> On Tuesday 04 April 2006 09:36, Erik Hofman wrote: >> Timothy Miller wrote: >> > On 4/3/06, Justin Findlay <[EMAIL PROTECTED]> wrote: >> >> I'd say more than 24, perhaps 32 bits per channel. >> > >> > Ok. I thought about saying 32, but I didn't want to look absurd. :) >> >> Internally you would have to use 32-bit floating point values, >> everything else will be obsolete rather soon. 24-bit D/A conversion >> would be nice and 32-bit D/A converters would be great. >> Or forget about an internal D/A converter all together and use digital >> output only. > There are problems associated with 32bit floating point signal processing > in > audio especially if you are trying to do DSP on the card. The easiest > example > of this is low freqency/high Q filtering which needs simultaneous use of > large and small values, something floating point is not good at. A double > precision 24bit fixed point DSP would be much better. You get a dynamic > range > of 288dB plus more predictable results from your algorithm.
What is "double précision 24 bits DSP" ? 32 bits flotting point unit use 24 bits mantissa. The precision is the same as a 24 bits fixed integer unit. So i don't understand you're point. Nicolas Boulay _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
