At night, I heard voices in the room whether it was upstairs or downstairs

At night, I heard talking in my room, either upstairs or downstairs.

The noise coming from upstairs is usually crisp, while the noise coming from downstairs is usually muffled. However, noise from upstairs may be transmitted through the floor, resulting in being heard downstairs as well and vice versa. Therefore, it is not possible to tell exactly whether the speaking voice is coming from upstairs or downstairs.

Also, if you only hear the sound of people talking and no other noises, then it may be noise coming from downstairs. If you hear a lot of sounds at the same time, including walking, activity, etc., then it could be noise from upstairs.

If you can hear the noise downstairs, then the same noise may be heard downstairs downstairs.

In short, judging whether the voice is coming from upstairs or downstairs needs to be considered comprehensively in combination with the actual situation, and cannot be judged simply based on some characteristics. If the noise affects your rest, it is recommended that you observe more, find the noise ** and take appropriate measures.

This can't be said, it depends on the sound you heard at the time to distinguish, as long as the voice is loud at night, whether it is upstairs or downstairs, it can be heard, upstairs and downstairs should be a little clearer, are upstairs and downstairs neighbors should be able to hear, some words, some things, can't be too serious, no matter upstairs and downstairs talking, you think upstairs is upstairs, you think downstairs is downstairs, don't be too serious.

The sound is circuitous, and the sound from downstairs can be transmitted upstairs through cracks such as windows. We shout in front of the building, and the people in the back of the building can also hear the shouting, which is the roundabout nature of the voice.

The sturdy solid floor slab conducts sound, so that the sound from downstairs can be transmitted upstairs. In ancient times, there was no modern communication equipment such as ** and mobile phones, when the enemy attacked, the soldiers put their ears on the ground, and they could hear the sound of horses' hooves and footsteps of the enemy approaching in the distance, and the solid ground could conduct sound. Similarly, the two sides of a solid wall speak easily and are easy to hear, while the two sides of a hollow wall are blurred.

Sound insulation materials are divided into several categories:

1. Porous materials, which are the most commonly used materials in engineering. Example: mineral wool, glass wool, foam, felt, perlite, etc.

2. Plate-like material. Example: plywood, asbestos cement board, gypsum board, rigid board, etc.

3. Forming ceiling sound-absorbing panels. Example: mineral wool acoustic panels, glass wool acoustic panels, soft fiberboard.

4. Membrane material. Examples: plastic film, canvas, artificial leather. Leather.

5. Flexible materials. Examples: sponges, latex blocks.

Sound is a sound wave produced by the vibration of an object. It is a wave phenomenon that propagates through a medium (air or solid, liquid) and can be perceived by the auditory organs of humans or animals. An object that initially emits vibrations (vibrations) is called a sound source.

Sound travels in the form of waves that vibrate (vibrate). Sound is the motion formed by the propagation of sound waves through any substance.

Generally speaking, I can't hear it, but I've never heard it anyway, upstairs and downstairs. But if it's a quarrel, or if it's a child being beaten or scolded, this kind of voice will be heard if it is particularly high-pitched, so don't do such a thing.

The answer is so dear, I can't hear clearly. The people speaking upstairs are reflected and absorbed in different directions by the structure of the room and the different furniture in the room, and the sound energy that can actually be transmitted downstairs is very small, and the sound will become mixed and blurred. And when the people downstairs speak, the reflection from the ground increases the energy to the room.

In addition, the noise outdoors is generally louder than that indoors. Therefore, people who are outdoors have weaker hearing sensitivity than people who are indoors, so in most cases, people upstairs can hear people downstairs, but people downstairs can't hear or can't hear people upstairs clearly.

1. Can you hear you talking upstairs and downstairs?

Under normal circumstances, since the sound travels upwards, what is said downstairs is easy to be heard by the people upstairs, and when the people upstairs speak, the people downstairs cannot hear clearly, and may even not be heard. In addition, when we go to see the house, due to the principle of resonance in the room, even if we are downstairs, far away from the sound source, we can hear the sound of the upstairs talking.

2. What should you pay attention to before buying a house?

1. In the early stage, it is necessary to confirm whether there is water leakage and hollowing in the house, and if there is, the developer needs to deal with it before signing the contract, otherwise the developer is likely to ignore or delay the problem in the later stage. During the period of residence, the house leaks but the developer has not dealt with it, and it may cause physical discomfort after living for a long time.

