Tekniska Museet
100 Innovations - Tekniska museet

An exhibition at the National Museum of Science and Technology in Stockholm, 2012 – 2018

The loadspeaker

The loudspeaker

Ingress för att beskriva innovationen

The loadspeaker

What is Tage listening to? Could it be his mistress’ voice coming out of the funnel speaker? Photo: Ellinor Algin.

The loudspeaker

This computer loudspeaker is from the Photo department at the National Museum of Science and Technology. Photo: Ellinor Algin.

Kort fakta om innovationen

Kort fakta (2) om innovationen

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The loadspeakers

Sound consists of waves. When a sound wave reaches the ear the eardrum vibrates. The vibrations spread to the inner ear where they are converted into electrical signals. The electrical signals then go into the brain through the auditory nerve and this is when we perceive sound.

A loudspeaker is part of a sound system that converts electrical signals into sound waves and audible sound. The loudspeaker was part of Alexander Graham Bell´s patent on the first telephone in 1876.
Loudspeakers create sound by setting a thin skin, a membrane, into motion. When the membrane moves forwards the air is compressed and when it moves backwards it thins out. The movement produces sound waves, the stronger the vibrations the louder the sound gets.

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