A very important device in the audio system is the speaker, which is generally composed of a speaker unit and a box. The speaker unit is the component that emits sound, and the cabinet acts as a supplement to the speaker unit to correct the sound. The sounding principle of the speaker unit is a conversion of electrical energy into sound. When different electronic energy is transmitted to the coil, the coil generates an energy that interacts with the magnetic field of the magnet. This interaction causes the paper plate to vibrate, because the electronic energy is always Change, the coil of the horn will move forward or backward, so the paper plate of the horn will follow the movement, and these actions will change the density of the air to produce sound.

acoustic psychology

When a tree collapsed in the forest, there was a loud bang, but no one was in the primeval forest, so the sound could not be heard. Does this count as a sound? It must be, because when the trunk and the branches touch the ground, they all make some sound, but no one hears it, but the sound is very important to what humans or other animals hear. is different, so this is what acoustically means Psychoacoustics