The philosopher Immanuel Kant to have said: “Not able to see off things. Can not hear, separates from the people. “He has judged the hearing as a social sense, which is perhaps more important than seeing. Our modern world is strongly influenced by visual stimuli. Hence the importance of hearing and also the performance of our ears today is often underestimated.


Already we can hear in the womb. No wonder that newborns can distinguish her mother’s voice from other voices before they are able to recognize her face. Day and night, are the ears constantly in use – for a lifetime. They do incredible: we can perceive extremely faint sounds. If we could just look good, we would see a 10-watt bulb or from 1,000 miles away. We hear a span of about 10 octaves – from 20 hertz to 16,000 hertz. The power of the eye meets only an octave. If the dynamic range of hearing it would be transferred to a weighing scale of this grain of sand could be up to the tractor weigh everything, without having to be switched. 1 The ear is the most sensitive and dynamic human sensory organ.

What does the ear every day for us:


The aural alert and warning. Phone ringing, door bells, bangs, shouts, thunder or horns can make us aware of dangers, especially in traffic.


The hearing supports the orientation in space. With closed eyes, we hear, whether we find ourselves in a large room or in a small room. As we hear with two ears, we can estimate the direction from which noise.

Language understanding by enabling:

Thanks to our hearing, we can learn to speak. With healthy hearing discussions are also under unfavorable conditions background noise, the phone line, echoing room possible.


On the ears, we take a lot of information on conversations, telephone, radio, television.

Moods transport

In conversations we hear more than just words. We also perceive the loudness, intonation, or pitch, and thus decipher the moods and feelings of the speaker, such as irony, surprise, aggression. Despite all the adults give priority to see that this was a study by Professor Vladimir Sloutsky, Ohio University. He was four years old and adults an image and played the same three notes. Later, this combination of image and tone sequence will be recognized. While all the adults focused exclusively on the right image, well-oriented half of the children (53 percent) mainly due to the sequence of notes.

Although they as a further test showed

Just as easily have been able to recognize immediately the correct picture. While adults rely on visual perception, children put the emphasis clearly on listening. The scientists assume that young children focus more on sounds, because they could not otherwise be able to learn to speak.