Now that the economic environment is not good, the equipment does not dare to upgrade. As for second-hand equipment, in addition to the hidden dangers of quality, its rising price has also gradually reduced its "price-performance ratio". So what if you want to improve your system performance?
According to my personal point of view, "improving room acoustic conditions" may be the only way to go. Before we also introduced the home theater decoration acoustic treatment precautions "small room home theater acoustic decoration design considerations", the old snail editor also shared this experience: "Old snail: talk about home theater decoration acoustic treatment that matter "Children", it is worth reading carefully, today Xiaobian said how to improve the room acoustic conditions:
In the past, the system was upgraded, and many of my friends were limited to changing equipment or changing the wire. This is convenient and easy to save, but the improvement is often partial and unpredictable. For example, if you change a speaker cable, you feel that the overall energy is more abundant, the low frequency is more powerful, but at the same time it may bring high brightness, The thickness of the intermediate frequency and the loss of moisturizing sensation, so you start to recite the sweet, rich tone of the old love, or hope to spend more "a little" money to find a more "comprehensive" line...
In fact, there are many friends who fall into such a strange circle and unexpectedly produce a lot of troubles. The results of improving the room are usually comprehensive and the results are relatively easy to regulate. More importantly, it costs less, but the effect is more significant and more thorough than changing equipment. Once the basics of the room are laid, even cheaper equipment can make unexpected sounds, and when there is a chance to change into advanced equipment. At the same time, the effect of the lifting can be fully reflected; on the contrary, in the room with poor acoustic conditions, the performance of the advanced equipment is usually greatly reduced, but the effect should not be shown, which is actually a waste, another On the one hand, it also makes the high-grade equipment "not worth".
Since "making a room" is so effective and so important, is it possible to act now?
And slow, before you start, you must first look at whether there is room for display at home! Because, I see that most of the current commercial housing layout, suitable for use as a fever room is very rare. A few days ago, I went to a relative's home to help him see which room is suitable for audio. He lived in a certain Linjiang brand, with a housing area of ​​more than 180 square meters and a market value of more than one million. Going to see, the living room is big enough, it has more than 40 square feet, but the shape is hexagonal, and its name is "diamond shape". This room is definitely not good; the owner's bedroom, the child's bedroom, the old man's bedroom The size of the kitchen and the restroom (multiple) is also large enough, but it is also impossible to put the sound; in the end, only one study room is available, and the owner also made a great hesitation before agreeing to put the sound into the study. Who knows a quantity, but it is 3.2 × 3.4 meters in size, such a room to get a good sound, it is simply called Mission Impossible! Afterwards, I think of it - the space of Noda, there is no place for a sound system. I can’t help but feel a little sad...
Another friend used equipment that was very advanced. There were Dynaudio Acoustic monitors, GRYPHON amps and Krell SACD machines worth more than 100,000, but he always complained that the sound was not good. I went to the scene to see it. It was found that the living room of the equipment was more than 60 square feet, but the left side of the equipment was a large balcony, and the right side was connected to a large dining room. There was no side wall reflection at all, and all around it was a light wall. In such an environment, daylighting and air convection are good, but when you open the sound, it is low-frequency, the image is completely absent, the sound level is messy and weak, don't say what the appeal of music is, at the very least. The details, the sound field, and the dynamics are not talked about. Only he is advised to hurry to hide the system for this system.
Therefore, before you start, you must first look at the candidate room "innate conditions" is appropriate, so as not to spend the effort to get the effect. In general, the room to be used as a listening room should meet the following conditions:
1. It is best to have a narrow and long rectangular shape. The dimensions of length, width and height should not be close or multiply;
2, airtightness is good, only a few doors to enter and exit, there are too many corridors, aisles, windows (especially glass floor to ceiling windows), or directly connected to other rooms (such as the living room connected to the dining room) is not ideal;
3. The acoustic characteristics of the wall around the room should be relatively close. For example, the side walls on both sides are hard walls, but if one side is a hard wall and the other side is a soft bag, it will not work;
