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Old 27th January 2010, 02:26 AM   #1
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Default New USB 2.0 Audio controller from VIA

VIA has launched industry first USB 2.0 Audio Controller with 24/192 goodness.
VIA Vinyl EnvyUSB 2.0 Audio Controller - VIA Technologies, Inc.

Any comment from our fellow audio engineers here?
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Old 27th January 2010, 04:45 PM   #2
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Website doesn't say what transfer mode this chip uses for USB or how clock jitter is managed. I've requested a datasheet so we'll see.

very interesting!
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Old 27th January 2010, 04:54 PM   #3
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Quote:
Originally Posted by mikechai View Post
VIA has launched industry first USB 2.0 Audio Controller with 24/192 goodness.
VIA Vinyl EnvyUSB 2.0 Audio Controller - VIA Technologies, Inc.

Any comment from our fellow audio engineers here?
Awesome. Will be curious to see if parts are available, and what the required driver support will be. Quite promising though.

Thanks for the info!
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Old 27th January 2010, 04:57 PM   #4
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Quote:
Originally Posted by Iain McNeill View Post
I've requested a datasheet so we'll see
Do let us know how that turns out. VIA have been fairly difficult in some of my past experience. I hope they are more forthcoming on this.
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Old 27th January 2010, 06:40 PM   #5
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Oh happy day, please do let us know how it turns out.
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Old 30th January 2010, 03:05 AM   #6
Chris_F is offline Chris_F  United States
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Does it support asynchronous transfer?
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Old 8th February 2010, 12:50 PM   #7
anbello is offline anbello  Italy
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cmedia has a similar solution
C-Media Electronics, Inc.
I hope that Micro$oft and some linux driver programmer wite usb audio class 2.0 driver.

ciao
andrea
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Old 8th February 2010, 01:12 PM   #8
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Well I got a product brief document from Via, it's confidential so I can't post it. But I can say that while it doesn't support asynchronous transfer, it does support 11 isochronous endpoints (5 in, 6 out) and a "feedback" endpoint which somehow guarantees lossless transfer.
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Old 8th February 2010, 05:09 PM   #9
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This is all *very* promising. Even more so now that I see C-media is also keeping up with technology. Not a surprise, their current chip is very widely used, almost as much as the TI solutions... (from what little I can tell).

I'm most interested to hear what the driver requirements are. Will these work with standard windows/linux/mac drivers (OS X "core" audio?) Or do they require custom drivers similar to high speed firewire solutions?

Anything about driver support in the VIA docs?

Thanks!
CK
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Old 9th February 2010, 08:25 AM   #10
Chris_F is offline Chris_F  United States
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Quote:
Originally Posted by Iain McNeill View Post
Well I got a product brief document from Via, it's confidential so I can't post it. But I can say that while it doesn't support asynchronous transfer, it does support 11 isochronous endpoints (5 in, 6 out) and a "feedback" endpoint which somehow guarantees lossless transfer.
Confidential? lol

Did they make you sign a NDA? If not, please post away.

Quote:
Originally Posted by anbello View Post
cmedia has a similar solution
C-Media Electronics, Inc.
I hope that Micro$oft and some linux driver programmer wite usb audio class 2.0 driver.

ciao
andrea
C-Media has had that info up for over a year, but I have yet to see any information that proves it actually exists. As far as I'm concerned it's the Lock Ness monster.

Last edited by Chris_F; 9th February 2010 at 08:27 AM.
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