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回覆 (45): Digital Shoot Out at Master Limage's Audio Vault.
We only get a look of the LPs but never heard one of them, as none of them can reach the same height as his analogue system.....
Hercules
09-01-20
10:25:11
回覆 (44): Digital Shoot Out at Master Limage's Audio Vault.
Vash,  
 
Saw your posting at the "DIY 自作派同好同學會" thread. I learned about this interesting event on last Sat from Master Limage when I met him at other social event. Shamefully, I have to work today, otherwise, I would have asked for permission to join.  
 
I look forward to more details on experience or observation sharing. BTW, as I have heard from many other audio buddies (I have no first hand experience yet), Master Limage's analogue front end is one of the best sounding setup in town, I would be very interested to know how various CAS combination compared against this cream of the crop analogue setup.  
 
Honestly, I would NOT hold my breath and hoping that there is any miracle - a digital front end would better an analogue one by large margin. Despite my keen interest on CAS, my limited experience really told me that digitization of music brings convenience rather than fidelity.  
 
Base on my most recent participation of another digital shoot out event (Wadia iTransport + Benchmark DAC vs Dedicated WinOS Computer + Benchmark DAC vs Dedicated WinOS Computer + tubediy's NOS USB DAC), it has once again added to my "confusion" in the exploring quest of digital vs analogue.  
 
Observation No. 1: digital content through a high frequency up-sampled DAC does not necessarily produce better music than the same content going through an NOS DAC.  
 
Observation No. 2: Whenever, a decently setup analogue front end (say of comparable budget) voices , it typically would sound better than the digital one by a fair margin. Rhythm & pace and ability-to-involve seems to be two common weak departments of digital front end.  
 
Looks forward to more color from your party.
icefox
09-01-20
04:36:19
回覆 (43): Computer and/or Network as Source
thanks for the info again. :-)  
 
mdlover
09-01-15
15:10:19
回覆 (42): Computer and/or Network as Source
Mdlover,  
 
Cply uses secret rabbit code lastest code. It does the upsampling during play back (internally) so it does take some some CPU resources. For free SRC algorithm, SoX seems to be the best. The code is also available.
ackcheng
09-01-14
01:06:34
回覆 (41): Computer and/or Network as Source
Most low price USB-to-SPDIF converters or USB DAC can handle USB data only up to 16/44.1 - 48 (even if their internal DAC chip is 24/96 capable).  
 
Audiotrak's are exceptions so they are good for CAS beginners. Their Prodigy Cube & DR.DAC2 cost only about HK$800 & HK$2500 respectively if purchased from Korean webshops! They are so cheap because they are made in Korea & that the Korean Won is very weak at the present moment.
PeterK
09-01-13
19:51:13
回覆 (40): Computer and/or Network as Source
Mdlover  
 
refers to SNR  
-----------------------------------------------------------  
 
thank you, Arthur.  
 
so CPlay will do resampling (internally or by external plug-in)?  
 
 
 
i'm not sure wesis even does their own development of the firewire. it might just be an oem firewire interface from a handful vendors..  
---------------------------------------------------------  
 
Weiss is using an "off the shelf" firewire solution but it's not from Sony Oxford though. :-)
mdlover
09-01-13
19:11:19
回覆 (39): Computer and/or Network as Source
>>>i wonder if it's possible to have a 2-chip dac with auto switching in the future??  
 
I don't have such worries since Weiss DAC2 featuring digital in and digtial out on both 75ohm Coaxial and 110ohm AES format, ie. daisy chain for my 16 bit dac.  
 
My pre-amplifier do the channel/input switch.  
 
Vash
09-01-13
14:07:31
回覆 (38): Computer and/or Network as Source
vash hing,  
 
i have very same view like yours, that we need to have 2 dacs, just like people keep dvd player and blue ray player.  
 
i wonder if it's possible to have a 2-chip dac with auto switching in the future??
mahi
09-01-13
14:02:12
回覆 (37): Computer and/or Network as Source
This one support up to DXD, DSD level from Denmark.
http://www.digitalaudio.dk/ax24_present.htm
Vash
09-01-13
13:51:16
回覆 (36): Computer and/or Network as Source
Some of my favorite hi-res. dac brand....
http://www.berkeleyaudiodesign.com/
Vash
09-01-13
13:48:13
回覆 (35): Computer and/or Network as Source
King is right.  
 
