Re: Measuring dB levels of sounds produced by headphones

[Brad Ingrao <info@xxxxxxxxxxxxxx>]

Yashiko,

The ER 7c (http://www.etymotic.com/pro/er7c.asp) seems to be the ideal
microphone for this.  The probe tube would ensure that you are accounting
for the ear canal acoustics and you could run these into a DAT or CD
recorder if you want to save the stimulus, then direct the signal to a SLM
with an input.  Alternatively you could use a Real Ear System for hearing
aids, but your ability to record the ear canal output SPL would be very
limited.

_____________________________________
Best Regards,

Brad Ingrao, MSEd, CCC-A, FAAA
Editor
Email: info@xxxxxxxxxxxxxx
eden
The Electronic Deaf Education Network
A Virtual Community for Families of Deaf and Hard of Hearing Children
www.bradingrao.com







-----Original Message-----
From: AUDITORY Research in Auditory Perception
[mailto:AUDITORY@xxxxxxxxxxxxxxx] On Behalf Of Yoshiko Yamada
Sent: Wednesday, January 26, 2005 2:50 PM
To: AUDITORY@xxxxxxxxxxxxxxx
Subject: Measuring dB levels of sounds produced by headphones

Dear list members,

I'd like to measure the dB levels of stimulus sounds produced by
electrostatic headphones.  I'm interested in finding the dB levels that
individuals who are presented with stimuli through headphones experience.

Thank you in advance for your advice!

-Yoshiko

**************************************
Yoshiko Yamada
Department of Psychology
1227 University of Oregon
Eugene, OR 97403-1227
Phone: (541) 346-4882
Fax: (541) 346-4271
E-mail: yyamada@xxxxxxxxxxxxxxxxxxxx
**************************************