Saturday, December 18, 2010
【 Weak current College 】 room decoration ([12 pieces] to create a balanced listening space)---Power By 【 China power house network 】
[12 pieces] to create a balanced listening space
Personal thought, room acoustic conditions on audio equipment sound effects greatly, but often is ignored most easily. I'm afraid the enthusiasts in the country in more than 80% is the absence of a more reasonable acoustic conditions. Acoustic conditions this trick requires a certain expertise, coupled with the necessary corresponding decoration steps, not-for-machine, change line like direct, convenient, so that a considerable part of enthusiasts is know to exist on this issue, some don't know how to start, there is fear of the trouble even the intention to avoid this problem. This makes it very easy to add sound system in the sound problems were blamed for equipment, most simply is the switch, the switch, then replaced the machine, in addition, you'll have a fever of skill without fundamental progress, you can easily become the slaves of equipment. But those who do not frequently changes the machine you're upgrading your friends, go for help, on his own set of "chicken" is also a love-hate!
In fact, why do we not place from the most basic to? I think that improve your listening environment of harvesting must be more than you swap equipment much! because the former is directly on the promotion of sound quality, while the latter is only on the enhancement of timbre finishing degree and will always exist, and uncertainty. Remember, in a "wrong" room, no matter how advanced your equipment, systems of sound is wrong, even if it has so-called excellent timbre and sound field! we often complain that their equipment is not enough but the series do you realize that you have enough "series" room is your hardware performance greatly discounted? I have a acoustic conditions quite ideal for private listening room stay over, except for the CD, all domestic equipment, worth $ 5000, sound? I think those "error room" 20000 level system wasn't their opponents, the strong sense and deep in the sound field has been impressive.
After reading many letters to the editor, in many cases all complains of his system to the frequency and high frequency of loose, dry, excessive, or locate a fuzzy, and so on. In fact, the problem occurs in large part is unreasonable acoustic conditions. If your equipment is a carefully designed product, distortion, frequency response, signal to noise ratio, and other physical indicators, perfect, it does not need to hurry to change machines, because it is a "normal" equipment. Its series may lower, but by no means a "bad" equipment.
Why equipment there will be high and low levels of? the author the following analogy I wonder if appropriate: a healthy, normal woman, is there looks normal and beautiful evocative? unusual woman to the man between, there will be a stunner lots and lots of layers, men according to their appearance, temperament, build, wisdom, and many other factors, combined with its optional standards and their own strength to his ideal woman initiated pursuit, as we choose a wide range of audio equipment. But remember that only a series of equipment without the "good" and "bad". The room was real and is a "good" and "bad", so it is more essential and decisive factors.
How to tell if your listening environment acoustics? the simplest way is to play above the Hugo fever tiandie (1) frequency test signal, if certain frequencies of sound pressure particularly strong or weak, in particular the frequency is not a smooth transition, the frequency is often there is a "peak" and "Valley". About "Valley", "fill" the issue is more complex, in the present conditions of amateur is more difficult to obtain satisfactory results can only be achieved by setting the bit to some degree of compensation. Fortunately, we are currently in the untreated rooms the largest face or "peak" questions, so guys always suggest we do sound-absorbing, diffusion of work. For pattern has been set in the room, carpet, double velvet curtains and solid cylindrical cushion, etc. is essential for the school of sound. In addition, smooth walls subject to wall carpet, you can do several tall wooden bookcases, records cabinet (no glass doors), both practical and conducive to the spread of the sound. If your room is decorated, can reference the author mentioned wainscots, flat ceiling, composite wood flooring, decorated in a corner and set the appearance of the cylindrical mineral wool listening material. In short, try to keep your room layout to "soft tones". It should be said that this kind of decoration style absolute compliance with ordinary people's aesthetic standards.
Then, after completing the above would work just fine? the answer is no. Because the design of the acoustic environment is a very complex matter. For General enthusiasts, you do not know to do, is what a specific frequency, also do not know whether they are sucking up just right. Even give you a formula and a variety of materials for sound absorption coefficient tables, you also may not, have the results may not be accurate. For example, the expert lets you do a "perforated acoustic device", then how many holes the? each hole diameter is? I think you are touched idea. What most insurance is requested the acoustics expert, edge decoration edge adjustment. But for most enthusiasts, it seems like with the "Arabian Nights". You see this answer can be very discouraged, feeling that do so many efforts are don't necessarily guarantee success, it is not a vain?, in fact, you can not lose heart! you that the purposeful design of listening room, although not necessarily perfect acoustic characteristics, but certainly better than no after any processing is much better, and that such differences can be resolved without waste of land! this means that after acoustic treatment room of "balance" is not treated properly, the chapter room looks more reasonable number, to reproduce the original music.
