What is a microphone What are the main classifications of microphones

The explanation of the words of microphone is: commonly known as microphone, microphone, formerly known as microphone. A device that converts sound into corresponding electrical signals, and is widely used in **, broadcasting, recording and amplification equipment.

The explanation of the words of microphone is: commonly known as microphone, microphone, formerly known as microphone. A device that converts sound into corresponding electrical signals, which is widely used in broadcasting, recording and amplification equipment.

The phonetic pronunciation is: 一 . The structure is:

Transmission (left trouser rent, right structure), sound (upper and lower structure), device (upper, middle and lower structure). Pinyin is: chuánshēngqì.

The part of speech is: noun.

What is the specific explanation of microphone, we will introduce it to you through the following aspects:

1. Citations and explanations [click here to view the details of the plan].

Commonly known as microphone, microphone, formerly known as microphone. A device that converts sound into corresponding electrical signals, and is widely used in **, broadcasting, recording and amplification equipment.

2. Chinese dictionary.

A device that converts sound into electricity. It is a translation of the English microphone, created by the Englishman Hughes. After being used in the first machine, the microphone can hear the sound, such as microphones, microphones, etc.

Words about microphones.

microphoneboom

Idioms about microphones.

Linqiong polyester, rat thrower, big instrument, late hollow valley microphone, Yu extraordinary, fighting vessel.

Words about microphones.

The amount of energy can give the instrument, the rat throwing device, the taboo device, the big instrument, the late bloomer, the small Yiying device, the extraordinary instrument, the extraordinary instrument, the weapon of the fighting basket, the voyeuristic artifact, the sound of the empty valley.

Sentence formation about microphone.

1. In this paper, the frequency response function of the control system required for several different secondary sound sources and detection microphone configurations is derived.

2. About a minute later, the sound was heard by a microphone hoisted under the receiving ship.

3. The basic principle, structure, acoustic and electrical properties of digital microphones are introduced.

4. The circuit involves amplification, filtering, level rise and other circuits, and gives a safety design problem, using an electret condenser microphone to pick up the heart sound signal.

5. The call of the frog is recorded on a channel with a transistor microphone.

There are probably 3 main types:

1. Omnidirectional; It is characterized by the fact that the polar diagram is circular; That is, in the direction of 360 degrees (mainly referring to the plane space), the sensitivity of each direction is basically the same;

2. One-way; It is characterized by the fact that the polar diagram is a cardioid shape; That is, the sensitivity is highest in the 0 degree direction; lowest in the direction of 180 degrees; As for how big the difference is between the two, it depends on the effect you want; The basic sensitivity of 90 degrees and 270 degrees is also the same, but it is still about 4 dB lower than 0 degrees;

3: Bidirectional: It is characterized by a "figure 8" polarity, that is, the sensitivity is higher at 0 degrees and 180 degrees; At 90 degrees and 270 degrees, the sensitivity is the lowest;

The above is a simple description, if you want to be more detailed, you can find some information to see ......

1.According to the principle of transducer, it can be divided into electric, electromagnetic, piezoelectric and semiconductor microphones.

2.According to the directionality of the disturbed rock state of the received sound waves, it can be divided into two types: fingerless slow source direction and directionality, and directional microphones include cardioid directivity, strong directionality, bidirectional jujube cracking, etc.

3.According to the use, it can be divided into stereo sound.

Close-up talk, wireless microphones, etc.

Acoustic propagation is transmitted through a medium. Sound can only be produced due to the vibration of the object, and sound is the fluctuation produced by the vibration of matter, which needs to be transmitted by the medium to be heard.

The basic features are as follows:

Reflection. Because sound travels at different speeds in different media, the phenomenon of sound reflection and refraction occurs. The phenomenon of sound waves encountering obstacles while traveling and returning to the original medium is called reflection, and this phenomenon of sound wave reflection is also called echo.

The reflection of sound waves was experimentally proven as early as 1882.

Refraction. If the sound is transmitted in different media, the phenomenon of deflection in the direction of the propagation bench due to the lack of flutter due to different speeds is called refraction. For example:

Midnight bell to the passenger ship". At night, due to the high temperature near the high altitude and the fast speed of sound, Zaoling makes the sound waves deflect downwards when traveling, so the bell in the Hanshan Temple will be transmitted to the passenger ships on the river.