On 4/6/06, Jack Carroll <[EMAIL PROTECTED]> wrote: > High speed Ethernet, or one of the other high-speed serial links, > breaks the dependencies between the expensive audio hardware and the > computer's interface standards. Besides getting the low-level analog > hardware out of the electrically noisy computer environment, it > future-proofs it. It cuts it loose from the constant standards churn in > PCs.
One guy said "no on-board processing needed". But if we use ethernet, no matter what protocol you use, the latency added is potentially a problem. In that case, we would need on-board processing. Do you agree? > BTW, there's no such thing as a 32-bit DAC or A/D. With > thermodynamic noise in the range of a microvolt for a low-impedance mike, > that would require a full-scale signal level of +/-2148 volts. Aside from > that, physical components aren't stable enough for much over 20-bit > accuracy. What might make sense is floating poing with a 24-bit mantissa > and an 8-bit exponent; that would avoid the need to adjust levels during > mike check; it would facilitate automatic level control without sacrificing > dynamics. If the best you can do at max volume is 20-bit, what does it matter that you're down to 19-bits at 50% volume? Your lowest bit is still at your noise threshold no matter what. What I think might be good is to have 24-bit samples but only a 20-bit DAC. If your recording level was too low, you could bump it up by four bits before losing dynamic levels. Of course, that requires a 24-bit ADC, which is a whole other problem. :) _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
