In their words:
"Here is a list of tones that go from 8Hz all the way up to 22,000Hz. It’s fairly common for people who are over 25 years of age to not be able to hear above 15Hz, so this will help you find out where your high frequency hearing cuts off."
I'm at 17 kHz and working down from there one iPod-fuelled trip to the gym at a time.
(From Margaret)
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