What is the emphasis on the placement of sound? What is the emphasis on the placement of sound?

1, correct placement of speakers. According to the acoustic environment of the room (such as the size of the room, the distance of the room, the decoration, etc.), the speaker placement will be different, so you can try different speaker system placement methods until you feel that you have obtained the best acoustic effect.

2. Judging from the sound channel structure of the current speakers, there are roughly 2.0 bookshelf dual-channel speakers and 2. 1, 4. 1, 5. 1, 7. 1 etc. X. 1 speakers, and the corresponding number of speakers is 2, 3 and 3 respectively. In this way, it is not a simple or even negligible thing to place them correctly and let them emit "sounds of nature" according to your wishes. Especially the multi-channel loudspeaker system, its main purpose is to build an accurate and complete sound field, which is a basic requirement for PC cinemas, and to achieve this goal depends on the correct placement of loudspeakers.

3. At present, there are various ways to place speakers. For example, Dolby Laboratories recommended "professional" pendulum method, and there are seven common typical bedroom space pendulum methods, namely, the so-called in-axis method, regular triangle method, 3 17 ratio method, 33 1 ratio method, long back wall pendulum method, wall pendulum method and diamond pendulum method. Below, I will make a popular explanation based on the current sound channel structure types of speakers and these common speaker placement methods.

4. Basic placement of bookshelf 2.0 speakers. The most typical method is the "regular triangle method", which requires a pair of speakers to be arranged in a line facing the listener and placed on both sides of the display, and the distance between the two speakers is 1.5~2 meters. Note that the speaker should be separated from the back wall and side wall by a certain distance (more than 20~50 cm), because the inverted holes of 2.0 speakers are generally rear. If the speaker is close to the back wall, the sound wave in the inverted hole cannot be completely released, and the sound field effect will be greatly reduced. Some speakers have to rely on the reflection, superposition and mixing of walls to have a better bass effect. The speaker should not be too close to the side wall to prevent the reflection of the side wall from changing the propagation direction and intensity of sound waves and affecting the sound quality. Then let the speaker and the listener form a regular triangle with an angle of 45, try to make them on the same plane, and let the listener sit in the so-called "emperor position" to get the best listening position and sound effect. This regular triangle can be large or small except that its angle remains the same. The square is smaller when the room is small and the rear strength is not great; The regular triangle can be enlarged when the room is large and the back force is large.

5. Because of this arrangement, the distance between the listener and the speaker is about one meter, and the listener can't sit still in the "emperor's seat" like the users of Hi-Fi speakers, so the "regular triangle method" is also commonly known as the semi-free near sound stage listening method. Its advantage is that it can reduce the excessive interference of the reflected sound from four walls on the speaker direct sound, and it can obtain a good sense of positioning and a wide and deep sound field. This is a way to hear the most, the most direct and the clearest details.

6.X. 1 Basic placement of multi-channel speakers. Common X. 1 speakers are 2. 1, 4. 1, 5. 1, 7. 1 and so on. Here, let's talk about the concept of * * in their "1" channel. Take dolby digital 5. 1 channel system as an example. It not only provides five full-band channels-left, middle and right channels and surround sound, but also has a sixth channel, namely low-frequency effect channel. This channel can provide shocking subwoofer effect, and its bandwidth is only one tenth of the audible frequency range (that is, one tenth of the bandwidth of other channels), so it is called "1" channel, and the corresponding speaker is subwoofer (commonly known as subwoofer).

7. In theory, there is no hard and fast rule for placing the subwoofer, because the human ear is insensitive to the orientation of the bass, that is, the bass is basically directionless or weak, so the subwoofer can be placed anywhere in the room, but in fact, only the real AV subwoofer can do this. Generally, the subwoofer of multimedia speakers contains at least 300Hz, or even 3000Hz. The subwoofer will emit a lot of low-frequency and high-frequency sounds, so it is suggested to put the subwoofer under the computer desk, just below the display, that is, on the ground where the front of the listener is in line with the front channel, so as to obtain better results. If the subwoofer has transverse or backward reverse holes, it should face the wall and keep a certain distance from the wall to enhance the bass effect.