Ovidiu;578115 Wrote: 
> John, I also own the V-DAC which, by-the-way ;) is 192/24 capable...
> Right now I run it through the coax. Do you think connecting it through
> USB as described would circumvent some of the problems still staying in
> the way of playing 192/24 through the Touch? (that you mentioned in
> another thread 
> http://forums.slimdevices.com/showpost.php?p=512393&postcount=9)
> 
> If so, what would be the steps to be taken?
> 
> Thanks for so many interesting thoughts in this forum.
> Ovidiu

Hm, thats going to be tough. It depends on HOW the DAC implements 192.
IF it uses a custom driver its not going to work. IF it uses USB audio
class 2 its not going to work (the version of ALSA in the Touch just
has audio class 1 not 2). The only way it could work is if the DAC uses
high speed bus mode and uses audio class 1 protocol. This will actually
work, but is not officially anything. 

Audio class 1 does not specifiy high speed mode and does not officially
support 192 but the way the ALSA driver were written its perfectly happy
using high speed mode. The class 1 protocol does not explicitly  support
192, but it doesn't preclude it either. If the hardware sets the values
right for 192 it will actually work. Unfortunately I don't know of any
hardware that actually works this way, SO, the probability of this
working is pretty low. 

If Logitech would switch to the latest ALSA that DOES have support for
audio class 2 so a DAC designed to work with that would work. But I
don't see Logitech doing that any time soon. 

John S.


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