Subject: Re: tympanometry probe tone level? From: Navid Shahnaz <nshahnaz@xxxxxxxx> Date: Thu, 31 Aug 2006 08:47:42 -0700Hi It depends on the probe tone frequency and it is usually set at a level below the level the elicit the aural reflex. It varies a bit between manufacturer; however, it is close the the following values. 226 Hz @xxxxxxxx 85dB SPL ± 1.5dB 1000 Hz (a probe tone frequency of choice for infant assessment) @xxxxxxxx 75dB SPL ± 1.5dB Hope this helps. Best Navid ------------------------------- Navid Shahnaz, Ph.D Assistant Professor School of Audiology & Speech Sciences Faculty of Medicine 5804 Fairview Ave. Vancouver, B.C. V6t 1Z3 Canada Tel. 604-822-5953 Fax. 604-822-6569 E-mail: nshahnaz@xxxxxxxx Website: http://www.audiospeech.ubc.ca/school/faculty/navid/ ---------- Original Message ---------------------------------- From: "Ferguson, Sarah Hargus" <safergus@xxxxxxxx> Reply-To: "Ferguson, Sarah Hargus" <safergus@xxxxxxxx> Date: Thu, 31 Aug 2006 10:08:03 -0500 >Hello list! Students ask the darnedest questions. Today in Intro to >Audiology, one of the students asked what the presentation level is for >the probe tone used in tympanometry. I didn't find it in a quick Google >search (not even a manufacturers' specs I looked at) or during a quick >peek in a classic audiology textbook - perhaps someone out there knows >off-hand what it is? > >~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ >Sarah Hargus Ferguson, Ph.D., CCC-A >Assistant Professor >Department of Speech-Language-Hearing: Sciences and Disorders >University of Kansas >Dole Center >1000 Sunnyside Ave., Room 3001 >Lawrence, KS 66045 >office: (785)864-1116 >Speech Acoustics and Perception Lab: (785)864-0610 >http://www.ku.edu/~splh/ipcd/Faculty/FergusonBio.html > ________________________________________________________________ Sent via the WebMail system at audiospeech.ubc.ca