[Audio Commissioning] Home Audio Equipment Commissioning Steps Home Audio Installation and Commissioning
Home Audio Equipment Installation and Commissioning Steps
After consumers choose the sound that suits them, the next job is to install and debug the sound. Different environments have different installation and debugging requirements. Next, I will introduce to you the installation and debugging of the audio for the home environment.
Installation of front channel speakers
The front channel consists of two main speakers and a center speaker, referred to as the LCR channel. These three speakers are responsible for most of the sound in the software. Therefore, it is very important during installation. According to THX’s example, the best way to install LCR speakers is to install all three speakers at the same height and at the ear level of the listener when sitting, so as to obtain the best sound field and correct vocal dialogue positioning . However, this is not necessarily the case for the home environment of the vast majority of consumers.
For consumers who do not use a sound-transparent screen or use a TV, they cannot install it according to the above method. However, you can try to install the center speaker on the upper or lower edge of the display device, and then adjust the radiation direction of the speaker. However, there is one thing that must be noted in this approach, that is, the angle between the installation height of the center speaker and the L and channel-only speakers should not be as large as 10 degrees, so as not to damage the sound image positioning and sound field of the vocal dialogue.
In addition to the above installation methods, users can also try to install the LCR channel audio on the upper or lower edge of the display device at the same time. Then, make the same adjustment to the radiation directions of the three speakers, so that an ideal front sound field can also be obtained.
Surround Speaker Installation
The currently available surround speakers include dipole radiating speakers and traditional direct radiating speakers. For the current 7.1-channel AV system, 4 surround speakers are required. In general, 4 dipole radiating speakers or 4 direct radiating speakers can be configured, or dipole speakers are used for side channels and direct radiation speakers are used for rear channels. These speakers also have some specific requirements for installation. For example, direct radiating sound, like the front LCR channel, points the radiation direction to the listening position, and for dipole sound, it is necessary to point the “zero area” of the sound to the listening position.
In terms of the installation height of the audio, according to the example of THX, the installation height is about 1.8m-2.2m, then consumers need to use the audio bracket to fix the audio on the wall. Therefore, consumers can go to the shop selling racks in the electrical city to buy some suitable audio brackets to install the audio. If you can’t find a suitable bracket, you can consider customizing one according to your own speakers, but the cost will be relatively high.
Setting and placement of subwoofer speakers
Subwoofer speakers are mainly used to make up for the lack of low frequency lower limit of the main speakers. It can also play a role in increasing the low frequency energy. Therefore, consumers must set the low frequency crossover point of the AV amplifier before use. When setting the crossover point, it should be set according to the sound you choose. For example, if you choose a THX-certified home theater audio system such as M&K, Atlanta, etc., you can set the crossover points at 80Hz. As for the other speakers, you have to set the crossover point for each channel based on the low frequency response of each speaker. After the crossover point is set, the subwoofer can be positioned.
So where is the best place to place the subwoofer in the room? Since the low frequency below 80Hz is almost non-directional, in theory, the subwoofer can be placed anywhere in the room at will. But in fact, consumers need to try to put the subwoofer in different positions in the room to listen to it to find out the best placement point. In general, consumers can place the subwoofer in the front.
Overall tuning of the sound system
Overall tuning of the sound system. First measure the distance between each speaker and the human ear (generally the distance between the tweeter and the human ear), and input the measured distance value into the AV amplifier. Then consumers use a sound pressure meter at the listening position to measure the output sound pressure of each channel, and independently adjust the output level of each channel in the AV amplifier according to the reading, so that the sound pressure of each channel reaches 80dB reference sound pressure value. Then the audio setup is basically complete.
After completing the above two steps, it can be considered that the basic debugging has been completed for the ordinary consumers of Dajiafen. However, for some consumers who pursue better results, it is recommended to use an equalizer to correct the frequency response curve of the room. Using an equalizer is a good option when the listening environment is relatively less than ideal.
Before using an equalizer, the first condition is to understand the frequency response curve of your room. Then, make corresponding attenuation or gain on the equalizer according to the room frequency response curve. However, it should be noted that when adjusting the equalizer, it should not be too flattened. This is because adjusting the gain of the corresponding frequency band in the equalizer actually increases the output level of a certain frequency. If too much gain is adjusted for a certain frequency, the amplifier will be caused by the excessive level given by the front end. Burn out, so be careful when adjusting.
Summary:
Through the above detailed analysis and guidance, I believe you have learned a lot about the installation and debugging of home audio equipment. I hope that in the future, based on a better understanding of the home audio you have purchased, you will continue to adjust your home audio to obtain better results.
Declare: The above methods are derived from the program system index or shared by netizens. They are for your reference only and do not represent the research views of this website. sex and authority.