In the complete room acoustic treatment, the next step is to set-up through equipment so that your system's sound more balance. Set-up, to a certain extent compensate for the acoustic characteristics of your room is not perfect. Therefore, acoustic treatment plus equipment set-up will make your system sound towards the balance step forward. Equipment put on the most important part is the speaker set-up. Some view, as long as your room by the length and width, you can determine the speaker distance away from the back wall, and each other, regardless of theAcoustic conditions ever the "drop of the seas" applicable approach, the author really doubts. A very simple example, a, b room three-dimensional scale exactly the same, just different acoustic conditions. If you are in the same match, the speakers are placed according to the criteria in the room of one of the X Division. But I'm sure, a, b room sound is bound to be some differences. So, I want to ask: two according to the criteria of the set-up of the system, whether it is a good, or is it b? God bless, you can never tell me--"two are great!". This section is a little taste of world medicine.
Launch of such "set-up guidelines", want to let enthusiasts find pretty sound as soon as possible, I think is good. But the speaker set-up must be available: overnight "thing, more is not" a book to read to the old ". It requires hard work and sweat, requires patience, also need inspiration. Set-up is actually on the direct sound enthusiasts, reflections of energy, phase, and other factors of the combination. Synthesis of the kneading a relatively balanced State. The following is the author of some superficial area set-up tips for reference:
The first step, the speaker on your permit, as far as practicable, from the wall, and the speaker distance between 1.8 ~ 2.3m. Of course, that you want to meet some requirements: (1) after hearing location away from the wall at least 0.5m. (2) the Emperor bit from the speaker also 1.8 ~ 2.3m. (3) in the speaker interval 1.8 ~ 2.3m, two speakers as far away as possible from the side wall. The second step, playing the Hugo fever tiandie (1) frequency from the test piece, the average family 1kHz above frequency rarely appear "Valley", the usual circumstances appear only on the high energy at this time in the side wall of the wall hanging some tapestry there will be a marked improvement. Problem occurred mainly in the following, in particular in 1kHz 56 ~ 600Hz this band, "peak" and "Valley", with a test disc playback, you will find some frequency special weak, some particularly strong, but change is not uniform, not continuous. The third step, the note heard in 56 ~ 600Hz this band, is a phenomenon of "peak", or "Valley". Asahi is the former, shows your lack of low-frequency absorption in the four corners of the ridges and do some fabric wrapped mineral wool sound of long strips. Plus four sound-absorbing body, if there are certain frequencies being sucked up excess, may be appropriate to reduce the sound or the sound a bit later on. If the latter, the low-frequency suck too, in addition to the Internet to reduce some of the low frequency sound-absorbing material, you should put the speakers on the wall back until those are "sucked" to get the most out of low-frequency compensation. The fourth step, the three-step before completion, usually after the work is "sucking" to the degree of frequency recovery is nothing more, but not queued in addition to the stately have small peak point exists, for example by 160Hz sowing to the next traaack200Hz, 200Hzz significantly louder, then you can narrow or broaden the speaker sound is to adjust the distance each time it should be left in, 30cm constantly play test signals and continuously adjusted. The fifth step, once again play test signal. Normal sense of hearing is, in 56 ~ 600Hz this band, from low to high is gradually loud, and each track changes is uniform, should not appear 21 # track special shout, whisper 22track suddenly change,. Next, play with the human voice and drums of the fragment, the attention of the pleural cavity oscillation luck and drum and other detail reproduction and contrast them with a headset (headphones balance of much better than the speaker) if there are significant differences within the row by speaker and backward to improve. Complete these five steps, you set the system should be improved. If you still have some frequency "peak" or "Valley", and you do not want to "fight", it is recommended that you select a high quality Equalizer! Equalizer? when audible frequency has many obvious defects and you're not going to fix it, I think it has lost the Hi-Fi--"high definition" discuss their culvert. I prefer the system sound because the equalizer to change slightly, and not its spectrum such as sawtooth-like ugly! Equalizer you really can make your system's sound has become more balanced, reasonable, or, why the Accuphase also launched expensive DG-28?
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