Daniel of Weiss informed me that they have a partner who writing driver/software for interfacing the firewire dac with both XP/Mac OS platform. While Daniel takes his main role on developing the good sounding DSP for his digital products line.  
 
Asycn. protocol is a main concern, not all USB dac like Wavelenght's do. But, for long term usage, or say, an audiophile enthusiat and in technically speaking, 24/192 will be the main trend. USB limited the highest capacity to 24/96 only.  
 
CD ripping remained unchange and that's why I keep my system using 2 dac as well (Weiss DAC2 + 1541NOS dac) for different format.  
 
If possible, why not wait for the next gen. of USB, USB 3.0 ?  
 
^__^  
 
Vash
09-01-13
13:46:09
回覆 (34): Computer and/or Network as Source
gordon of wavelength does some interesting things on the usb front. his usb probably recent offering is using asych protocol. this is very different than almost all usb based dac out there. so you can't just lump it as just another usb dac. and i think he is not using any nos stuff for his new dac. i'm not sure wesis even does their own development of the firewire. it might just be an oem firewire interface from a handful vendors..
drwkng
09-01-13
12:01:40
回覆 (33): Computer and/or Network as Source
vash hing,  
 
yes, i agree wavelength is expensive. but like weiss, it's a usb solution + a dac nonetheless. if you see it as a dac with usb input, then the value proposition is different.  
 
each dac has a house sound so comparison can't be made on function/features alone. wavelength guy attracts me because his specialty is single ended tube amp and he prefers 16bit nos dac, sort of part of audio note camp. weiss on the other hand is ultra modern and cutting edge technology. my guess is the latter is more capable to extract the potential of latest hi-refs music, whereas the former is more suitable for existing cd-based music library.
mahi
09-01-13
11:56:27
回覆 (32): Computer and/or Network as Source
if the need is to experience computer audio, i suggest people opt for a simple USB-spdif converter, there's many such kind of products out there. you can just use it bridge your computer and your statement dac (which you already use daily) and this way you have at least 60/70% certainty about how it sounds, no need to play around different dac of unknown quality.  
 
i think converter + statement dac will likely sound better than most mass market usb dac.
mahi
09-01-13
11:49:24
回覆 (31): Computer and/or Network as Source
 
 
 
And this too............
kris
09-01-13
09:25:04
回覆 (30): Computer and/or Network as Source
 
 
 
 
Hi Peter, let's see if this works.....
kris
09-01-13
09:23:53
回覆 (29): Computer and/or Network as Source
I am using the DR.DAC2. Reasonable price & sound if buying from Korean webshops.  
http://www.audiotrak.jp/product/?audiotrak=DR.DAC%202  
http://www.audiotrak.jp/product/prodigycube/
PeterK
09-01-13
07:35:29
回覆 (28): Computer and/or Network as Source
Because using USB DAC, no extra sound card required to give out digital data stream for external DAC. but currently USB only handle up to 24/96 max.
Hercules
09-01-12
19:31:28
回覆 (28): Computer and/or Network as Source
Wow, Wavelength seems great but really expensive. This price tag can even purchase a Weiss DAC w/firewire connection and capable to read 24/192 data from both XP or Mac OS and all sync with internal master clock.  
 
My current CAS is just a cheap and outdated XP PC > 1394 > Weiss DAC2 > Pre-amp..  
 
