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RE: Ultrasound playback setup

Subject: RE: Ultrasound playback setup
From: ONeill, William <>
Date: Thu, 13 Feb 2003 16:05:48 -0800
Another possibility that's somewhat more expensive, but with greater
 bandwidth, is a "Bioacoustics Workstation" package from Tucker-Davis
 Technologies (TDT).  The workstation is based on their RP2.1 signal
 processor, which uses a 50 MHz Sharc DSP, has two A/D channels and two
 Sigma/Delta D/A channels, a recording/playback bandwidth of about 90 kHz,
 and a 110 dB S/N ratio.  The equipment interfaces with a PC (workstation or
 laptop) via USB, and is programmed directly with a graphical interface much
 like Labview (RPvds).  The devices can also be controlled with Active-X via
 Matlab, Delphi, Visual C++, etc.
 <a  href=""; 
 TDT equipment is widely used in the field of auditory neurophysiology and
 psychacoustics.  We use it in our lab for studies on bat audition, and one
 of my former students with extensive experience in ultrasound (Willard
 Wilson) works for them as a development engineer.
 William E. O'Neill, Ph.D.
 Bat Auditory Research Lab
 Dept. of Neurobiology & Anatomy
 Univ. of Rochester Sch. of Med. and Dent.
 Rochester, NY 14642-8603 USA
 Phone: (585) 275-4023
 FAX: (585) 756-5334
 > -----Original Message-----
 > From: Dave Mellinger [<a  href="[EMAIL PROTECTED]" 
 > rel="nofollow">[EMAIL PROTECTED]</a>]
 > Sent: Monday, February 10, 2003 6:57 PM
 > Subject: Ultrasound playback setup (from Raimund Specht)
 > 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=""; 
 > rel="nofollow"></a>
 > SoundBlaster Audigy 2 : <a  
 > href=""; 
 > rel="nofollow"></a>
 > A suitable amplifier would be the TEAC A-H300 stereo 
 > amplifier. Its frequency
 > range goes up to 80 kHz: 
 > <a  href=""; 
 > rel="nofollow"></a> (go to "AMPS"
 > and "Stereo Amplifier A-H300"). If you need a more compact 
 > and portable
 > device, the Avisoft Bioacoustics ultrasound amplifier would 
 > be a better
 > choice. That device is powered either by a 5 V or 12 ...36 V DC power
 > source and has an integrated over-modulation (clipping) 
 > indicator in order
 > to prevent distortion. Detailed specifications will be available at
 > in a few days.
 > An appropriate dynamic speaker that covers the frequency 
 > range from 1 to 70
 > kHz is also available from Avisoft Bioacoustics. It is compact
 > (80*120*65mm), rugged (aluminium housing and SPEAKON 
 > connector) and can
 > produce high sound levels. In fact, the frequency range goes 
 > beyond 70 kHz,
 > but the sound levels at these frequencies will be lower. See also
 > <a  href=""; 
 > rel="nofollow"></a>.
 > Regards,
 > Raimund
 > ----------------------------------------------
 > Raimund Specht
 > Hauptstr. 52
 > 13158 Berlin
 > Germany
 > phone/fax : +49 30 9163758
 > ----------------------------------------------

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