Often seen or heard, some people categorize "sound" and "sound" in the sense of architectural acoustics. For example, "sound insulation" is said to be "sound insulation"; "sound absorption" is said to be "sound absorption". So what is the difference between the so-called "sound" and "sound" in acoustic professionalism? Which is more appropriate to call "sound" "sound" or "sound"?
When it comes to acoustics, the first thing to talk about is sound. The so-called sound actually has a double meaning. The interpretation of sound in Chinese is: the wave that produces an auditory wave when the object vibrates. We generally understand that the effect of sound waves that the human ear can feel is called sound, but physically, sound refers to the disturbance that propagates in any elastic medium. It is a mechanical wave. From this concept, The scope of sound is very wide. What is disturbance? Disturbance is a density, or pressure, or a small change in velocity in air, solid or liquid. This change propagates through the elastomer, the energy propagates out, and the elastic material itself It does not spread, and the energy that is transmitted is sound. In the concept of such a sound, as long as there is an instability in the elastic medium, sound is generated. Acoustic waves of acoustic research are such mechanical waves that propagate in solid, liquid, and air media, so the scope of acoustic research is quite wide.
A word that is often connected to the sound is called a sound. We Chinese people speak the sound of sound, what is the sound? The definition of sound is such a sound that can cause a feeling of tone, which means a meaningful sound. The sound that people make when they speak, after hearing the voice of the listener, can realize that there is a certain meaning in it, or that it feels a certain meaning, this is the sound. In ancient China, the relationship between sound and sound has been well understood and defined. Lao Tzu often talks about the relationship between sound and sound, such as "harmony of sound and sound, followed by before and after", "big sounds, elephants are invisible, big instruments are late", etc. Wait. The so-called "big sounds" means that reason is not high, as long as your reason can be clearly stated, it is not the size of your sonic energy, the sound here is the sound of physics, and the sound is the meaning in the speech. Give more than 1.3 billion Chinese people a sense of hearing! !
It can be seen that “sound†is a form of “soundâ€, and it does not cover the meaning of “soundâ€. When it comes to acoustics, we should call "sound absorption" and "sound insulation" accurate.
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