来自MSN1 个月
Find out how old your ears are with doctor's quick at-home hearing test
A doctor has shared a quick test that reveals how old your ears are based on the highest frequency you can hear. Humans can hear a frequency of between 20 and 20,000 hertz (Hz), although most can ...
BBC2 年
The human ear and sound waves
A dog training whistle makes sound waves that have a frequency of 40,000 Hz. Dogs ears can detect the sound, humans can’t because the frequency is above 20 kHz. In 2005, Howard Stapleton from ...
How old are YOUR ears? 30-second hearing age check can tell if you're losing your hearing early
The frequency of ... such as this 30 second test to check your hearing regularly and pick up on any abnormal changes. 'Safe ...
Here’s how Apple’s AirPods Pro hearing assistance stacks up to professional results
So how good are the AirPods Pro 2 as OTC hearing aids? To find out, I looked at two key performance criteria: the accuracy of ...
News Medical3 天
e3 Diagnostics' MI 44 MAICO Middle Ear Analyzer
The value of the MI 44 is in its flexibility to perform a range of diagnostic testing in both manual and automatic modes, and test ... ear as well as 2 tympanograms (one at 226 Hz and one high ...