TPA - USB Transport - Page 11

Russ White · 10th November 2010, 05:46 PM

Quote:

Originally Posted by LeonvB

Windows 7 64-bit?

Yes:

XP, Vista, 7

32 and 64 bit.

dwk123 · 10th November 2010, 07:02 PM

Quote:

Originally Posted by Russ White

It will not be the same firmware. It will be optimized firmware and hardware.

It will work on Linux if there is a driver that support USB audio device 2.0.

I simply have not checked into that yet as I will be using it with only mac and windows in the near future.

Ah, sorry for the confusion. I believe that the Linux ALSA driver is now USB Class 2 compliant, which is what I'll verify with the stock xmos board. There are reports of success with xmos as well as the Ayre QB-9 in async mode, so it seems likely to be OK.

I'm planning on getting an TP USB board when available for use under Linux as well and will report on that, but if history is any indication assuming that one will get in on the 'ground floor' of a desirable TP offering can be a poor bet :-)

Hercules · 15th November 2010, 10:54 AM

Hi Russ:

is it possible to output DSD from computer DSD file?

LeonvB · 15th November 2010, 05:06 PM

DSD? That would be nice to have.

lwif · 17th November 2010, 12:35 PM

Hi Russ,

In a previous post you said the usb module will do stereo for the first rev ?
Does it mean that the first rev board will be upgradeable later to do multi channels or is it planed for another board ? That is, will we need new firmware for the usb xmos module or a new module ?
I am following my idea to go bi amplification or tri amplification with two or three boards. Does the usb module will be able to drive two boards (i think since it is possible to put two buffalo boards in parallel for one i2s) and what about three boards ?
Ok, the most important point is how to achieve bi amplification or tri amplification.
Thanks for your attention.

Lwi

SunRa · 17th November 2010, 04:25 PM

Hello,

This usb board is great news! I look forward to the outcome.

I would have a question though. Could you please give some details regarding the isolation method? I know there are several discussions regarding isolating usb on various threads here on diyaudio, but no viable solution emerged. Can you share some details?

Thanks and good luck with the development.

Marek · 19th November 2010, 09:11 AM

Hi,

Russ, is it possible to integrate with your USB transport a Bluetooth sound gateway (like in new home cinema amplituners) using 1$ Bluetooth USB dongle available on ebay? - so we'll able tu use Buffalo DAC wireless!

Marek

P.S.With Bluetooth there is total galvanic isolation

regiregi22 · 19th November 2010, 10:22 AM

I have seen an adapter that allows you to transport USB over Ethernet, transparent for the end devices (they see it as only an usb cable), so there should be similar solutions for bluetooth or wifi.

What scared me is the lowish data rate for bluetooth. Anybody knows what is the maximum data rate in an standard enviroment? I am not meaning in theory, but in practice.

Regards,
Regi

Marek · 19th November 2010, 01:25 PM

Popular Bluetooth v2.0 +EDR allow 3mbit/s which is sufficient for Red Book, hi-res tracks will require Bluetooth v3.0 (up to 24mbit/s).
Bluetooth - Wikipedia, the free encyclopedia

labjr · 19th November 2010, 02:06 PM

The future is coming next year and it's Light Peak. Up 10GB/sec to start. Total isolation using fiber optic. Cable Lengths up to 100m. Ideal for digital audio.

19th November 2010, 09:11 AM	#107
Marek diyAudio Member Join Date: Apr 2003 Location: Katowice	Bluetooth usb dongle Hi, Russ, is it possible to integrate with your USB transport a Bluetooth sound gateway (like in new home cinema amplituners) using 1$ Bluetooth USB dongle available on ebay? - so we'll able tu use Buffalo DAC wireless! Marek P.S.With Bluetooth there is total galvanic isolation

19th November 2010, 10:22 AM	#108
regiregi22 diyAudio Member Join Date: May 2009 Location: Madrid (Spain)	I have seen an adapter that allows you to transport USB over Ethernet, transparent for the end devices (they see it as only an usb cable), so there should be similar solutions for bluetooth or wifi. What scared me is the lowish data rate for bluetooth. Anybody knows what is the maximum data rate in an standard enviroment? I am not meaning in theory, but in practice. Regards, Regi __________________ diyAudio, doing it as big as you can, JUST BECAUSE WE CAN!

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15th November 2010, 10:54 AM	#103
Hercules diyAudio Member Join Date: Dec 2003 Location: Hong Kong	Hi Russ: is it possible to output DSD from computer DSD file?

15th November 2010, 05:06 PM	#104
LeonvB diyAudio Member Join Date: May 2010 Location: Netherlands	DSD? That would be nice to have.

17th November 2010, 12:35 PM	#105
lwif diyAudio Member Join Date: Dec 2009	Hi Russ, In a previous post you said the usb module will do stereo for the first rev ? Does it mean that the first rev board will be upgradeable later to do multi channels or is it planed for another board ? That is, will we need new firmware for the usb xmos module or a new module ? I am following my idea to go bi amplification or tri amplification with two or three boards. Does the usb module will be able to drive two boards (i think since it is possible to put two buffalo boards in parallel for one i2s) and what about three boards ? Ok, the most important point is how to achieve bi amplification or tri amplification. Thanks for your attention. Lwi

17th November 2010, 04:25 PM	#106
SunRa diyAudio Member Join Date: Aug 2004 Location: Romania	Hello, This usb board is great news! I look forward to the outcome. I would have a question though. Could you please give some details regarding the isolation method? I know there are several discussions regarding isolating usb on various threads here on diyaudio, but no viable solution emerged. Can you share some details? Thanks and good luck with the development.

19th November 2010, 01:25 PM	#109
Marek diyAudio Member Join Date: Apr 2003 Location: Katowice	Popular Bluetooth v2.0 +EDR allow 3mbit/s which is sufficient for Red Book, hi-res tracks will require Bluetooth v3.0 (up to 24mbit/s). Bluetooth - Wikipedia, the free encyclopedia

19th November 2010, 02:06 PM	#110
labjr diyAudio Member Join Date: Apr 2003 Location: MA	The future is coming next year and it's Light Peak. Up 10GB/sec to start. Total isolation using fiber optic. Cable Lengths up to 100m. Ideal for digital audio.