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.
High quality A/D converters are going to be the single most important thing you can offer in a pro-audio product. Your card could be the best when it comes to signal processing and have the best effects but if the converters aren't up to scratch you will miss the biggest market for the card, the project studio/pro studio market. Just my €0.02, Paul Mullen > > Erik _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
