What are the components of the audio, and what are the components of the car audio system?

The components of audio can be roughly divided into the following components: sound source (signal source) part, power amplification part and speaker (speaker) in terms of hardware.

Common audio sources are: CD player, LP vinyl record player, digital player, radio tuner and other audio equipment, these devices convert the audio signal in the storage medium or radio station through digital to analog.

or demodulated to an audio analog signal.

Output. Power amplification: The power amplifier can be divided into pre-amp and post-amp, the pre-amp pre-processing the signal from the sound source, including but not limited to input switching, preliminary amplification, tone adjustment and other functions, its main purpose is to make the output impedance of the audio source and the input impedance of the power amplifier post-amp match.

Distortion is reduced, but preamp is not strictly necessary. The post-amp is to amplify the power of the signal output from the pre-amp or sound source to push the speaker system to make sound.

Speaker (speaker): The speaker of the speaker is an electroacoustic transducer device, and all the signal processing parts are ultimately prepared for pushing the speaker. The power-amplified audio signal moves the paper cone or diaphragm through electromagnetic, piezoelectric or electrostatic effects to drive the surrounding air to make a sound.

A loudspeaker is the terminal of the entire sound system.

The audio is composed of sound sources (**** equipment, pickup equipment, that is, microphones), control equipment (analog or digital mixers), audio processors (in the past, they were all peripheral equipment such as effects, equalizers, limiters, crossovers, signal distributors, delays, etc., and now there are digital system controllers that integrate the above functions), power amplifiers (power amplifiers), and speakers. The above equipment is used by various types of wires and cables connected in series.

The car audio system is mainly composed of power amplifiers, speakers, antennas, sound processing equipment and accessories.

Tape Player:

A complete set of car audio is divided into five parts: 1Host, DU (cd, vcd, ***) 2.

Front Sound Field Speakers and Crossovers 3Rear Acoustic Field Speaker 4Power amplifier 5

The bass host is the sound source The power amplifier is divided into one power amplifier, two power amplifiers, four power amplifiers, five power amplifiers and six power amplifiers, usually two and four channels are more common, the role of the power amplifier is: the rated power of the host is very small, at this time when pushing the horn, the power is not very sufficient, the speaker does not have enough power to push, it is difficult to play the best effect.

Front sound field speaker: Generally on the front two doors of the car, some on the instrument panel, generally choose to upgrade, the front sound field is recommended to install a set of speakers. Rear Sound Field Horn:

Generally, on the rear door of the car, there are also on the rear partition, and the coaxial horn is generally installed to supplement the details of the sound field. (The rear sound field can also be installed with a set of speakers, but the front sound field must not use a coaxial speaker) Speakers are generally divided into: (set and coaxial) Set of speakers are divided into (three-way and two-way frequency) Two-way means:

The tweeter is separated separately, this is the tweeter (called treble boy in the industry), two mid-woofer and two crossovers. Three-way frequency: The high, mid, and low tones of the horn are all separate units The role of the crossover:

It is to separate the treble and the bass independently, so that the sense of hierarchy will be more ideal, the set of speakers is generally installed in the front sound field, that is, installed in the front door, because listening to ** is mainly the driver of the front sound field and the person sitting in the co-driver.

A system that can reproduce sound is called a sound system, which consists of a sound source, an audio power amplifier, speakers, cables, etc.

The five major components of the audio system include: sound source equipment, audio signal dynamic processing equipment, audio signal amplification equipment, sound restoration equipment, and audio cable. Sound source equipment:

Columns such as ***, cd, ***, mp4, computer, mobile phone, microphone, etc. Audio signal dynamic processing equipment: limiters, effects, mixers, audio processors, equalizers, etc.

The sound system generally includes:

1. Sound source equipment: (such as: ***, cd, ***, mp4, computer, mobile phone, microphone and other sound source output equipment).

2. Audio signal dynamic processing equipment (compressors, effects, mixers, audio processors, equalizers and other audio signal processing equipment).

3. Audio signal amplification equipment (analog power amplifiers and equipment such as pre-stage power amplifiers, post-stage power amplifiers, and digital power amplifiers).

4. Sound restoration equipment (full-range speakers, ceiling speakers, sound columns, line array speakers, array speakers, tweeters, subwoofers, etc.).

5. Audio cable (XLR plug, large three-pin plug or three-pin plug, lotus plug (RCA), small three-pin plug or three-pin plug).

Provide a high-quality sound signal source for the sound system.

Audio sources are divided into two main categories. One is:Hardware audio sourceElectronic musical instruments are the most common way of presentation, and the internal hardware has a large sound library to support, generally with the most outstanding timbre samples on the market; The second group is:Software audio sourcesThe common format is VST, which is loaded and used by the host, and the quality of the timbre is simply determined by the developer's sampling level.

Adjust and control the sound signal. It is also the most complex part, the part where the tuner works for most of his work.

The main equipment is:Mixer

Auxiliary processing of sound signals. There are three main categories.

Power amplification, because the processed signal cannot directly push the speaker, and the signal needs to be amplified to push the speaker.

The electrical signal is converted into an acoustic signal.

Every part of the sound system is very important, and tuning requires tuning each part to the best possible condition (barrel theory).

Answer]: a, b, c

The sound system is mainly composed of three parts: line array speakers, point sound source speakers, and stage monitors.

The car audio system consists of:

1. Power amplifier: referred to as power amplifier, refers to an amplifier that can produce the maximum power output to drive a certain load under the condition of a given distortion rate.

2. Yangtuan microphone: It is a very commonly used electroacoustic transducer device, which can be seen in the electrical equipment of the electric collapse wheel that produces sound.

3. Antenna: It is an electronic device that can adjust a large number of different frequencies to distribute a large number of electrical signals, and compensate for the defects of the speaker and the sound field through the adjustment of electrical signals of various frequencies, and compensate and modify various sound sources.