including disabling many of them) may produce better sound. Maybe you this super-googler have already find this info ...

Just found two pics for sharing

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作者: WHO    時間: 2008-9-2 03:53

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作者: buyitnow    時間: 2008-9-2 05:23

多謝師兄分享

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作者: ChaCha7    時間: 2008-9-2 07:12



THANKS

I got one more pic. The one next to eeepc (701?) is the famous, over HK$10000 Benchmark DAC 1 (some people dislike its super-clarity though). The 'egg-box-like' thing is 'sound absorption sponge'

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作者: WHO    時間: 2008-9-2 11:54

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作者: chow1001    時間: 2008-9-2 13:44

IMO....this is too over.... x999999999999999999999

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作者: chow1001    時間: 2008-9-2 13:46


you clean it with water if you could
burn-in is different thing......should not related with this...

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作者: timothychan    時間: 2008-9-2 14:04

if you can spend over 10 K to buy a DAC
you will not mind to spend more to buy a better notebook or other audio things

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作者: WHO    時間: 2008-9-2 15:43

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作者: ChaCha7    時間: 2008-9-2 15:52


No ar ... some local audiophiles explicitly 'embrace' eeepc as an excellent 'cd player'
My pic is taken from here:
http://www.odysseyaudiohk.com/cgi-bin/yabb/YaBB.pl?num=1209218000
They use very 'high-end' products which I can't afford or dun necessarily need though but price doesn't necessarily mean good products

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作者: WHO    時間: 2008-9-2 15:55

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作者: ChaCha7    時間: 2008-9-2 15:58



"BTW, so far I cannot find anything close to "play from ram" in foobar.  "

You can go to file --> preference, than advanced, then playback, there is a column like buffer.
Assuming your WAVE or FLAC is normally less than 200M per song, you can enter 200*1024 kb there.
Note for foobar FLAC is decoded on the fly - FLAC is loaded on the RAM, and then decode as WAVE format. Some prefer playing WAVE since this decoding process is eliminated. It's still debatable when this affect performance. Simply put, dun worry this at the moment!

"I do find ASIO4ALL on their web.  Is it kind of add-on?  Can I try it without DAC?"

It's the driver thing controlling how sound is fed to the DAC. See this link!
http://www.head-fi.org/forums/f46/asio4all-explanation-221237/
There are many settings there but I didn't manipulate them. Just choosing USB DAC is ok.

[ 本帖最後由 ChaCha7 於 2008-9-2 16:03 編輯 ]

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作者: ChaCha7    時間: 2008-9-2 16:12



That's my intention ... I just wanna say eeepc could be very 'high-end' ga ... of course we can use it whatever we wish, we're the owners!