Cavity pressure method for measuring the gain of hearing aids
نویسندگان
چکیده
منابع مشابه
Cavity pressure method for measuring the gain of hearing aids.
'I A cavity pressure method for measuring t he gain of hearing aids has been--developed. It has the advantage of req uiring no " dead " room, allo~ing a compact setup. The method has been investigated as to its validity and t he degree to which diffraction effects are avoided. Comparisons with free-field data are made. The applicability of results obtained by this method to t he specifi cation ...
متن کاملGain, frequency response, and maximum output requirements for hearing aids.
This article applies the gain and frequency response and maximum output selection procedures currently recommended by the National Acoustic Laboratories (NAL) of Australia to the audiograms of a representative group of adult and child clients of Australian Hearing Services (AHS) to specify the performance that is required of various types of hearing aids in order to ensure that they can provide...
متن کاملUsing trainable hearing aids to examine real-world preferred gain.
BACKGROUND While there have been many studies of real-world preferred hearing aid gain, few data are available from participants using hearing aids with today's special features activated. Moreover, only limited data have been collected regarding preferred gain for individuals using trainable hearing aids. PURPOSE To determine whether real-world preferred hearing aid gain with trainable moder...
متن کاملMethod for measuring the Raman gain tensor in optical fibers
We present a technique to measure the tensor components of the Raman gain spectrum in a short piece of optical fiber. Using this approach, we obtain results for the frequency dependence of the Raman gain tensor in a silica-based fiber for Raman shifts from less than 1 to over 15 THz. We compare these data with measurements of spontaneous Raman scattering in bulk silica and find good agreement f...
متن کاملstudy of cohesive devices in the textbook of english for the students of apsychology by rastegarpour
this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
ذخیره 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: Journal of Research of the National Bureau of Standards
سال: 1948
ISSN: 0091-0635
DOI: 10.6028/jres.040.044