Here, in line with the principle of making the living room at home into a listening room with good acoustic effect and a living room with beautiful decoration and warm atmosphere. Put forward some suggestions on decoration, which can be used for reference by friends who decorate new houses.
I. Door and window treatment (treatment purpose: sound insulation, sound absorption and dust prevention)
1. A lot of noise enters the room through doors and windows. A good wooden door can reduce the indoor noise level (10-20)db after it is closed tightly.
2. Covering the periphery of the door frame with sealing strips can reduce the noise level by (14- 18)db.
3. If the outdoor sound is noisy, it is recommended to install double windows.
4. If possible, aluminum alloy windows can be installed and made into push-pull type, which saves space, is convenient to use, is not easy to deform, has good sealing performance and is superior to steel windows.
5. If air conditioning is installed in the home, the air conditioning duct is both an air inlet and a noise inlet; If the TV room antenna is installed, the antenna entrance is also a noise entrance. These pipes and their interfaces should be muted.
6. Curtains, hanging curtains and tapestries. It is not only an important sound-absorbing material, but also an exquisite and luxurious decoration. Using velvet and velveteen as hanging curtains and curtains can reduce the reflection of sound waves and the vibration of glass windows. The sound absorption coefficient of velveteen curtain is 0.3 1-0.47, the sound absorption coefficient of medium-long fiber curtain is 0. 15-0.27, and the sound absorption coefficient of double-layer velvet curtain is the largest, reaching 0.69-0.82.
2. Indoor side treatment (treatment purpose: sound absorption)
1. Sound insulation and sound absorption shall be carried out on the ground. It's best to lay a carpet, because its sound absorption and sound insulation effect is ideal. The sound absorption coefficient of ordinary China fiber carpet is about 0.5-0.7 1, while that of real wool carpet is about 0.68-0.82.
2. It is recommended to lay the floor without carpet. The sound absorption coefficient of wood floor is about 0.03-0.05. It is not recommended to stick plastic bricks or tiles, because they have poor sound absorption and sound insulation performance.
3. Treat four walls.
Ordinary wall is a dry plastered brick wall, and its sound absorption coefficient is very small, about 0.02-0.04. Four walls can be made of wood. Or made of wood dado, the height is (0.8- 1) m, the dado should keep a certain distance from the wall, not less than 4cm, and a cavity is formed between the panel and the wall, which can increase the low-frequency sound absorption effect.
The wall should be painted white or sprayed with broken ash, latex paint, color spraying or other coatings, and their sound absorption effect is similar.
You can worry about the decorative cloth on the wall if you can. The distance between wall covering and the wall is (3-5)cm. This wall covering can not only enhance sound absorption, but also beautify the room.
3. Layout of indoor furniture (processing purpose: optimizing sound reflection)
1. Overall layout
Many family listening rooms can not only enjoy music, but also receive guests. To achieve the unity of audio-visual enjoyment and aesthetics. At present, the height of ordinary rooms is relatively low, only (2.4-2.8) m. In order to give consideration to the listening effect, it is best to make the length and width close to 1.7: 1. Generally, the listening room is larger than 15 square meters, so the distance between two speakers is about (2-2.5)m during stereo playback, which is beneficial to the expansion of stereo image group.
Step 2 show your skills
(1) Indoor furniture should be placed for easy use and the bedroom should be beautiful and elegant. When decorating furniture, try not to take symmetry to prevent sound dyeing.
② Do not place objects that cause vibration indoors, such as metal paintings and exhibits with thin and light shells. Their vibration will affect the playback effect.
③ Place combination cabinets, bedroom cabinets, big sofas, etc. The sound absorption effect is obviously improved in the room, especially the low frequency effect. Generally, the living room cannot be equipped with a perforated plate resonant cavity, which is inconvenient to absorb low frequencies. This shortcoming can be overcome after placing the wardrobe.
(4) hanging thick curtains on glass windows, hanging tapestries on walls, laying carpets on the ground and laying bedspreads on beds can all improve acoustic conditions. Hanging curtains have good transmission performance for low frequencies, and glass windows have good sound absorption performance for low frequencies, which complement each other.
3. Fine tuning of reverberation time
① Indoor reverberation time should be controlled within a certain range. If the reverberation time is too long, and the sound is trailing and echoing, the sound absorption can be increased by laying carpets and hanging decorative curtains, and even dolls, plush toys and flowerpots can be arranged indoors to improve the sound absorption effect.
(2) If the indoor reverberation time is too short (which is less common in the living room) and the sound is dry, it is necessary to increase the reflecting surface, and you can hang glass mirrors and paintings with large glass frames to improve the indoor sound quality. There are many ways to improve the sound quality. For example, hanging various chandeliers indoors, pasting calligraphy and painting on the wall or hanging handicrafts can not only beautify the environment, but also improve the reflection characteristics.
(3) Bookshelves, books, magazines, CDs and analog records are placed indoors. Filling bookshelves with different sizes can absorb, reflect and disperse sound waves; Books of different sizes and widths can be placed on each layer of the bookshelf, which can produce irregular surfaces. For those large reflective walls that are difficult to deal with, trying to put this bookshelf can also improve the listening effect. In short, through various adjustment measures, people can finally hear beautiful and harmonious sounds from the speakers.
The above questions are answered by Zhuhai Hainachuan Audio, hoping to help you.