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Question

Started by johny ●September 5, 2003
Reply by johny ●September 9, 20032003-09-09
"Bernhard Holzmayer" <holzmayer.bernhard@deadspam.com> wrote in message
news:4768755.qu4maFuHSs@holzmayer.ifr.rt...

> > I have seen one PCI card that connect to 40 ADC/DAC box. It
> > follows ASIO2 and has a top latency of 2ms. It sales with a 10
> > ADC/DAC box, and cost about 400$.
> > http://www.zzounds.com/item--STODSP2000
> Fine, if the specs work for you.
> If 40 is your number, why not.
> If you think of pluggin 10 such PCI boards in your PC, this will
> certainly fail!



Hi, I just wanted to say that it is one PCI card, that has this cable in its
end, and this cable connects to a box that has 10  channels (full duplex
stereo 24bit 196Khz) and this ONE PCI can connect to 3 more boxes,
that sums up to 40 channels with only one PCI card (not 10 cards).
Reply by Jerry Avins ●September 10, 20032003-09-10
johny wrote:

> 
> "Bernhard Holzmayer" <holzmayer.bernhard@deadspam.com> wrote in message
> news:4768755.qu4maFuHSs@holzmayer.ifr.rt...
> > > I have seen one PCI card that connect to 40 ADC/DAC box. It
> > > follows ASIO2 and has a top latency of 2ms. It sales with a 10
> > > ADC/DAC box, and cost about 400$.
> > > http://www.zzounds.com/item--STODSP2000
> > Fine, if the specs work for you.
> > If 40 is your number, why not.
> > If you think of pluggin 10 such PCI boards in your PC, this will
> > certainly fail!
> 
> Hi, I just wanted to say that it is one PCI card, that has this cable in its
> end, and this cable connects to a box that has 10  channels (full duplex
> stereo 24bit 196Khz) and this ONE PCI can connect to 3 more boxes,
> that sums up to 40 channels with only one PCI card (not 10 cards).


Your 24-bit data might as well be 32-bit as far as transfer speed goes.
allowing for (probably not enough) overhead, call the data rate 200 Khz
per channel times 40 channels = 8 MHz through the PCI interface. IF
everything is done right and IF no other transfers get in the way, you
ought to be able to sustain that. 

Jerry
-- 
Engineering is the art of making what you want from things you can get.
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