The types and quantities of equipment included in each system of professional sound engineering are quite large. The use methods of various equipment and the working modes of the system are different, so the equipment debugging of the system is also different. However, because the types of projects are also very different, it would be too long to introduce the equipment debugging methods of all types of projects one by one, Therefore, we will only explain the steps of equipment commissioning in the later stage of general projects.

Preparation before commissioning. The commissioning of sound engineering is a work that requires both technology and experience, as well as serious and responsible spirit. When the design, model selection, layout and construction meet the requirements, the commissioning of equipment and systems is the only way to meet the design requirements, so full preparations should be made before commissioning.

These preparations include: preparing necessary instruments and tools, such as phase meter, noise generator, spectrometer, sound pressure meter and multimeter required for audio debugging; Prepare all engineering design and construction drawings; Carefully read the installation and operation instructions of all equipment, and prepare the operation instructions of important or special equipment for standby; What's more, it is necessary to prepare that there are no irrelevant personnel on site before the commissioning work starts to avoid interference with the commissioning work.

Secondly, check the installation and connection of the equipment according to the design and layout requirements. Different from the construction steps of the project, the idea of checking the installation and connection of the system and equipment in the equipment commissioning stage is to take the whole system as the outline, so the purpose is to find problems, and it is also easy to find problems, so it is necessary to check before commissioning; At the same time, during the inspection, ask the construction personnel if there are any remaining problems during the construction, and make sure that there are no problems with the power supply line and voltage.

The other is to set all the equipment accordingly. Because the composition of each system equipment is different, the working environment of the equipment is different, and the signal processing and transmission methods of each system are also different, the significance of setting is to make the equipment work in a reasonable state, so that there is a good foundation for cooperation and control between equipment.

The setting of the audio system includes: the voltage level of all equipment should be set as the power supply voltage, and as high as possible; The signal transmission level value of the system shall be set as consistent as possible to ensure that the signal transmission reference point is the same; The working status of the power amplifier is stereo, parallel mono or bridge mono, the protection status is not set, the selection of input transformer, etc; What is the frequency division mode of the speaker and where is the high-frequency attenuation position; Signal input attenuation and signal marshalling of the sound mixing console; How to select the gear of peripheral equipment, whether to bypass, whether to linkage, whether to activate, etc.