A narrow ear canal reduces sound velocity to create additional acoustic inputs in a microscale insect ear
نویسندگان
چکیده
منابع مشابه
Acoustic Immittance, Absorbance, and Reflectance in the Human Ear Canal.
Ear canal measurements of acoustic immittance (a term that groups impedance and its inverse, admittance) and the related quantities of acoustic reflectance and power absorbance have been used to assess auditory function and aid in the differential diagnosis of conductive hearing loss for over 50 years. The change in such quantities after stimulation of the acoustic reflex also has been used in ...
متن کاملAcoustic mechanisms that determine the ear-canal sound pressures generated by earphones.
In clinical measurements of hearing sensitivity, a given earphone is assumed to produce essentially the same sound-pressure level in all ears. However, recent measurements [Voss et al., Ear and Hearing (in press)] show that with some middle-ear pathologies, ear-canal sound pressures can deviate by as much as 35 dB from the normal-ear value; the deviations depend on the earphone, the middle-ear ...
متن کاملBilateral ear canal eruptive skin tags in an otherwise healthy young lady: a case report
Cutaneous skin tags are common skin growths, usually harmless, which protrude from the skin and may have a short, narrow stalk. Typically, they are the same color as the skin or a little darkerand appear mostly in the axilla, groin, and cervical area. In this report, we present a 30-year-old female with pedunculated and <spa...
متن کاملAir-Leak Effects on Ear-Canal Acoustic Absorbance
OBJECTIVE Accurate ear-canal acoustic measurements, such as wideband acoustic admittance, absorbance, and otoacoustic emissions, require that the measurement probe be tightly sealed in the ear canal. Air leaks can compromise the validity of the measurements, interfere with calibrations, and increase variability. There are no established procedures for determining the presence of air leaks or cr...
متن کاملEar Teratoma; a Case Report
Teratomas are tumors originated from mature or immature tissues. Teratomas are made up of one embryonic layer or all three embryonic layers (endoderm, mesoderm, or ectoderm). Herein we report a 41-year-old man who presented with vertigo, vomiting, and tinnitus. After physical examination, laboratory evaluation and performing computed tomography, cholesteatoma was diagnosed, however, during radi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2021
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.2017281118