What Are the Different Types of Trumpet Jobs?

The horn is also called a speaker. It is a very commonly used electroacoustic transducer. It can be seen in the electronic circuits that produce sound.

Horn principle

There are many types of speakers, and the prices vary widely. Audio energy can cause sound by causing the paper cone or diaphragm to vibrate the surrounding air through electromagnetic, piezoelectric or electrostatic effects. According to the energy conversion mechanism and structure, transfer coil type (electric type), capacitive type (electrostatic type), piezoelectric type (crystal or ceramic), electromagnetic type (spring type), ion type and pneumatic horn, etc., electric type The horn has the advantages of good electro-acoustic performance, solid structure, and low cost. It is widely used; it is divided into cone type, horn type, and diaphragm type according to acoustic radiation materials; it is divided into circular, oval, double paper cone and rubber according to the shape of the paper cone Folding ring; subwoofer, midrange, and treble according to operating frequency, and some are also divided into recorder, television, ordinary and high-fidelity speakers; low impedance and high impedance according to voice coil impedance; direct radiation and environment according to effect Sound etc.

Different speakers work differently;

The most common and typical one is a paper cone horn, also known as a dynamic horn. It consists of three parts:

Vibration system, including cone paper cone, voice coil, centering support, etc .;

Magnetic circuit system, including Yongyi magnets, magnetically permeable plates and field poles;

Auxiliary system, including basin stand, terminal board, blank holder and dust cover. When an audio current passes through the voice coil in the magnetic field, a magnetic field that changes with the audio current is generated. This magnetic field interacts with the magnetic field of the permanent magnet to cause the voice coil to vibrate in the axial direction. Because the speaker structure is simple and the bass is full , Soft sound quality, frequency bandwidth, but low efficiency.