TPA - USB Transport - Page 2

Russ White · 27th October 2010, 02:59 PM

It will handle PCM(I2S) and SPDIF output too.

labjr · 27th October 2010, 03:37 PM

Well, I hope it's an I2S interface first and foremost. I wish the industry would retire S/PDIF.

Russ White · 27th October 2010, 03:43 PM

Quote:

Originally Posted by labjr

Well, I hope it's an I2S interface first and foremost. I wish the industry would retire S/PDIF.

There is no compromise on the module to support both.

Just use the one that suits your application best.

Nikola Krivorov · 27th October 2010, 04:12 PM

Quote:

Originally Posted by labjr

Who said anything about S/PDIF? I thought the module was for the Buffalo DAC.

Well, no one ever said anything about it actually, that's why I was hoping Russ would show a picture to us (referred to as "the kids") so we get an idea on how big it is as most of the people with Buffalo IIs have already assembled their boards and will have to rearrange them.

Russ White · 27th October 2010, 04:14 PM

The current plan is to try to make it the same size at the Buffalo module.

Nikola Krivorov · 27th October 2010, 04:19 PM

Thanks so much!

LeonvB · 27th October 2010, 06:01 PM

How could we combine this board with more traditional inputs like the Mux?
Should an Otto be used to switch between a Mux and the USB input? If so, can we expect the AC2 in the same timeframe to provide an easy switching capability? Or will a new module provide I2S passthrough/multiple SPDIF ports?

Russ White · 27th October 2010, 06:50 PM

Those are two separate concerns. The USB module is simply that. USB in -> SPDIF/PCM out.

The OTTO will work to switch two I2S sources.

You could also use the SPDIF from the USB module into the MUX.

There is something else I am working on too, but it is too early to talk about it.

Cheers!
Russ

LeonvB · 27th October 2010, 07:02 PM

Quote:

The OTTO will work, and there is something else I am working on too, but it is too early to talk about it.

Ok, I was thinking about getting something like an Arduino/AC2 to connect a display, set the Mux & Otto to the right settings using fi. a five position switch and control volume with a rotary control and/or IR input. And perhaps even create a 12V trigger for my amp.
That would really finish my DAC

ichiban · 27th October 2010, 07:40 PM

Russ,
Have you considered incorporating an ADuM4160 USB Isolator as a front end?
I've used that ahead of a Musiland USB to SP/DIF into my SABRE and
noticed an improvement in sonics.

27th October 2010, 02:59 PM	#11
Russ White diyAudio Member Join Date: Jan 2005 Location: Nashville, TN, USA	It will handle PCM(I2S) and SPDIF output too. __________________ Less pulp more juice Twisted Pear Audio.

27th October 2010, 04:14 PM	#15
Russ White diyAudio Member Join Date: Jan 2005 Location: Nashville, TN, USA	The current plan is to try to make it the same size at the Buffalo module. __________________ Less pulp more juice Twisted Pear Audio.

27th October 2010, 06:50 PM	#18
Russ White diyAudio Member Join Date: Jan 2005 Location: Nashville, TN, USA	Those are two separate concerns. The USB module is simply that. USB in -> SPDIF/PCM out. The OTTO will work to switch two I2S sources. You could also use the SPDIF from the USB module into the MUX. There is something else I am working on too, but it is too early to talk about it. Cheers! Russ __________________ Less pulp more juice Twisted Pear Audio.

27th October 2010, 07:40 PM	#20
ichiban space charged diyAudio Member Join Date: Oct 2004 Location: WNY	Russ, Have you considered incorporating an ADuM4160 USB Isolator as a front end? I've used that ahead of a Musiland USB to SP/DIF into my SABRE and noticed an improvement in sonics. __________________

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27th October 2010, 03:37 PM	#12
labjr diyAudio Member Join Date: Apr 2003 Location: MA	Well, I hope it's an I2S interface first and foremost. I wish the industry would retire S/PDIF.

27th October 2010, 04:19 PM	#16
Nikola Krivorov diyAudio Member Join Date: Apr 2008	Thanks so much!

27th October 2010, 06:01 PM	#17
LeonvB diyAudio Member Join Date: May 2010 Location: Netherlands	How could we combine this board with more traditional inputs like the Mux? Should an Otto be used to switch between a Mux and the USB input? If so, can we expect the AC2 in the same timeframe to provide an easy switching capability? Or will a new module provide I2S passthrough/multiple SPDIF ports?

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