Is it normal to be able to hear the next door in the bedroom

In the bedroom, but you can hear the conversation next door, this is because your bedroom is not very soundproofed with the person next door, or the window is too close, so in the dead of night, you will definitely hear it clearly, and it is normal to talk this thing that is not strange at all.

The bedroom can hear the next door talking, maybe the next door is talking too loudly. Most likely, your house is not well insulated.

The guy used black technology to make a simple listening device and eavesdropped on a big secret in the next room.

<> "1. What should I do if I can hear the upstairs in the bedroom.

The sound of the upper floors can be heard in the bedroom, which proves that the house is poorly insulated. You can transform the Tianzi bent board, use soundproof cotton to make the ceiling, which can play a good sound insulation effect, and can play a role in heat preservation and heat insulation, or you can use gypsum board to make the ceiling, and then spread the soundproof cotton on it. Secondly, the doors and windows can be made into materials with good sealing, which can be searched for sound insulation and absorption.

2. What are the indoor sound insulation materials?

1. Acoustic panels.

Acoustic panels have excellent sound insulation and can be used for wall construction. Before purchasing in the early stage, check whether the report is qualified, so as not to buy inferior sound insulation panels, otherwise it is difficult to achieve the expected sound insulation effect.

2. Vibration damping pads.

It is recommended to choose olefin damping pad raw materials, mainly made of foam, which has a unique structure, has a good noise reduction effect, and can control and buffer the propagation of sound, and is often used in ground sound insulation.

3. Sound-absorbing cotton.

This kind of material has the characteristics of waterproof and moisture-proof, sound absorption and noise reduction, convenient construction, etc., and is often used in KTV, hotels, dance halls, recording studios and other areas.

4. Sound insulation sealing strip.

The main purpose of the soundproof sealing strip is to plug the gap between the windows, which has the same effect as the soundproof cotton. This type of material is suitable for windows with poor sealing, and it is also relatively cheap. However, if the gap in the window is too large, the sound insulation effect is poor.

Fangji blocking method one: use soundproof curtains; If the windows can't be replaced, it is recommended to replace them with soundproof curtains, the effect will be a little better. If the curtains are drawn, it will be much quieter than not, which proves the effect of soundproof curtains.

Method 2: Change the glass; If you can change the glass, you can choose double-layer laminated glass. Equipped with good window profiles, Boqiao does a good job of window seam sealing, and double-layer laminated glass can often achieve a better sound insulation effect.

Method 3: Retrofit into a window soundproof window; If the window sill at home is not wide enough, or you feel that the ventilation performance of adding a layer of soundproof windows is not good enough, you can also remove the original windows and replace them with a layer of low-frequency soundproof windows. Now the main use of Heng attack double-layer hollow windows for sound insulation, this way can also play a certain role in isolating traffic noise, but in terms of sound insulation effect, it is worse than installing a layer of soundproof windows.

According to your description, this is a very normal human phenomenon. Because when you sleep, your eyes are closed, that is, closed, and your ears are still open, when your brain is no longer sensitive to vision, the sense of hearing of sound is more than the sensitivity you were when you were not asleep. And when you wake up, the sensitivity of the auditory system of the brain is partially distracted by the visual system after you open your eyes, so you feel that the sound is a little quieter, and in fact, the volume of the sounds around you is the same before and after you sleep.

It's just that there is a difference in perception due to attention.

The simplest analogy for you is that when classmates or friends play together, although everyone is playing and laughing, you will not feel that the sound is very strong, and you are tired and want to close your eyes and take a nap, at this time, you will feel that the surrounding sound is so noisy, and the noise is particularly obvious, which is the difference between the sound perception of the ears before and after sleep.

There is also an example of this: if you want to listen to where a weak voice near you is coming from or what it is, if you close your eyes and listen carefully, the effect will be much better than if you listen with your eyes open, and this is the reason why the hearing system of blind people is more sensitive.

Let's take an example first: if you type ** with a friend, you can hear every word he says; But if you watch TV when you pick up **, sometimes you will ask the other party to repeat it, in fact, it is not that his voice has become quieter and you don't hear clearly, but that you are distracted by watching TV.

In psychology, it is explained that the distraction of attention is also called distraction.

When you first wake up, you mention that you are woken up, at this time your energy is completely attracted by the voice, and is not disturbed by other factors, but the process of waking up is actually the awakening of other senses and the intervention process of other factors, such as: eyes open, limbs moving, etc., all make your energy not so concentrated, resulting in distraction.

It's because it's quieter and you're more focused.