 
Vash
09-01-12
19:16:50
回覆 (27): Computer and/or Network as Source
hercules hing,  
 
my experience is only limited to 2 usb dac and worse, squeezebox + dac. what's purpose of extra soundcard you referred to? do you mean you want create create a music server with perfect digital out (coax) to connect to your existing dac? a perfect pc transport on DIY?  
 
wavelengh has 4 price levels of dac for ppl to choose. as a solution, just use a ordinary pc/mac and it's ready to go. this is good for those who don't want to fiddle around their pc too much. so i say it's a good choice on a 'product' level.  
 
comparing a product with a project is not apple to apple. but i do agree this field is too fluid and changes so fast. today's good idea will be eclipsed in a few months.
mahi
09-01-12
14:13:49
回覆 (26): Computer and/or Network as Source
121.33dB and 145.68db SNR is an upsampler option features in CPlay (RAM media player) player settings.  
 
^__^  
Vash
09-01-11
23:52:27
回覆 (25): Computer and/or Network as Source
Mdlover  
 
refers to SNR
ackcheng
09-01-11
23:46:48
回覆 (25): Computer and/or Network as Source
MDlover,  
 
Refers to SNR  
ackcheng
09-01-11
23:46:28
回覆 (24): Computer and/or Network as Source
Windows 7 faster than XP in my Atom!
Hercules
09-01-11
23:13:58
回覆 (25): Computer and/or Network as Source
hi hercules,  
 
what is 121dB and 145dB referring to?  
 
mdlover
09-01-11
23:13:47
回覆 (24): Computer and/or Network as Source
Windows Vista seems slower than XP.
jcml
09-01-11
16:34:12
回覆 (23): Computer and/or Network as Source
I have a little update on my CAS, just installed Windows 7 64-bit beta on it, quite impressive for it performance over XP (I skipped Vista anyway) for upcoming Hi-Rez PC playback, absolutely worth everyone eye's on it development.  
 
The first thing to do is try to install Vista Driver for Lan if Windows 7 not support the onboard LAN, before you have ability to reach internet, and get updated from MS.  
 
The wireless Lan not working just after installation, it works after using fix LAN line for internet, using windows update, to obtain the supported driver from Microsoft instead from original manufacturer.  
 
Just a little compatibility issue to some playback software  
 
Playing itunes in Windows 7 and AJP3, flawless!! just one thing not really smooth on Win7, I can't install Wireless Lan Driver for Windows 7, my Windows 7 is offline mode now. But thumb drive is very easy for transfer and install program for Windows 7.  
 
Running on Windows 7 Ultimate 64-bit with Atom 1.6G, 2G Ram in Dual Channel.  
 
Tested Program:  
 
Cplay 2.15 ok  
foobar 0.9.6.1 ok  
ASIO4ALL 2.9 ok  
itunes 32-bit ok  
VLC player FAILED  
 
Extra test on Cplay also conducted this noon.  
 
16/44 file play at 44khz and 121dB, CPU Utilization 2~6%  
 
16/44 file play at 44khz and 145dB, CPU Utilization 2~6%  
 
16/44 file play at 88khz and 121dB, CPU Utilization 28~38%  
 
16/44 file play at 96khz and 121dB, CPU Utilization 35~49%, pop and click found  
 
 
16/44 file play at 88khz and 145dB, ASIO failed  
 
24/96 file play at 44khz and 121dB, CPU Utilization 31~48%  
 
24/96 file play at 44khz and 145dB, ASIO Failed  
 
24/96 file play at 88khz and 121dB, CPU Utilization 31~46%  
 
24/96 file play at 96khz and 121dB, CPU Utilization 1-6%  
 
24/96 file play at 96khz and 145dB, CPU Utilization 1-11%  
 
This result concluded that, if your play setting matching with the sampling rate (44>44, 96>96) and 16-bit to 121dB, 24-bit to 145dB, the CPU loading can be neglect. or only upsampling one of the parameter a time, still able to work with netbook, but double upsampling (16/44 -> 24/96), still a mission impossible for single core ATOM.
Hercules
09-01-11
16:25:56
回覆 (22): Computer and/or Network as Source
Wavelength is too expensive....but you can save the money for extra sound card.  
 
