Do Mirrors Affect Sound?

Mirrors are a popular item in our home, but do they affect sound? A lot of people do not sleep in front of the mirror because they hear a sound that comes from the mirror and wakes them up at night. Does sound come from mirrors? How can mirrors affect sound? We will find out the answer below.

Do mirrors affect sound? Mirrors can reflect sound and create an echo but they cannot absorb sound. It is made of glass and can resonate at frequencies that we can hear. The resonant frequency of the glass varies according to its thickness. With enough vibration, the glass can shatter.

If you have a mirror in the room and everything is quiet, you might think that a sound is coming from the mirror. It is strange and scary for someone to hear sounds coming from the mirror especially because it is surrounded by superstitious beliefs. In this article, we will discuss if mirrors affect the sound. Check out the rest of the article for more information about the topic.

Does Sound Bounces Off a Mirror?

Sound bounces off a mirror. Like light, sound also travels in waves but the difference is that it does not travel as quickly. As sound waves hit a surface, it follows the laws of reflection and refraction. Hence, sound reflects from any surface including the mirror.

Does Sound Come from the Mirror?

Sounds do not come from mirrors but they can reflect sound like it reflects light. On the other hand, there are superstitions and beliefs regarding sounds and mirrors. A mirror can disrupt your peaceful sleep because you might think that you are hearing sounds coming from inside the mirror. The sound that you hear does not come from the mirror but comes from another source and is projected by the mirror. We have also shared this article titled, mirror facing bed, should you sleep in front of a mirror? You can check out the article for more tips and information.

Mirror and Sound Superstitions

According to superstitions, you should not sleep in front of the mirror because your soul can get trapped inside. Aside from that, it can also cause nightmares and disrupt your sleep. Mirrors reflect sound so you might wake up in the middle of the night thinking that you hear noise coming from inside the mirror and you start freaking out. You start to get scared and think that you are seeing someone in the mirror. This is why it is recommended that you cover the mirror at night because like light, it can also reflect sound. You can also check out this article that discusses where you should not hang mirrors. We have shared an in-depth discussion about the topic.

What Makes a Material Good at Reflecting Sound?

The hardness, denseness, and flatness of the material are what makes it good at reflecting sound. Sound also bounces from a physical object like light. While all materials can reflect sound, some are much better compared to others. Take note that there are properties that make the sound reflection more successful.


This is one of the factors that make a material good at reflecting sound. A hard material or object can reflect sound much better.


Another factor that makes a material good at reflecting sound is its denseness. This is because porous materials can trap air and sound.


The last factor that makes a material good at reflecting sound is its flatness. While materials with irregular surfaces can reflect sound, flat such as a mirror can bounce sound in all directions much better.

Can Mirrors be Used to Bounce Sound Waves?

Mirrors can be used to bounce sound waves. It can produce unique effects that are ideal for live performances. By reflecting the audio to the audience, they can listen to a more exciting sound experience.

The Mirror is Made of Glass: Does Glass Absorb Sound?

Glass can absorb sound but only when it is near the resonant frequency. Rather than being reflected in the room, the glass will change the sound energy to vibration energy. Moreover, perforated plastic film and other fabric products that are placed a few inches in front of the glass are also able to absorb sound. On the other hand, it is still not considered a good sound-absorbing material.

How Can Glass Reduce Noise?

The thickness, spacing, and interlayers of glass affect and reduce noise. Take note that glass panes are rigid which makes them ideal for conducting sound waves. If your window is only made up of a single glass pane, it will not do an effective job of preventing unwanted noise from entering your home. If you have noisy neighbors, you should choose quality glass for your window.

The Thickness

One of the things that can effectively reduce the noise is for the glass to be thick. If the glass is thick, it has a better noise reduction. On the other hand, you need to take note that glass has a natural coincidence frequency which is the pitch that will amplify the sound. This is why it is recommended that you choose double glazing for your glass windows. This type of glass window features two different glass thicknesses that change the sound wave which effectively reduces noise that gets into your house when your window is closed.

The Spacing

Another factor that can reduce noise is spacing. If the glass has a large gap between the panes, it will have a better acoustic performance of soundproof glazing. On the other hand, thick widows can be expensive and are not always a practical choice for homeowners. To reduce the noise, you can fill the gap between the panes using materials that you can purchase at your local hardware store which includes argon. You can also have the option of creating a vacuum between the panes.

The Interlayers

You also need to consider the interlayers of the glass. There are laminated glasses that are designed to have a thin layer of polyvinyl butyral between two panes of glass so that it creates an outer pane. Polyvinyl is a great acoustic performance because it can dampen soundwaves. Moreover, it also makes the glass harder to break. If the glass is from an object, it will not shatter easily which also increases the security of your home.

✅ Video – Window Soundproofing

Soundproof Guide shared the video below on YouTube. It shows how to soundproof a window. If you want to soundproof your window, the video below shows eight different DIY methods that you can follow. Watch the video and find out which method is the easiest that you can.

What Type of Glass is Best for Noise Reduction?

The type of glass that is best for noise reduction will have to depend on the amount of noise that you are experiencing. A lot of people recommend using acoustic glazing. If you want to replace your window so that it can offer soundproofing benefits for your home, make sure that you do some research and look carefully at all the options that you have.

Nowadays, there is a wide array of glass with noise reduction and soundproofing qualities that are sold on the market. If you want to soundproof your home by using glass windows, make sure that you choose the right thickness and have the glass installed with the proper space between each pane.

Does Soundproof Glass Have benefits?

Soundproof glass is beneficial because it can reduce unwanted noise so you can sleep and relax better at night without having to deal with the noise pollution around your neighborhood. This is an ideal option if you have noisy neighbors. The windows play an important role when it comes to reducing noise pollution inside your home.

Bear in mind that glass conducts sounds and using a single glass pane that does not have any glazing will not prevent noise from entering your home. Make sure that you choose a thick glass that is installed with the right spacing and interlayers. You can also check out this article that discusses why can’t babies look in the mirror. We have shared an in-depth discussion about the topic.

What Advantages Can You Get from Soundproof Glass?

Some of the advantages that you can get from soundproof glass include reduced background noise, better sleep, increased concentration, and less stress. If you live in a noisy neighborhood and want peace inside your home, having the right soundproof glass window will do the job.

The windows are important when it comes to reducing noise pollution that enters your home. Nowadays, you can find a wide array of choices available at your local hardware store. Make sure that you compare one product to another so that you can have the best choice. You can also read this article that discusses where a mirror should be placed in a bedroom. We have shared helpful information that you can refer to.


You have reached the end of this article that discusses if mirrors affect sound. We have found out that mirrors affect sound. It is made of glass that is con considered a good sound absorber. If you have mirrors at home, specifically in your room, you might think that you hear some sound coming from them. However, the sound does not come from the mirror but from the noise around the house which is reflected by it. Thank you for reading!

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