Common speakers are positioned
In the case of sound, how much weight does the speaker position account for? If you want to ask me like this, my answer is: to make the sound good, space conditions, equipment collocation, speaker positioning and home fine-tuning four major items are indispensable. Among them, the speaker positioning is a method that does not cost money but can make the sound sound good, so I would like to say that the speaker positioning is not 25% important, but 50% important. If you don't believe me, please carefully try out the different ways of positioning the speakers, and I think your mind will change then.
Before I tell you how to implement the "positioning method", I would like to reveal to readers an important concept, that is, "the speaker and the listening space are one", the various manifestations of sound are generated in the interaction between the speaker and the listening space. Or, more to the point, the choice of space, speaker placement, and listening position is an interactive one, especially if you can find the best balance among the three, you can make the sound sound good.
The first method: 317 proportion method
Methods: The room length was divided into three equal parts (three), the speakers were placed at one third of the length (one), and the interval between the two speakers was 0.7 times the length of two thirds of the room (seven). The speaker should have a slight inward projection Angle, but no inward projection is possible. The listening position should not be attached to the back wall. Effect: This method is applied to the space with large size and uniform proportion (for example, about 1:1:25:1.6 or about L: 1.6:2.5), so as to obtain a balanced sound and a wide and deep sound field. This is the audio forum often recommended readers to try the pendulum method.
The second method: the ratio of three to three
Methods: The room length was divided into three equal parts (three), and the width was also divided into three equal parts (three). The speaker was placed on the first equal part of length and width (one). The speaker can have a slight inward projection Angle, even without inward projection, and the listening position should not be against the back wall.
Effect: This method is suitable for the space with large size and uniform proportion. It is consistent with the spirit of the "317 proportion method", the only difference with the "317 proportion method" is that the interval between the two speakers is narrower. This method also produces a balanced sound and a wide and deep sound field. The chief editor of TAS magazine likes this approach.
Third method: screw hole pendulum method
Methods place the speakers between one third and one half of the length of the room. Then place the two speakers as close to two over the wall as possible (if the room is very wide, it is not necessary to lean against the side wall). The inward projection Angle of the two speakers should be greater than 45°. Listen between 0.5 and 1 m after the point of intersection of projected lines.
Effect: This method is specially for the shortcomings of treble too sharp, tenor too thin and bass not enough. Moreover, the best results can be obtained in the face of many harsh environments. This is the "sound forum" for the general bad space provided by the effective pendulum method.
Fourth method: equilateral triangle method
Method: The first condition is that the speaker should be away from the back wall (at least 1 meter above) and the side wall (at least 0.5 meter above). The second condition is to draw the two speakers and the listening position as an equilateral triangle. The third condition is that the inward projection Angle of both speakers should also be 45° or more. The fourth condition is that this equilateral triangle can be large or small. The room is small, and the square is smaller when the power of the rear stage is not large. The room is big, the equilateral triangle is bigger when the power of the rear stage is big.
Effect: This is commonly known as the near field listening method. It has the advantage of reducing the excessive interference of the four wall reflections on the direct sound of the speaker, thus obtaining a good sense of positioning and a wide and deep sound field. This is the most audible, most direct, the most clear details of the pendulum method. Many commentators prefer this method in their comments on sound systems.
The other four are omitted.
This is the old text of Mr. Han-sheng Liu from Taiwan. Hansheng Liu is an old-timer in the field of fever. He has devoted a lot of efforts and made a lot of contributions to the popularization of fever. But in the context of Hi-Fi metaphysics in Hong Kong and Taiwan, not all of his essays are immune. But this essay is very scientific. In fact, in addition to these common names, most of these positioning methods have a formal foreign language scientific name, but Now I can not remember (great Sweat)...
Ten tips for choosing a speaker
Speakers are the most difficult to buy audio and AV equipment, the reason is that many brands, often let people do not know what to do. However, speakers can be judged by playing music, from which to choose a good speaker.
Tonal natural balance
Speakers and instruments should be replayed as close to the original sound as possible and not too distorted. The sound should be smooth and noiseless, no strong and weak sounds (peaks and valleys) should be heard, and middle and high frequencies should not be too loud or held back. Find instrumental recordings with a wide range of frequencies (such as piano music) to play, and listen for tone variations in low, medium, and high scales.
1. Frequency balance
Can listen to the sound of different frequency band in turn. The bass should be compact, clear, and precise in pitch, not drabbling, muddy, or indistinct; As the main part of music, the middle band is more important. The human and instrumental sound should be natural and detailed, not too loud or dull, nor too bright or light, while the high pitch should be wide, air free and extended, without screaming or fading.
2. Analytical force
Listen closely to see if you can hear details in the music, such as the fading of cymbals or pianos, or the tone in a concert hall or jazz club. If the low-level details are hard to hear, the speaker lacks transparency. This is also the difference between a good speaker and a bad speaker.
3. Transient response
The speaker should be able to reproduce the transients in the music. The sound of the drum or guitar should be strong and precise, not "surprising", "excited" or "slow" and "slow". In addition, naturally decaying sounds, such as cymbals and the "trailing tail" of voices, should gradually fade away rather than suddenly stop.
4. Dynamic range
Sound playback situations at low and high levels should be compared. Ideally, the speakers should be able to play continuously from the lowest sound to the strongest orchestra, without losing some of their power over silent parts or very loud passages.
5. Sound positioning and sound field (stereo)
Listen to the orientation of the sound image. Note whether instrumental or human sounds come from a spatial sound field, as long as the speakers are properly positioned indoors.