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[AUD] Richard Rutkowski: Near-field speakers for animal studies

Dear List -

Can anyone help with this request concerning near-field speakers for
use with rats?


-- DAn Ellis <dpwe@ee.columbia.edu> http://www.ee.columbia.edu/~dpwe/
   Dept. of Elec. Eng., Columbia University, New York NY 10027 (212)854-8928

------- Forwarded Message
Date: Tue, 02 Jan 2001 13:04:10 +0000
From: Richard Rutkowski <Richard@IHR.MRC.AC.UK>

Dear all,

I am seeking advice regarding the use of speakers in the near field
i.e.  about 1-3 mm from an animal's (rat) ear canal and was wondering
what the best type of speaker would be for this situation.  Ideally,
the speaker should produce levels of around 80-90dB SPL across a
frequency range that goes up to about 45 kHz and should have a
diameter of around 2 inches.  I'd be really grateful for any
recommendations/manufacturers names.  I'd also be grateful for advice
on the best way to calibrate such speakers using TDT system 2.

Many Thanks,
Richard Rutkowski.

MRC Institute of Hearing Research
University Park, Nottingham, NG7 2RD, U.K.

Email: richard@ihr.mrc.ac.uk
Telephone: +44 (0)115 922 3431    Direct Line: +44 (0)115 951 8508 x371
Fax:  +44 (0)115 951 8503
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