4. If there are multiple spaces that meet the above conditions, then the largest area is preferred.
Once you've confirmed your room, you're ready to start building your home theater video studio. For the acoustic treatment of the audio-visual room decoration, you can read this article: "Notes on the Acoustic Decoration Design of Small Room Home Theater", this article will not go into details. However, there are a few issues that deserve our attention:
1. According to the decoration of such articles, the project is usually cumbersome and complicated, and it must be rigorously calculated. The average person is difficult to master in practice. It is likely to waste energy and financial resources, but it is a "painting tiger is not an anti-category dog". As a result, it is almost impossible to disassemble and reload. It can be said that there is no retreat, and the owner has only troubles;
2. Even if the operation of this listening room is completed, the acoustic characteristics are still unpredictable: What is the reverberation time? Is the indoor frequency response flat? What is the suction volume of each frequency?... The owner’s heart is unrecognizable. Can only "follow the feelings." In the usual contact, it is not uncommon to have no bass and no treble due to the large-scale splint ceiling and soft bag; other enthusiasts are blindly pursuing the "diffusion" effect, and the ceiling and wall in the room are installed as much as possible. Wood diffusing panels, but they do not know that in addition to the diffusion effect, these plates will actually absorb medium and high frequency. If used too much, the sound will appear dry and dead, without any vitality;
3, the decoration methods introduced in this article are usually only suitable for new homes or the original renovations are all over, so for those who have been renovated or do not want to "big move", did not give any good solution.
In response to the above problems, I propose a "simple decoration" program for the listening room, which is based on:
1, no need for complicated decoration and calculation, although the effect is not necessarily the best, but at least it is much better than not doing acoustic treatment;
2, strong flexibility, do not need to "break the bones" of the room, can be quickly restored to the original state;
3, the style is in line with the aesthetic view of the average person, there will be no "egg shell", diffuser board and other objects that are more eccentric in the eyes of others, the overall look and feel is similar to the general study;
4, the operation is relatively simple and convenient, friends who are going to decorate or have been renovated can try. The “simple decoration†scheme still follows the principle of “pre-hard, medium-suction/diffusion, and rear suctionâ€, that is, the rear wall of the speaker should be a hard, cavity-free cement brick wall; the sides between the speaker and the listening position Wall surface, depending on the situation, can be used for sound absorption, diffusion or both;
Listen to the wall behind the position for sound absorption. The specific approach is:
1. The back wall of the speaker must be hard and full, depending on the situation, it can be attached to the cultural stone with obvious contrast, which will achieve a certain diffusion effect. If you feel that the wall is reflecting more strongly, then hang a woolen blanket that is as thick and large as possible.
2. You can make a row of books/records with two wooden bookcases on both sides of the side wall between the speaker and the listening position. Do not door the bookcase, just use a thick velvet to make a curtain that can be opened and closed. Depending on the actual sound effect and personal taste, select all pull up, or not pull up, or half open and half closed during listening, and obtain the effect of sound absorption, sound amplification, sound absorption/diffusion on the side wall. If your woofer has a large caliber or if the standing wave of the room is serious, you should make the lower part of the bookcase into a wooden door and a closed cabinet. It is filled with soft quilts, blankets and the like. Material, which will play the role of absorbing low frequency.
3, listening to the location, do not lean against the wall, and then close to the wall behind the listening position to make a wooden cabinet, using a closed thick cabinet door, which is also filled with quilts, blankets, etc., to absorb low frequency; at the same time, the door Outside, the thick velvet curtain should be hung on the whole surface to absorb the medium and high frequency.
4. Between the speaker and the listening position, a wool carpet should be laid as large and as thick as possible to absorb the medium and high frequencies reflected to the ground.
5, the ceiling should be left as far as possible, the higher the height of the room, the better, so that the speaker has enough breathing space, while also preventing the middle and high frequency from being sucked excessively, making the sound lose vitality and vitality.
The cabinets mentioned above are very practical furniture, which can place a large number of books, records, and sundries, and at the same time play the role of tuning, which is called a multi-purpose. Moreover, the layout of the entire audition room is simple, beautiful and practical, without wasting extra space; when you remove the cabinet, it becomes an ordinary room for other purposes. I have guided several friends' listening room decoration projects according to this program, and all of them have obtained satisfactory results. Interested friends may wish to try. More home theater knowledge, welcome to pay attention to home theater network WeChat: cnhifi, have questions at any time to consult.
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