WHAT IS WHITE NOISE MDOULE?

White noise refers to the fact that the power of frequency components in a sound is uniform over the whole audible range (0-20khz). Because the human ear is sensitive to high frequencies, this sound sounds like a loud rustle.

White noise or white noise is a kind of random signal or process whose power spectrum density is constant. In other words, the power of the signal in each frequency band is the same. Because white light is a mixture of monochromatic light of various frequencies (colors), the property of the signal with flat power spectrum is called "white", and the signal is also called white noise.

brief introduction

In contrast, other noise signals that do not have this property are called colored noise. Ideal white noise has infinite bandwidth, so its energy is infinite, which is impossible to exist in the real world. In fact, we often regard flat signals with limited bandwidth as white noise, because it makes it easier for us to do mathematical analysis.

Magic's "white noise" has amazing properties. It's like a white beam of light, made up of all colors, but what we see is white light. It's a form of white noise that one might ask, what does white noise sound like? Can you tell us exactly that in some western countries, many people who have been treated with white noise describe them as sounding like the sound of rain, or the sound of waves beating against rocks, or like the rustling sound of wind blowing through leaves. This kind of sound can play a certain role in sound therapy for people of all ages. It is a kind of "harmonious" therapeutic sound. Some people feel that "white noise" sounds a little harsh, and white noise at a certain volume can cure some hyperactivity children with mental disorders. Some experts and scholars say that "white noise" is actually a sound hint given to us by nature, which can play an auxiliary role in the treatment of some nervous system diseases. If you want to learn more about white noise, let's take a look at how it works.

treatment

White noise is an effective voice therapy for parents of newborns. For example, newborns have just left their mother's womb and come to a strange environment, which requires an adaptation process for them. Some strange sounds in our living environment sometimes make them feel uneasy and irritable. They prefer the noise in the womb, and white noise is similar to the sound they are familiar with. Therefore, when many new born babies feel uneasy, they will be quiet when they hear this sound. Especially for those children with neonatal hernia, they often because of physical discomfort and environmental discomfort and inexplicable loud crying.

Some people who are often polluted by environmental noise will use white noise to help them recover their work efficiency. For example, some college students or office workers will use white noise to reduce the adverse effect of construction noise on their concentration. White noise is even recognized as an effective "voice make-up" treatment for nervous system diseases such as mental disorders, tinnitus, hearing hypersensitivity and hyperactivity disorder. Others use white noise to weaken sounds that interrupt their normal sleep. It's not just night shift workers who sleep during the day and work at night using white noise to cut down all the sounds that might disturb their sleep during the day. In addition, the roar of the railway at night, the barking of dogs, and even the snoring of your spouse can be weakened by the "shielding" function of white noise. In this way, you can have a good sleep, no matter what kind of sleep environment. The next thing we need to consider is how to get white noise in our lives.

obtain

Using small items

There are many ways to get white noise. The easiest way is to make use of the little things around us. For example, a radio, an electric fan, or an air conditioner. However, it is difficult to control the volume of these objects that can emit white sounds. What's more, we can't continue to turn on the electric fans or air coolers to get these sounds in winter. This method is obviously not practical and is not an environmental protection method. Is there a better way to get white noise? We've found that some companies have started making white noise machines, or white sound generators. This kind of instrument is a little big and expensive, which is inconvenient for ordinary users.

Using the radio

At present, the most economical and convenient way is to use your CD player to listen to white sound. We can use small disk copy technology to copy some white sound with moderate volume. When you record the white noise of nature and life on a CD, you can listen to it at any time. Of course, we can buy some white sound CDs or download them on the Internet in MP3 format. The biggest advantage of this method is that you can adjust the volume according to your feeling. You can control the volume flexibly. You can adjust the bass track to improve the white noise's ability to "block" the pink noise when the heavy traffic noise bothers you. You can also use "repeat" to repeat a sound you like and effective. These white noises sound like waves, sea winds, rain, or moving wind. Hope that through the introduction of this article, you have slowly begun to pay attention to it.