Hercules
09-01-11
16:14:48
回覆 (21): Computer and/or Network as Source
Another dac option for you to consider.  
 
I've listened to Wavelength's cosecant once. It has very good reputation overseas and its designer being both an engineer and a musician (or grown up in a musician family) gives me some confidence of its product quality.  
 
Wavelength is a pioneer in using usb connection - it uses asynchronous sampling so the computer clock follows the clock inside the dac. I don't know much about this thing but I do know only a handful dac do this, while others use usb-spdif converter chip.  
 
Another thing I like about this product is you can plug in different decoder modules to suite your taste, currently there's 16 bit NOS, and two choices of 24/96 chips. So for example, I can start with the standard 16 bit module (since 99% of my computer library is cd-ripped) and move to the 24 bit version in the future when I gather enough hi-res music.  
 
I'm not gonna comment on the sound because I've not listened to other USB dac other than benchmark (which is 1/3 cheaper so it won't be a fair comparison anyway). And individual tastes vary, especially with NOS dac.  
mahi
09-01-11
14:00:37
回覆 (20): Computer and/or Network as Source
Any outdated PC in your home/store room ?  
 
Load it up with this free linux based OS which aims for fancy media playback. I voted it a better choice rather iTune of Mac OS X.  
 
The RT version support firewire as well !!
http://www.earos.dk/#fragment-2
Vash
09-01-04
15:46:35
回覆 (19): Computer and/or Network as Source
Then, KECES DA-131 is a better choice.  
 
 
 
^__^
Vash
09-01-04
14:40:38
回覆 (18): Computer and/or Network as Source
>路過代答。  
 
>Hercules 既 Musiland MD-10 用 USB 接駁電腦只可去到 24/96。  
 
No, the USB only support 16/44, now using onboard SPDIF out to MD-10, the quality is ok as the system itself is quite as no fan and low power requirement.
Hercules
09-01-04
10:16:28
回覆 (19): Computer and/or Network as Source
平 D 既話仲有呢部…
http://blog.yam.com/hifihivi/article/16094211
Vash
09-01-04
05:11:28
回覆 (18): Computer and/or Network as Source
要合理成本用電腦玩 USB dac 不妨考慮這部來自臺灣既 KECES。  
 
三千餘元可以一試。
http://home.so-net.net.tw/chufamily/DA152/DA-152.htm
Vash
09-01-04
04:55:29
回覆 (17): Computer and/or Network as Source
路過代答。  
 
Hercules 既 Musiland MD-10 用 USB 接駁電腦只可去到 24/96。  
 
不過佢部 MD-10 改到會飛咁滯,D 聲好似播黑膠一樣!令我部 Weiss DAC 汗額呢!  
 
^__^  
 
Vash
09-01-04
04:37:36
回覆 (16): Computer and/or Network as Source
Hi Hercules,  
 
"1.6G Atom based fanless/diskless(no optical disc/harddisk) -Mini ITX to Musiland MD-10 DAC"  
 
What is the the interface between the computer and the DAC? Is it USB? Does it have enough bandwidth for 24/192 or 24/96 that you guys praise a lot?
icefox
09-01-04
04:04:29
回覆 (15): Computer and/or Network as Source
icefox,  
 
They are two different product and target for different market....  
 
ICON come with build-in dac and headphone amp. for general headphone while devilsound dac featuring SMD components but line level output only. I think, both of them are good toys.  
Vash
09-01-02
18:32:01
回覆 (14): Computer and/or Network as Source
icon is a toy. cheap but nasty^-^
drwkng
09-01-02
16:17:48
回覆 (13): Computer and/or Network as Source
Vash,  
 
Thanks for the Icon Mobile, it is definitely in my "to-watch" radar. Any idea how this compare to the devildac?
http://www.devilsound.com/
icefox
09-01-02
15:41:24
回覆 (12): Computer and/or Network as Source
cp, icefox,  
 
呢部仲輕巧抵玩呵。  
 
http://www.nuforce-icon.com/
Vash
09-01-01
16:02:05