On Wed, 2006-04-05 at 08:16 -0400, Timothy Miller wrote: > I'm more concerned about noise and oscillations. I think you're right > that a simple reflection over less than a centimeter won't be a > problem for us. If we can tri-state the transmitter, and the receiver > has sufficiently high impedence, I don't see why we couldn't connect > them in pairs to let software select the direction. Only the > transmitter needs to be switched off, while we'll just ignore the > receiver when we're transmitting. > > How do you tri-state an analog signal without distorting it? Just > cutting power to the opamp probably isn't enough because of whatever > will happen to the analog signal when it goes into the output of an > opamp.
No this isn't a good idea (IMHO), what about a VCA ? > > > > USB wouldn't have enough bandwidth for so many channels at once. > > > Sure, there's lots of kinds of processing where the data would never > > > leave the card, but in many cases, you're going to be shipping data > > > back and forth with the application. You need high bandwidth for > > > that, and even PCI might not be quite fast enough if all channels are > > > uncompressed. > > > > > > ? > > > > I make 192kHz x 24bits to be 4608000 bits per second. Sixty channels of > > that is 276.48 Mb/s. All of USB2, 1394 and gigabit ethernet are capable of > > that. The trick is probably getting the latency down. > > I see your point. We're going to have some sort of latency anyhow due > to the external box, though. 60 channel at > 100 Mb ...I don't think there are really problems for latency. we are talking about time ~ 10^-5 s > _______________________________________________ > Open-graphics mailing list > [email protected] > http://lists.duskglow.com/mailman/listinfo/open-graphics > List service provided by Duskglow Consulting, LLC (www.duskglow.com) -- Pluralitas non est ponenda sine neccesitate Frustra fit per plura quod potest fieri per pauciora Entia non sunt multiplicanda praeter necessitatem Occam's Razor MiChele Carla` aKa Goldfinger <[EMAIL PROTECTED]> _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
