As the terminal equipment of the sound system, the sound system is like a human voice, which decides the advantages and disadvantages of a sound system at a very large level. It can be said without exaggeration that selecting a pair of good stereos is the root of the success of a set of stereos, and no carelessness is allowed. Now let's talk about the common professional knowledge of Shandong stage lighting and sound.
1. Inspection sequence of inductive power on condition of equipment casing
Inductive electrification of equipment enclosure - whether the power supply system line is damaged - whether the line phase difference is appropriate - whether the equipment grounding device is appropriate - whether the working voltage is appropriate
2. The sound of the audio system is not enough
The sound of the audio equipment on the conference stage is not enough - is the route pulse signal of the power amplifier and the audio set properly - is the audio line connected firmly - is the phase difference between the power amplifier and the audio consistent - is the attenuation coefficient strength of the equalizer appropriate - is the starting pulse signal of the pressure limiter appropriate
3. Co shock and feedback in sound field
Generate common shock chord feedback - check whether the room frequency response has a peak point - whether the room structure and decoration design are effective - whether the splitter point and bottom tone gain value are effective - whether the room reverberation time is too long.
4. Causing interference noise
The sound system has noise - dimming interference - is the sound and light switch power separated - is the light switch power supply and control route too close to the analog signal line - is the silicon box too close to the audio equipment
Sound system software has noise - is data signal transmission effective - is all power lines shielded properly - is the grounding device of data signal appropriate - is the phase difference of switching power supply consistent for all audio equipment
5. Light cannot be controlled
In the sound and light design scheme, the light cannot be controlled - is the program flow of the control panel appropriate - is the detailed address number of the lighting fixture appropriate - is the wiring method of the control line appropriate - is the shielding of the control line poor or disturbed - is the limit switch adjustment of the lighting fixture appropriate - is the touch of the power switch of the light power supply system excellent.
This is the end of the common professional knowledge about stage lighting and acoustics. If you have any information about this, please come to our website http://www.opensourceagility.com/ Consult!