Loudspeakers are also called "horns". It is a very commonly used electro-acoustic transducer device, which can be seen in sound-producing electronic and electrical equipment.
A speaker is a transducer that converts an electrical signal into a sound signal. The poor performance of the speaker has a great impact on the sound quality. The speaker is the weakest component in audio equipment, and the most important component in audio effects. There are a variety of speakers, and the prices vary greatly. Audio power generates sound through electromagnetic, piezoelectric, or electrostatic effects, causing the bowl or diaphragm to vibrate and resonate with the surrounding air.
type:
There are many kinds of speakers. According to its energy exchange principle, it can be divided into electric type (ie moving coil type), electrostatic type (ie capacitive type), electromagnetic type (ie spring tongue type), piezoelectric type (ie crystal type), etc. The latter two are mainly used in rural cable broadcasting networks; according to the frequency range, they can be divided into low-frequency speakers, mid-frequency speakers, and high-frequency speakers. These are often used as combined speakers in speakers.
According to the energy exchange mechanism and structure of moving coil (electric), capacitive (electrostatic), piezoelectric (crystal or ceramic), electromagnetic (compression spring), ionizing and pneumatic speakers, electrodynamic speakers have good Electroacoustic performance, firm structure, low cost, and wide application.
According to the sound radiation material, paper cone type, counting tube type, diaphragm type; according to the shape of the paper cone, it is divided into round, oval, double paper cone and rubber folding ring; according to the working frequency, it is divided into bass, midrange, treble, and some It is also divided into recorder-specific, TV-specific, ordinary speakers and high-fidelity speakers; according to the voice coil impedance, it is divided into low impedance and high impedance; according to the effect, it can be divided into direct radiation sound and ambient sound.
