What do you know about the sound

Professional sound

It refers to other sounds other than human language and music, including the sound of the natural environment, the sound of the animal, the sound of the machine tool, the various sounds made by human movements. The sound may include power amplifier, peripheral equipment (including pressure limiter, effect device, equalizer, VCD, DVD, etc.), loudspeaker (sound box, horn) mixer, microphone, display device and so on. Among them, speakers are voice output devices, speakers, subwoofer and so on. A loudspeaker includes three speakers of high, low, medium, three, but not necessarily three.

The development history of technology can be divided into four stages: electron tube, transistor, integrated circuit and field-effect transistor.

The principle of sound transmission of ordinary (horn) sound

Medium resonance mixed sound, sound principle, the use of vibrator vibration sound + paper drum horn sound, we often use sound people know, ordinary sound in addition to professional sound, ordinary sound heavy bass are not enough, low sound a good point of the general volume is not small, this is mainly due to the use of loudspeaker sound The sound is greatly influenced by the size of the sound unit body, so a lot of multi-media audio directly uses the bass gun and the external sound box, which fully expands the volume of the sound unit body, but it has a great limitation on the sound and sound shape. This is why the sound we see in the city is usually the four square square. The reason for this is that the bass effect is not very good.

Component



The audio equipment may include power amplifier, peripheral equipment (including pressure limiter, effect device, equalizer, actuator, etc.), loudspeaker (sound box, horn), mixer, sound source (such as microphone, musical instrument, VCD, DVD) display equipment and so on. Among them, the sound box is the sound output device, the horn, the bass gun, and so on. One speaker includes three speakers of high, low and middle, three but not three.

Phonation principle

Vibrator vibrating sound (vibration sound) + paper drum tympanic horn sound.

The combination of traditional (ordinary) sound and vibration and sound has both the vibratory sound of vibrating sound and the sound of traditional loudspeaker.

Medium mixed sound is mainly combined with the vibration sound vibration sound technology principle and the ordinary sound paper drum horn sound principle, the two fusion; in fact, the medium resonance hybrid sound is very good understanding, medium resonance is through the vibration medium sound, and the combination of the traditional sound horn sound, the general It is the combination of traditional ordinary sound and vibration sound, the quality of sound is clear and not said, the effect of heavy bass is more significant, the main cities in the country should be sold, have not seen such sound of music enthusiasts, can go to experience, should not let you disappointed!

The principle of sound transmission of ordinary (horn) sound

Acoustic principle of vibratory sound

In recent years, the vibration sound, the use of vibration medium sound principle, the general heavy bass effect is good, the size of the small shape is also strange, it is estimated that many music enthusiasts will exclaim, this is the sound?!!!!! But the vibration sound also has its fatal flaw, the middle soprano is insufficient or almost no, and leave the medium (namely sound contact surface), once leave the sound medium, the sound is almost no, these are the problem that we should consider to buy the vibration sound, can't leave the medium, that is limited to the playing field.

The principle of medium resonance sound mixing

Medium resonance mixed sound is just the combination of these two, the vibration sound of the vibratory sound medium sound is just to solve the problem of low and large sound bass, and the combination of ordinary sound horn sound is a good solution to the sound of vibration sound, can not be separated from the vibration medium, can be said. Quality resonance hybrid sound still very good in the common sound and vibration sound found a balance point, complementary advantages, there is a professional sound effect does not say, it has no "square" or "round" and the like limitations, let the designer go to the sky and the empty shape.

Scope of use

Medium resonant mixer is also widely used, and can be used with mobile phone, MP3-5, notebook, desktop computer, game machine, mobile DVD and other personal equipment, family and personal sound expansion equipment. Especially equipped with lithium batteries, which can be used indoors or outdoors.

HI-FI

HI-FI is the abbreviation of English High Fidelity, literally translated into "high fidelity", which is defined as: replaying voice which is highly similar to the original voice.

Related equipment

So what kind of audio equipment replays the voice is HI-FI? So far, it is still difficult to make a definite conclusion. With all kinds of instruments, the professionals of the sound field determine the degree of the equipment HI-FI by various means, and the sound fancier often judges whether the equipment is in the mind of the HI-FI through his own ears. Judging the level of replay of high fidelity, not only the equipment and software with excellent performance, but also a good listening environment. Therefore, how to correctly measure the HI-FI level of sound equipment is still different from objective test and subjective evaluation.

Strictly speaking, we can call this scene AV as long as the image is heard to sound. Literally, AV means the combination of the English word AUDIO (audio signal) and the first letter of the VIDEO (video signal), and HIFI is a "high fidelity" meaning.

The difference between AV and HI-FI is not different from ordinary consumers. Here we want to talk briefly about AV.