Speaker sound principle

The sound system is very important, the same equipment is the speaker, the speaker is generally composed of the speaker unit and the box. The speaker unit acts as a sounding component, and the cabinet acts as a supplement to the speaker unit to correct the sound. The principle of sounding of a horn unit is a kind of conversion of electric energy into sound. When different electron 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 tray to vibrate because the electron energy is always at any time. Change, the coil of the horn will move forward or backward, so the horn's paper tray will follow the movement, which makes the air density change and produce sound.

 

Acoustic psychology

When a tree in the forest collapsed, there was a loud noise, but no one was in this virgin forest, so I could not hear it. Is this a sound coming out? The sound is definitely coming out, because when the trunk and branches touch the ground, they all produce some sound, but no one hears it, but the sound is heard by humans or other animals. It is different, so this is the psychology (Psychoacoustics).

 

Acoustic history

In 1915, an American named E. S. Pidham put a telephony listener on the horn of a record disc, and the sound was given to a group of people celebrating Christmas in San Francisco. Electroacoustics was born. After the end of the First World War, at the inauguration of President Harding in the United States, Bell Company connected the phone's dynamic listening device to the horn of the record player at that time, and was able to pass the voice to the president. A large group of people at the ceremony, so many professional audio research and the development of sound reinforcement engineering. The sound researchers are not only trying to improve the audio equipment, but also doing various kinds of different sound experiments to understand the human response to hearing. But the most advanced audio research people understand that sound science is a holistic study. They must make a great contribution to understanding every aspect of audio equipment and human physiological response to hearing.