November 2007
Intermediate to advanced
736 pages
46h 32m
English
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AUDIOMETRY
Audiometry is the general term applied to a number of tests used to measure hearing.
An audiometer is an essential instrument for conducting most audiometric tests. The audiometer is basically a device that generates pure tones of known level and frequency, and delivers these to the patient through either a headphone or a bone conduction vibrator.
On an audiometer, the levels are given as Hearing Level, dB (HL). In this way, a normal hearing person will be able to hear tones at and above a 0 dB HL level.
Since these levels are average levels measured in a standard coupler, the actual sound levels at the patient's eardrum can differ considerably. One might expect up to as much as 15 dB individual deviation from the average.
Instead ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.