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Hearing Range

[toggle title="Hearing Range"]

[/ toggle] [toggle title = "Hearing Range"]
The extent of hearing is the range of frequencies that a person or animal can hear.

  • Humans: 20 Hz - 20 000 Hz (significant variation occurs between people). People can also feel inaudible sound waves by physical vibrations (4 to 16 Hz)(depending on age and race)
  • Dogs: 40 Hz - 60 000 Hz 
  • Cat: 45 Hz - 64 000 Hz
  • Bats: 20 Hz - 120 000 Hz
  • Mouse: 1000 Hz - 91 000 Hz
  • Dolphins: 0.25 Hz - 150 000 Hz
  • Sonic - 20 Hz - 20 000 Hz - the extent that people can hear
  • Ultrasonic - up to 90 000 Hz - dogs, bats and mice
  • Infrasonic - from 0.25 Hz - snakes, whales and dolphins

[/ toggle] [toggle title = "Hearing Loss Demographics "]

  • The WHO estimates that there are 360 ​​million people worldwide hearing loss. Of these, 328 million adults and 32 million children. It involves more than 5% of the population
  • In 1998 it was found that 4 million South Africans suffered from hearing loss
  • About 10 million people in the UK are deaf or have severe hearing loss. It is one in seven people of the population (Source: Deafness Research UK). It is predicted that by 2015 there will be 14.5 million people with hearing loss
  • Hearing loss affects one out of every six Australians. This means a total of approximately 3.55 million people. Three out of four Australians over the age of 70 suffered an hearing loss
  • One in ten Americans has hearing loss. It is more than 28 million people. A study has shown that 65% of people with hearing loss are retarded
  • In the EU about 55 million people between the ages of 18 and 80 suffer from hearing loss
  • In North America, the number is estimated at 35 million

[/ toggle] [toggle title = "Hearing & Hearing Loss Quotes"]

  • The sense of audience is connected to the heart. Therefore, audio (speech and music) affects us directly (Katherine Le Mee)
  • Forgive me when you see that I withdraw while I would like to chat with you. My disability is double sad for me. I have to be alone, like someone who has been expelled. When I get close to people, I get anxious. I feel that someone may notice my condition. How humiliating when someone can hear me a whistle or a sheepdog who sings and I hear nothing! Such things make me desperate and could drive me easily to end my life. It was just my art that turned me away (Ludwig von Beethoven)
  • We spend one third of our lives with closed eyes because we sleep. This is about twenty years. In any second of those twenty years, your ears can command your eyes to open and search for the origin of a sound. When our eyes are open, our ears can still hear through walls and wherever the eyes can not see, and still ask the eyes to seek the sound (Jim S Davis II)
  • If I could only have one of my senses, I would choose to listen. Then I would not feel so alone (Helen Keller)
  • The easiest way to break your loved one's resistance to hearing aids is to stop his ears (Dr Richard Carmen)
  • You must hear what you do not want to hear in order to know what you do not want to hear (Dr Gustav Mueller)
  • When someone in the family has a hearing loss, the whole family has hearing loss (Mark Ross PHD)
  • My wife says I have hearing loss. That's what I think she said (Anonymous)
  • Blindness separates us from things but deafness separates us from people (Helen Keller)
  • Hearing loss is a bit terrible because it can not be restored (Pete Townshend of The Who)
  • Additional listening device is like eye sighters (Dr Cynthia Compton Connelly)
  • All the sounds of the earth are like music (Oscar Hammerstein II)
  • We should hear at least one song every day, read a good poem, see a beautiful picture and speak some meaningful words (Johann Wolfgang von Goethe)
  • An unhandled hearing loss is much more visible than hearing aids (Dr Sergei Kochkin)[/ toggle] [/ accordion]