Dear list,
I am helping a colleague calibrate his ABR
/ DPOAE system for testing auditory function in mice. His
sound delivery and recording system includes Tucker Davis EC1
speakers, which are coupled to an Etymotic ER10B probe
microphone system. Recently, I measured the frequency response
of the system with a Larson Davis microphone that is rated out
to 100 kHz. When I remove the ER10B, the output of the
speakers matches the expected frequency response based on
TDT’s specifications. When the ER10B is in place, the system
output rolls off above 10 kHz. Etymotic designed the ER10B for
testing in humans, and it is rated out to 10 kHz; however, I
have been made aware of several publications that used this
probe for testing in mice. Have any of you successfully
coupled EC1 speakers to an ER10B probe and achieved a flat
frequency response out to 32 kHz? If so, I am hoping you will
share some insights you have on achieving such a frequency
response with this system.
Sincerely,
Skyler
--
Skyler G.
Jennings, Ph.D., Au.D. CCC-A
Assistant
Professor
Department of
Communication Sciences and Disorders
College of
Health University of Utah
390 South 1530
East
Suite 1201 BEHS
Salt Lake City,
UT 84112
801-581-6877
(phone)
801-581-7955
(fax)
skyler.jennings@xxxxxxxxxxxx