What Is Down Volume?

Sound (sound) is a sound wave generated by the vibration of an object. It is a wave phenomenon that is transmitted through the medium (air or solid, liquid) and can be perceived by human or animal hearing organs. The object that originally vibrates (vibrates) is called the sound source. Sound travels in the form of waves (vibrations). Sound is the movement of sound waves through any material.

[shng yn]

In physics, sound is generated by the vibration of an object. The object that is making a sound is called

The essence of sound is fluctuation. The air vibrates due to the effect. When the vibration frequency is 20-20000Hz,

Today, the scope of application of acoustics is becoming wider and wider, and it has a pivotal position in military, medical, and architectural aspects. Especially, architectural acoustics is a key subject that architectural designers have been studying.

Since Edison invented the phonograph in 1877, human history has entered the era of sound, and many precious historical materials have new storage and transmission methods. Many precious audio materials are being eroded a little bit by ruthless time. Without proper storage and protection, we will eventually lose these precious historical notes. Therefore, on the morning of August 30, 2013, the Fourth Session of the Twelfth National People's Congress Standing Committee voted to pass the Decision of the Standing Committee of the National People's Congress on Amending the Trademark Law of the People's Republic of China, since May 2014. Effective from 1st. The amendment to the Trademark Law adds elements of a trademark that can be registered, and stipulates that voices can be registered as trademarks.

The regulations on sound trademarks have come into effect, and beautiful notes are no longer just appreciated by us, it also has certain commercial value. With the popularization of wireless networks, multimedia advertisements not only appear on the Internet, but also on mobile WeChat, blogs, and various APP applications. Branding "sound" for yourself will trigger unlimited creativity for enterprises. This is an effective way to protect sound resources.

^[2]

When you open your mouth and make a sound, you hear far less mellow and soft than the people around you-all blame your brain. To be precise, this is just your skull vibrating. Your voice comes from the lower part of your throat, and air from your lungs passes through your vocal cords, creating vibrations and making sounds. This sound is then amplified by the throat, and then organized into text by your lips and tongues, echoing through the surrounding environment, entering the listener's ear, stimulating their tympanic membrane and inner ear structure, converting the analog waveform into an electrical signal, and finally transmitting it Brain understanding.

However, the inner ear doesn't just pick up sounds from external sources. Vibrations inside the body can also excite these hearing structures. When you speak, the rapid tremor of the vocal cords actually drives your cranial cavity to vibrate. "When you speak, sounds vibrate in your throat, which in turn vibrates your skin, skull, and mouth, and we treat these as sounds.

But sound is not as easy to spread in bones as it is in air. The increased resistance causes the frequency of the sound waves to drop, reducing the tones you hear, which causes a feedback phenomenon that stimulates the eardrum to receive both sounds from the air and stimuli from skull vibrations. This effect prevents you from really hearing your own voice. Because your ears are usually behind your mouth, the sound that comes out of your mouth must first hit an object to bounce back into your ears. This also results in the loss of sound energy, that is, the frequency and pitch. The result is that compared to other people directly hearing the sound in your mouth, you hear a distorted, slightly lower sound. These two sounds (internal and external) are integrated by your brain into an auditory signal, which is "own voice", but it is actually subwoofered. ^[3]