| An electroacoustical analog for estimating sound pressure level at the tympanic membrane at high frequencies. | |
| | |
MedLine Citation:
|
PMID: 19355437 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
For various applications, it is useful to know the sound pressure level (SPL) at the tympanic membrane (TM). However, measuring the SPL close to the TM is not clinically feasible, due to safety and discomfort concerns. Therefore, it is desirable to estimate the SPL at the TM using measurements away from the TM. This is challenging at high frequencies where the effect of canal geometry becomes significant as the wavelength of the acoustical source becomes comparable to the dimensions of the canal. In this study, an electroacoustical analog was used to estimate the SPL at the TM for ten participants. The analog is comprised of a transducer (i.e., sound source), occluded ear canal, and the middle ear [Pascal et al. (1998)]. The ear model was optimized for each individual using a 2-parameter fit using real ear measurements further away in the canal. The optimization did not require inputs that may be difficult to obtain such as the exact canal geometry. A simulated transfer function was created and applied to each measured real-ear response to generate the estimated response at the TM. The model was verified using the SPL measured at the TM. |
| | |
Authors:
|
Janice L Lopresti; Karrie Recker; Tao Zhang |
Related Documents
:
|
16678387 - Reliability of speaking and maximum voice range measures in screening for dysphonia. 939967 - A method to correct adequately for the change in neuronal size when estimating neuronal... 3411037 - A technique for simulating the amplifier-to-eardrum transfer function of an in situ hea... 22567397 - Transgenic epigenetics: using transgenic organisms to examine epigenetic phenomena. 10688477 - The relationship between clinical and kinematic responses from human subject testing in... 15726087 - Development of cadaveric models of a thrower's shoulder. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: The Journal of the Acoustical Society of America Volume: 125 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2009 Apr |
Date Detail:
|
Created Date: 2009-04-09 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
|
Languages: eng Pagination: 2721 Citation Subset: IM |
Affiliation:
|
Knowles Electron.s LLC, 1151 Maplewood Dr. Itasca, IL 60143, janice.lopresti@knowles.comStarkey Lab., Inc., Eden Prairie, MN 55344. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Evidence for dynamic cochlear processing in otoacoustic emissions and behavior.
Next Document: Comparison of measurements at ambient pressure on clinical immittance and wideband acoustic transfer...