THERE IS NO SILENCE...ONLY DEAF - TopicsExpress



          

THERE IS NO SILENCE...ONLY DEAF EARS... ...................... The human range is commonly given as 20 to 20,000 Hz, though there is considerable variation between individuals, especially at high frequencies, and a gradual decline with age is considered normal. Sensitivity also varies with frequency, as shown by equal-loudness contours en.wikipedia.org/wiki/Hearing_range ............................... ............................. youtube/watch?v=2BAR248VRG0
Posted on: Wed, 17 Sep 2014 21:30:34 +0000

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