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[#81] Blogs: 數碼音樂重播專欄 (1)     
Hi Kent,
As you are a MacBook Pro user and also selling Weiss DAC at Fortress, would you try out the new Thunderbolt and tell us whether it has any advantage in terms of sound reproduction over Firewire 800 that you encourage audiophiles to use. Fortress sells the computer and you may plug it with Thunderbolt into your demo gears there the sound of which are familiar with, and tell us whether there is any improvement over Firewire 800.
Thanks
momei
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2011-05-12 17:06
[#82] Blogs: 數碼音樂重播專欄 (1)     
Is Thunderbolt backward-compatible with USB and FireWire?

Third-party vendors will sell adapters, available sometime this spring, that let you connect USB, FireWire 400, and FireWire 800 devices to Thunderbolt ports. Thunderbolt won’t make these legacy devices any faster, however—they’ll still be limited to the performance of their built-in components. For example, a FireWire 800 device still won’t be able to transfer data faster than 800 Mbps.

-------------------------------------------------

I expect the thunderbolt port running in firewire 800 compatible mode to work with Weiss DAC will make no difference as ordinary firewire port.

The real difference and advantage can't tell until real thunderbolt device available.
hercules
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1.xxx.xxx.80
2011-05-12 18:09
[#83] Blogs: 數碼音樂重播專欄 (1)     
Sorry that I missed this post.

CAS blog #4 is about the INTEL Cebit show in German. Weiss in invited to demonstrate in Intel booth with MAN202 prototype (which uses INTEL technology).

We also touch base with Intel if Thunderbolt will provide better quality, but we doubt it. MAN202 is also using Apple iPAD as remote control.

Since Thunderbolt is compatible with USB/Firewire/Display Port, just get the matching cable will be the same.

Faster bandwidth does not necessary means better quality, but we will see.

DWS
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2011-05-13 18:12
[#84] Blogs: 數碼音樂重播專欄 (1)     
and Batman hing,

thanks for posting STS company. They are our good customers. Actually this workflow can be enhance when the ADC2 is working in 96kHz and maintain at 96kHz until finally Pow-R with SRC back to 44.1kHz.

The main reason is both DNA-1 and DS-1 are working in double sampling rate (88.2/96). This means each of them will upsamples the 44.1/48 signal before processing and downsamples back to 44.1/48 at its output.

DWS
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2011-05-13 18:14
[#85] Blogs: 數碼音樂重播專欄 (1)     
Dear Kent,

Can you let us know which specifice Intel technology with Man202 use? I thought it will be a dedicated computer running Linux?
ackcheng
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210.xxx.xxx.250
2011-05-13 18:47
[#86] Blogs: 數碼音樂重播專欄 (1)     
Dear ackcheng,

MAN202 uses Intel SSD, Intel chipset and other technologies. Indeed it is what you describes. Next week we will have an important meeting in Munich to solid the idea of MAN202 core technology as platform.

A platform means it can be an on going development path on audio DSP, which Daniel's team has been best at. We also have to set goals in order to have products ready for the market in different time schedule.

We also will discuss the AFI1 development. AD/DA etc. Samuel Groner will lead the analogue circuit designs (He designed DAC202, OP1-BP, and coming OP1-JFET soon.



DWS
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2011-05-14 08:28
[#87] Blogs: 數碼音樂重播專欄 (1)     
Dear ackcheng, (and other Weiss friends).

I think you will have more ideas about everything from this interview: http://designwsound.com/dwsblog/2011/05/interview-daniel-weiss/

DWS
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220.xxx.xxx.61
2011-05-14 23:26
[#88] Blogs: 數碼音樂重播專欄 (1)     
Thanks! That's ver informative!
ackcheng
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112.xxx.xxx.59
2011-05-15 00:01
[#89] Blogs: 數碼音樂重播專欄 (1)     
So many probing questions from the knowledgeable interviewer; a "must read" for any audiophile interested in computer audio IMHO.
momei
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2011-05-15 06:35
[#90] Blogs: 數碼音樂重播專欄 (1)     
With the technology available with Weiss, he should try to use SHARC as the DSP processor instead of intel chip. This will make subsequent processing software alot more powerful. Also make the competitor difficult to catch up. I am afraid that he will sacrifice the quality for profits.... As mentioned in the interview, even if the Dac is of poorer quality, it will sell because of the brand name.
ackcheng
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203.xxx.xxx.171
2011-05-15 20:11
[#91] Blogs: 數碼音樂重播專欄 (1)     
Just some random thoughts only. Hope you don't mind!
ackcheng
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223.xxx.xxx.90
2011-05-15 22:04
[#92] Blogs: 數碼音樂重播專欄 (1)     
Dear ackcheng, you mis-understood his point on the "poor quality" DAC.

