Re: Ultrasound playback setup (from Raimund Specht)

[Charlie Escher <>]

<blockquote style="border-left: #0000FF solid 0.1em; margin-left: 0.0em; 
padding-left: 1.0em"><pre>From: [EMAIL PROTECTED] (Raimund Specht)
 Subject: Re: Ultrasound playback setup
 
 Recently, several relatively inexpensive sound cards supporting playback
 rates of up to 192 kHz (new DVD audio standard) appeared on the market:
 
 Audiotrak Prodigy 192 : <a  href="http://www.audiotrak.net/eng/prodigy.html"; 
rel="nofollow">http://www.audiotrak.net/eng/prodigy.html</a>
 SoundBlaster Audigy 2 : <a  
href="http://www.soundblaster.com/products/audigy2"; 
rel="nofollow">http://www.soundblaster.com/products/audigy2</a>
 </blockquote>
 Note that both of these sound cards are playback-only at 192kHz. They 
 are both limited to a 96kHz recording sample rate(per the specifications 
 I found via the above links), and are bandwidth limited to ~46kHz -3dB 
 rating for recording. There are a number of audio cards that use 
 brickwall filtering to limit high frequency response before the Nyquist 
 cutoff is reached, so be sure to read the specs carefully.<br>
 --<br>
 Charlie Escher<br>
 Sr. Electronics Technician<br>
 Fisheries Engineering Team<br>
 MEVATEC Corp.<br>
 P.O. Box 40<br>
 North Bonneville, WA 98639<br>
 -OR-<br>
 458 Evergreen Drive<br>
 North Bonneville, WA 98639<br>
 <br>
 (509) 427-8570 x18<br>
 <br>