【 Weak current College 】 resolve computer connected to the microphone noise---Power By 【 China power house network 】

We all know, the listening room acoustics environment on the audio system for playback effect is far more than any other kind of audio equipment greater impact. Although there are many ways to improve the acoustic environment, but room for excessive processing but misleading. For example, the proliferation of course sounds very good, sound diffusion let all scattering and can avoid ECHO, however, if you let the room surface to spread everywhere, will enable stereo positioning of sound and image, sounds are spread to the Quartet to precisely focus to sound like.
Small room acoustics of the situation is more complex. Although some audio books as specifically, but not exactly the point of view, the problem is that there are many inconsistencies, different experts also made different views. But on the Interior of the acoustic environment and speaker placement and listening position on audio playback effect of significant impact is agreed, this article will talk about those esoteric principle as well as those strange treatment room acoustical environment. We explain some simple and practical and everyone can do processing Interior listening environment.
1. at the ground floor a thick carpets. The most likely to be serious reflection on the waves of fear is ground. Although carpet on low-frequency is not very functional, but the first thing to do is to try to absorb some high frequency of reflection. In the direct sound after head 5ms (MS) or later on a few milliseconds of early reflections, will become part of the direct sound and because they come from the same direction, which would let people hear. Should avoid sound pure sound to intermingle issued some ground reflected the high frequency sound. And because it is not likely to add some on the ceiling, so soft cushion, if not settled on the ground to carpet, there will be two parallel and reflective surface, strong sound waves will be on the ground and to reflect back and forth between the ceiling, so that the sound becomes more difficult.
2. in the window curtains. In some of the concert hall, always avoid equipped with reflective glass. In the listening room, because the surface of the wall will close, because of the glass produced by reflections easily will make you feel sick. You can try to hang up the window can be opened the curtains, listening to music when they pull up the curtain. Also, do not put in the listening room with glass front panel bookcases and furniture.
3. try to sabotage the reflection of parallel walls. Parallel to the walls and the floor and ceiling, are likely to produce endless reflection, thus the "echo" multiple times, so that the sound becomes more difficult. You can force slap hands, if you hear an echo, it describes some problems listening room. Bookshelf, especially the mess at your ease some books on the shelf as acoustic diffuser, can cut off those parallel surface reflection, although there are a number of specially crafted sound diffusion screen sold, but in the listening room placing several shelves can play a very good effect.
4. in the treble unit "mirror reflection" on some foam. Unless listen empty marquee as if the Church is so high, otherwise it should be in every sound treble unit "mirror reflection. when the ceiling mirror reflex point posted in thickness but few mm but not exceeding 0.1m2 bubbles, Interior listening environments has been improved.
5. do not let the reverberation is too long. In the mirror reflex point paste some foam blocks and does not make room there are too many changes. However, if you paste large blocks of foam or hang up fairly thick curtains, because the sound-absorbing too much and having to replay music sounds a sleepy feeling. Thin and light-absorbing material to properly absorb high-frequency, but has no effect on the low frequency. Typically, the thickness of the sound-absorbing material is roughly simultaneous wave of half the wavelength equivalent, will play the role of the sound absorption. For the Sonic 10khz, wavelength, and therefore only 3.4cm, due to the thickness of a few centimetres high frequency foamed can absorb; however, because of the low-frequency 200hz wavelength has large 1.7m, with thickness more than a few centimetres of bubble naturally no anymore. Because of the listening room will obviously be the existence of the pitch. People hear will mostly with a reverberation of sound field, and high-frequency more absorbed and low frequency absorption.
6. may slightly closer to some speakers to listen to.
Sometimes, even for something to try, it may wish to sit in a small place near the speakers to listen to music. In fact, there are many people who are often as sitting in a place far away from the box to listen to music, which is actually listening room instead of listening to the speakers. Nearer to go to the felt joy, although it is unlikely to hear directly from the speaker in the sound so real, but as a standard of comparison should audition not without merit. Mention, in fact, almost all of the sound recordings in the recordings, irrespective of the recording is good or bad, are all in the "near" to listen.
7. ground reflection is sound with a source. Previously mentioned, with sound-absorbing material can absorb the ground and the ceiling of the high frequency part of the early reflections. Here the early reflection is direct after head 5ms arrive within those reflections. So rapidly it reflected sound waves will come with direct access to the sound. These early reflection of two top octaves will only generate some harsh sound, but the band sound occurs. In the ground reflection as well as room for some basic treatment eliminating the ground reflection. Elimination of reflection, in the frequency band is ideal, the response is smoother. This is why the line sound source-speakers would confuse some buyers. Because there is no longer a delay of ground reflection (or more precisely speaking, the floor and ceiling, and a combination of sound no longer produce reflection), so the speaker's sound with it will lower the better. However, for point source-speaker, will still try to purchase the sound can be dyed in small, the problem is that in order to get such a good performance, we have to spread on the ground in large blocks of foam. Of course, you can listen to the audio

Temporarily put on music, do not listen to it away. Only at the point on the mirror to shoot some thick foam can solve the problem.
However, the reflection on the side wall is another **. In order to be able to add some "space", some people would want to some of the side wall of reflection as well. As the concert hall is extremely large and spacious, the side walls of reflection will experience a certain amount of time is reflected back. So let people listen to will be pleasing to the ear. But at home listening room, because of the side wall of the reflected too fast, it's not so nice. Ever tried in mirror reflex points on a sound-absorbing materials, and also close to the side wall of a Department dedicated to placing some bookshelves to spread the sound waves. However, it should be how to deal with but also through actual test. Note If you want to use strong some of side wall reflection to increase the sense of space, but also specifically to buy those off-axis response is quite good speakers.
8. in order to obtain the most appropriate low-frequency will be repeated on the pendulum speakers. About the speaker's place, the issue is more complex, this can make some simple introduction. There are two of the speakers have an impact factor, a trend is the Interior of the resonant; another is the room of the boundary on the speaker impedance of load effect of radiation. According to allison (Allison) effect, when the boundary from pronunciation unit distance is one of the nine, pronunciation unit wavelength will not be loaded by reflection of the border. Therefore, speakers at the frequencies of sound radiated power will be less. Although you can use computers and specialized programming software to determine the speaker and listener, but the best place to spend a few hours to be repeated on the pendulum is very recommendable. Remember the speakers to the subwoofer in pronunciation unit off the ground, side walls and back wall distance should try to pick the same numeric value. In accordance with the general principle of placing the spacing in the middle of the square should be general and maximum spacing and minimum spacing of the product. If the speakers are placed in the corner near the place, the bass will be enhanced.
You can use the "vibrato" (warbletone) and acoustic pressure level meter for testing if the speakers are placed in a position to hear more of the following sound, 300hz will prove that already in place speakers. If there are conditions for use of a spectrum analyzer rta, it is easier to identify the speaker set-up. For the placement of the speakers should be patient, have repeatedly tried and not discouraged, because through the hard work it will be a pleasant surprise. As long as the original buy a pair of speakers, in upholding repeatedly try to swing back we will find that their own audio equipment is really not bad.