Hi Sampo - the use I have in mind is not really anything to do with ambisonics - rather I just want a reasonbly good quality 8 channel soundcard to run an eight channel sound installation on . At the moment I am using motu ultralites in a couple of permanent sound installations but it seems like overkill with all the preamps etc that will never be used.From the sound of it the ESI gigaport would be good enough quality - I am a bit wary of some of the really cheap ones. For anything more than 8 channels I use adat.
On 6 April 2014 03:38, Sampo Syreeni <[email protected]> wrote: > On 2014-04-06, Augustine Leudar wrote: > > Can you do this with any 7.1 usb card ? Wich did you use ? >> > > Well now you opened a can of worms even on my behalf. What really is the > minimal, asymptotic per-channel cost of well-synchronized multichannel > audio D/A? Let's say, presuming you can only draw whatever power you can > from an USB3 port, or a PoE enabled Gigabit Ethernet one? Then presupposing > at least CD level 98dB (linear unfiltered SPL) S/N for any outbound signal > is required? How many outbound analog, balanced connections could you > honestly claim to be able to do, at the standard levels? And once you got > that, what's the cost-against-number-of-chn curve? What's the curve against > diminishing voltage, assuming as little output current as you can achieve > over our outputs in average? How would you achieve the optimum scaling > using extant mass-produced, mutually syncronizable to > sampling-time-accurate D/A-chips at your disposal? Which were the chips > precisely which you would utilize? Are they really the cheapest out there > even taking into account the external components they require in order to > function properly, and how/why do they scale out/in-parallel? > > Seriously, guys, this is like the Grail of low cost ambisonic on the > hardware side. Right now we can do first order at four hifi outputs, but > quite likely we can't even do eight for second order. Simply forget about > third or fourth order using any current standard interconnect, either > because you can't get the data across, or because nobody likes an > extraneous transformer for something like this. > > So if we do it as compatibly and harmlessly and most efficiently as we > can, all round, where're connector count, power and datarate curves per > dollar, here? > -- > Sampo Syreeni, aka decoy - [email protected], http://decoy.iki.fi/front > +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 > > _______________________________________________ > Sursound mailing list > [email protected] > https://mail.music.vt.edu/mailman/listinfo/sursound > -- 07812675974 -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20140412/ce7be322/attachment.html> _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
