Musiland "Digital Times" 24/192 PCI card (digital output only)
May 29, 2010 at 10:18 PM Thread Starter Post #1 of 55

ironmine

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Hi
 
I just found out that Musiland offers this card:
http://translate.google.ru/translate?u=http%3A%2F%2Fwww.musiland.com.cn%2Findex.php%2FProduct%2Fshow%2Fid%2F182&sl=zh-CN&tl=en&hl=&ie=UTF-8
 


 

You can see it only in the Chinese part of Musiland's website www.musiland.com.cn. You cannot find it if you follow "English" link from the main page.
 
Here it is on eBay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&Item=330437561822&Category=75518&_trkparms=algo%3DLVI%26its%3DI%26otn%3D1
 
Price: US $66.55, shipping is free.
 
It does not have any analog outputs, ONLY digital ouputs (BNC, coax, optical).
 
It has VIA Envy24 chip, asynchronous buffer, ASIO, transformer coupled outputs separate for each SPDIF output, stabilized power supply, etc. It supports DTS/Dolby Digital output.
 
So, what do you say?
 
May 29, 2010 at 10:41 PM Post #3 of 55
Well, it says (translation by google): "XILINX's FPGA chips with VIA Envy24 professional audio controller chip, to avoid the SRC process and systems Mixer, ensures maximum fidelity audio playback. FPGA is also used to provide accurate clock, and build a huge asynchronous buffer, used to generate the precise timing of audio, so audio quality is only accurate before providing the smallest jitter output."
 
Is it what you are looking for?
 
I can also see that it has only one quartz on its board. Is it too bad? But then, say, how many quartz does Audiophile 192 have?
 
May 29, 2010 at 10:54 PM Post #4 of 55
yes, but how many gates? the old FPGA has 50K, the new one has 250K.
 
It's got a VIA chipset, so it's most likely using the VIA generic drivers....I think Musiland can do better than that! We need a Monitor 03 w/ the 250K gates FPGA
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May 29, 2010 at 11:12 PM Post #5 of 55
There is a Chinese review of Digital Times here:
http://translate.google.ru/translate?u=http%3A%2F%2Fwww.soomal.com%2Fdoc%2F10100001007.htm&sl=zh-CN&tl=en&hl=&ie=UTF-8
 
May 30, 2010 at 12:45 AM Post #7 of 55
It has a FPGA which is called "Spartan XC3S50A".
 
May 30, 2010 at 12:55 AM Post #8 of 55
Still 2 dcm, so no fast switching between 44.1 family and 48K family. You need at least 4 dcm to handle both families without reloading the dcm coefficients. Musiland does have a high-end PCI card with the 250K gate fpga and 4 dcms
 
May 30, 2010 at 1:08 AM Post #9 of 55
GLT,
 
1) Why is it important to be able to switch fast between 44.1 family and 48K family?
 
2) Which hi-end card do you mean? Can you tell me its exact name?
 
May 30, 2010 at 1:14 AM Post #10 of 55


Quote:
ok, so we got the proprietary drivers, but no trace of "high precision"/"auto SR" modes or 250K FPGA..if anyone feels like playing the guinea pig
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Leeperry,
 
Does M-Audio Audiophile 192 have all the above? Do you think it's better to buy Audiophile 192 or Musiland Digital Times for digital output only (to external DAC Stello DA100)?
 
May 30, 2010 at 1:21 AM Post #11 of 55
www.datasheetdir.com/go-XC3S50A.pdf says that XC3S50A has 50K system gates and only 2 DCMs.
 
May 30, 2010 at 2:13 AM Post #12 of 55
I'm nowhere near an expert like glt(what's a DCM anyway?
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)...the only thing I can say is that over toslink my PCM1793/CS8414 Firestone Spitfire DAC glitches up if it doesn't get SPOT-ON sample rates...and I read some ppl saying in the Musiland topic that before those "high precision" drivers came up, the "44.1" indicator on their DAC simply wouldn't light up.
 
This problem has been explained thoroughly here on glt's blog: http://hifiduino.blogspot.com/2010/01/how-are-clocks-generated-in-musiland.html
 
so I've had those real world experiments:
 
-a card w/ a 48Mhz PLL that played 48kHz fine, but going 48>44.1 right away would give very glitchy sound for a few secs. Waiting a few secs before going 48 > 44.1 would only make a brief glitch before each song...and it'd do the same glitch for each 44.1 song anyway.
 
-a card w/ a 18Mhz PLL that plays 44.1 fine but 48/96 always give a slight "pop" before each song..the built-in clocking prolly takes a few milliseconds to reach 48/96000,00 ?
 
-a card w/ 2 clocks(one for 44.1, one for 48), that would always glitch up on all frequencies.
 
It's pretty obvious that I need a card w/ spot-on sample rates..the Musiland in "high precision" mode look like good candidates.
 
if you check the end of this paper, m2tech explains that many cards don't output spot-on sample rates and that you might have never heard your music at the right pitch...hence you've been listening to slightly out of tune instruments: http://www.m2tech.biz/public/pdf/White%20Paper%20on%20hiFace.pdf
 
now I think my DAC only has this problem over toslink, so coax might not "glitch" up...I've got two friends running a Spitfire in coax and they don't get any glitch, but one of them runs an hiface
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Leeperry, 
Does M-Audio Audiophile 192 have all the above?

 
The only thing I can say is that the Audiophile 24/96 PCI has 2 PLL's, and the USB version only one. the PCI is older I think(it's written in big on their PCB), not sure about the 192. But the musiland in "high precision" mode and the hiface seem hard to beat for spot-on sample rates.
 
May 30, 2010 at 2:47 AM Post #14 of 55
Leeperry,
 
Thanks for the info, very interesting! I am glad that Musiland fixed the problem with 44.1 Hz. However, I remember someone said that the RCA digital output in Musiland is only 50 Ohm (or 90?) instead of 75 Ohm. What to do about this problem? It's not so easy to fix it.
 
May 30, 2010 at 2:50 AM Post #15 of 55
check my link above on glt's blog, even the musiland fall short
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I wonder how the hiface would do....otherwise there's always the option of old RME/Lynx cards, these supposedly have killer clocking!
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