What he means is nows today people are rating the DAC chipset more than anything else in DA designs. So that even Weiss products do not use the best "specification" DAC chipsets, it will still sell because it will reach the quality standard in our own perspectives, and more often better than other companies using the best "specification" chipset.

We all know how much it costs for a DAC chipset, but solid engineering always more important.

Further about the Sharc DSP. We have those in ALL professional DSP boxes. The best example is SFC2 (sampling rate conversion). It uses Sharc DSP calculates in 40bit fix and floating points.

Few years ago we launched our first software based software "Saracon". Saracon does not only much cheaper (1/5 prices) than SFC2 because lacks of all hardware costs. Saracon calculation is double precision 64bit floating points. It gets rid of AES/EBU standard of max. 24bit (-144dBFS). Therefore Saracon is objectively a better product (PCM to PCM in any rate reaches -180dBFS THD)

Daniel doesn't need to try using Sharc, he is consultant of TI of using Sharc in audio applications. What actually we are looking is similar to Nvidia GPU calculation in graphic card. One of this card can provide floating point calculation better than hundreds of SHARC DSPs, very scary spec. The world fastest company by China is making use of GPU calculation instead of CPU. But this is overkill for audio application.

Intel CPU calculates in 80bit floating points. Since it does not run Windows/Mac OS, the customize Linus has most direct access to resources and execution.

I do concern your comment (but always respectfully) because Daniel is not a business man and does not focus on profits at all. He will be last man to sacrifice quality.





DWS
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2011-05-15 22:16
[#93] Blogs: 數碼音樂重播專欄 (1)     
> Just some random thoughts only. Hope you don't mind!

Oh no, not at all. Thanks for given me a chance to explain and provide more information too.

Greeting from Nagoya, Japan.
DWS
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2011-05-15 22:18
[#94] Blogs: 數碼音樂重播專欄 (1)     
Thanks Kent for your clarification,

"Daniel doesn't need to try using Sharc, he is consultant of TI of using Sharc in audio applications"

Actually, I noticed that he uses SHARC in his Powerhouse so I thought using this technology in MAN202 would be a natural progression! Well, may be there are something better around the corner!

Using GPU may even be better than CPU for the kind of calculations we need. Something like CUBA can hack the GPU for this purpose! Someone is already working on it at DIY level!

ackcheng
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112.xxx.xxx.59
2011-05-15 23:59
[#95] Blogs: 數碼音樂重播專欄 (1)     
Hello ackcheng, thanks for your comment.

Powerhouse is Weiss latest product using Sharc, AND it is a product which cannot see its life in public. =....(

Luckily, Weiss has customized clients, especially in audio research field. I am sure you notice the Virtual Haydn project by McGill's Wieslaw Woszczyk.
http://www.music.mcgill.ca/thevirtualhaydn/

That was time Daniel and I discuss "WHEN" computer surpasses hardware DSP.

There are 2 types of DIYers - one thinks he/she smarter than all commercial brands. The other is doing something really special but have no interest in commercial direction.



DWS
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2011-05-16 00:12
[#96] Blogs: 數碼音樂重播專欄 (1)     
It is a pity that the powerhouse project is killed. But it is good to know that you guys have a clear direction! Well, I'm a professional, so now as a customer, I will leave the tough part to professional like you! DIY is just for fun, for me!
ackcheng
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2011-05-16 00:39
[#97] Blogs: 數碼音樂重播專欄 (1)     
powerful sharc processor , same as the one used in weiss medea ( please correct if I am one)

batmanames04
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61.xxx.xxx.217
2011-05-16 09:31
[#98] Blogs: 數碼音樂重播專欄 (1)     
old weiss medea ( ) with sharc processor ( exactly same version sharc processor as accuphase DF 35 digital crossover)



batmanames04
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61.xxx.xxx.217
2011-05-16 11:17
[#99] Blogs: 數碼音樂重播專欄 (1)     
DS1-MK3 has 5 x Sharc DSPs.


DWS
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2011-05-17 10:30
[#100] Blogs: 數碼音樂重播專欄 (1)     
BW102



DWS
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2011-05-17 16:54
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