Generally speaking, it is not audible, because there is a thick floor between the upper and lower floors, and if this floor is not soundproofed, then you may hear a little sound, but it is not so obvious.

If the sound insulation effect is poor, you may be able to hear only a few words.

If the downstairs is louder, the downstairs can be heard. There is also to see how the sound insulation effect of the building is, anyway, my building can be heard.

This needs to see the situation of the building, generally like small property rights or commercial housing buildings with poor quality can hear the upstairs talking, but the *** house is not able to hear the talk.

If your house is not soundproofed, you can hear the sound of talking upstairs and downstairs, and if you talk loudly.

Now the sound insulation effect of the real estate is relatively poor, if the downstairs is louder, the upstairs can be heard.

Is the sound insulation of your building good? If the sound insulation is poor, it is audible.

Normally, people upstairs can't hear people downstairs, but people downstairs can easily hear people upstairs.

Generally speaking, in an indoor room, sound is transmitted from the top down. That is to say, the sound from upstairs can be transmitted downstairs, and the sound from upstairs can be heard downstairs, especially in buildings with poor sound insulation.

Because all sound sources are directly or indirectly in contact with the floor, and the floor can transmit the vibration of the sound source to the downstairs to drive the air downstairs to vibrate, so that the people downstairs can hear the sound upstairs.

Acoustic propagation. It is transmitted through a medium. Sound can only be produced due to the vibration of the object, and sound is the fluctuation produced by the vibration of matter, which needs to be transmitted by the medium to be heard.

When sound travels from downstairs to downstairs, the source of the sound needs to vibrate the air first, then the air to vibrate the ceiling, and then the upstairs floor to vibrate the air. During this process, the sound propagates through a number of different media, all of which are heavily attenuated.

Sound travels through the air, and when the temperature is too high, the air floats, so you can hear what is being spoken downstairs, and people downstairs can't hear it clearly.

In most cases, only a large decibel sound can be distinguished by the human ear in an open environment, and the human ear often collects echoes in daily life, but because the decibels of the echo are low or in a noisy environment.

Therefore, the human ear cannot distinguish echoes, so there can be no misunderstanding that "there is no echo in daily life", in fact, it is just that our ears cannot distinguish such sounds, or the brain receives but cannot distinguish them.

Sometimes, when we stand on the mountain and shout, we will hear our echo, because in the process of propagation, the sound encounters such an obstacle and will ** come back and be heard by us again. When two sounds reach our ears, and the time difference is less than a second, we can't tell the difference.

When the sound source stops vibrating, the sound continues for a period of time, a phenomenon called reverberation. Of course, if the sound is emitted in a space with obstacles and obstructions, there will be echoes, that is, as long as the sound encounters obstacles during the transmission process, the echo phenomenon will occur.

It's easier to hear upstairs downstairs.

Analysis, we first have to look at the daily life of a large number of shouting sound from what position, life our noise is usually ** in the mouth and hands of people, that is, at a height of 1-2 meters from the ground, these sounds are emitted, through the window or floor to the ears of the listeners, we can calculate, usually the current building floor height is about 3 meters, then the sound downstairs to the upstairs into the distance is the height of the floor - the height of the sound source + the height of the human ear. And the distance from the sound upstairs to the downstairs is the height of the sound source + the height of the floor - the height of the human ear. Because the height of the human ear is obviously greater than the height of the sound source, it can be clearly seen that the distance from the downstairs to the upstairs is smaller than that of the upstairs infiltration and delivery downstairs.

Our feelings in life are usually that it is easier to hear the sound of the downstairs downstairs, why is that? In fact, the reason is very simple, our buildings now have sound insulation indicators, that is to say, most of the noise generated by our normal daily life can be absorbed and isolated by the building itself, only the particularly loud sound and the sound of direct knocking on the building are easy to spread out and be heard by neighbors, what is the reason for the particularly loud sound and the sound of directly knocking on the building in our lives? "Phew!

Either move furniture or smash things. Then the height of this sound source is on the floor, which is equal to 0, and the distance from the downstairs is much smaller than that upstairs.