On Friday 23 November 2007 10:35, Bill Unruh wrote: > On Fri, 23 Nov 2007, Gene Heskett wrote: > >> On 2007.11.22 at 17:54:19 -0800, Darrell Bellerive wrote next: > >>> Also while the Audiophile 24/96 does sample at 96 KHz, the audio > >>> bandwidth of the card is limited to 22 Hz to 22 KHz +/- 0.4 dB. > Of course there is no aliasing problem at sampling at 96K and having the > frequency go up to 40K. There is an aliasing problem if you then > downconvert that to 48K or 44.1K but surely the downconverter should handle > that not the soundcard. Mind you why you want more than 22K I have no idea. > For sound sources, that is all that you can hear. (NOt me, my ears are old > and have trouble with 10K, but if you have little children they might > appreciate the extra few KHz, but probably not since they already have to > tune out that annoying 15.7KHz scream from the TV. I use the audio card as a spectrum analyzer for electronics work. By mixing radio frequency (RF) signals down to audio frequencies, one can look at a section of the RF spectrum. For some tests, the wider the bandwidth the better. Baudline, a great audio analyzer application, will handle sampling rates as high as 192 kHz. An analog channel that was flat from 0 Hz to 96 KHz would be wonderful. Not to mention a card with a very low noise floor, excellent dynamic range, and extremely low distortion. Now if only such a sound card existed . -- Darrell Bellerive ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
