How do Speakers Work?

Speakers convert electrical signals into sound, allowing us to hear audio from devices like phones, computers, and stereos. When an audio device sends an electrical signal to the speaker, it passes through a coil of wire called the voice coil, which is positioned within a magnetic field created by a magnet in the speaker.

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As the electrical signal flows through the voice coil, it creates a magnetic field that interacts with the magnet, causing the voice coil to move back and forth rapidly. This movement pushes and pulls a diaphragm, usually made of paper, plastic, or metal, which is attached to the voice coil. The diaphragm's vibrations push against the air around it, creating sound waves that travel to our ears and are perceived as sound.

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Speakers come in various sizes and designs to handle different frequencies of sound. For example, woofers are designed for low-frequency sounds (bass), while tweeters handle high-frequency sounds (treble). By combining different types of speakers, such as in a multi-speaker system, you can achieve a full range of sound that provides a richer and more immersive audio experience.