What is the difference between audio and speakers _ the difference between audio and speakers

A speaker is a device that converts an audio signal into sound. In general, it means that the main body of the speaker or the subwoofer box has its own power amplifier. After the audio signal is amplified, the sound is played back by the speaker itself, making the sound louder.

The speaker is the terminal of the entire sound system. Its function is to convert the audio energy into the corresponding sound energy and radiate it into the space. It is an extremely important part of the sound system, and it is responsible for turning the electrical signal into an acoustic signal for direct listening.

The speakers on the market are all kinds of colors, but in either case, they are composed of the two most basic parts of the speaker unit (the term is called the speaker unit) and the cabinet. In addition, most of the speakers use at least two or more. The speaker unit performs so-called multi-channel split reproduction, so the frequency divider is also an indispensable component. Of course, the speaker may also have sound-absorbing cotton, inverted tube, folded "maze pipe", ribs / reinforcing partitions and other components, but these components are not essential for any one speaker, the most basic components of the speaker The element has only three parts: the speaker unit, the cabinet and the divider.

The classification of the speakers has different angles and standards. According to the acoustic structure of the speakers, there are closed boxes, inverted boxes (also called low-frequency reflection boxes), passive radiator speakers, transmission line speakers, and their respective characteristics are detailed. Related questions and answers. The inverter box is the mainstream of the current market; from the perspective of the size and placement of the speakers, there are floor boxes and bookshelf boxes. The former is relatively large, usually placed directly on the ground, and sometimes the feet for shock absorbers are installed under the speakers. nail. Due to the large volume of the cabinet and the ease of use of larger and more woofer units, the floor box has better low frequency, higher output sound pressure level and stronger power carrying capacity, so it is suitable for listening area or more comprehensive. Used occasions. The bookshelf is small in size and usually placed on the tripod. It is characterized by flexible placement and no space. However, due to the volume of the cabinet and the size and number of the woofer, the low frequency is usually lower than the floor box, the carrying power and the output sound pressure. The level is also smaller, suitable for use in a smaller listening environment; according to the narrow frequency band of playback, there are wide-band speakers and narrow-band speakers, most of the speakers are designed to cover the widest possible frequency band. , belongs to the wideband speaker. The most common narrow-band speaker is the subwoofer (subwoofer) that rises with the home theater. It is only used to restore the ultra-low frequency to a very low frequency band. According to the built-in power amplifier, it can be divided into passive speakers and Active speakers, the former does not have a built-in amplifier and the latter, most of the current home speakers are passive, but the subwoofer is usually active.

Acoustic refers to sounds other than human language and music, including the sound of the natural environment, the sound of animals, the sound of machine tools, and various sounds emitted by human actions. The sound probably includes a set of amplifiers, peripheral devices (including compressors, effects, equalizers, VCDs, DVDs, etc.), speakers (speakers, speakers), mixers, microphones, display devices, and so on. Among them, the speaker is a sound output device, a speaker, a subwoofer, and the like. One speaker includes three types of speakers: high, low, and medium, three but not necessarily three. The history of technology can be divided into four stages: electron tube, transistor, integrated circuit, and FET.

Audio equipment probably includes amplifiers, peripheral equipment (including compressors, effects, equalizers, exciters, etc.), speakers (speakers, speakers), mixers, sound sources (such as microphones, musical instruments, VCD, DVD) display devices Wait altogether to add a set. Among them, the speaker is a sound output device, a speaker, a subwoofer, etc., one speaker includes three kinds of high, low, and medium speakers, three but not necessarily three.

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