无论举办何种会议，音响效果往往是决定会议质量的关键因素。会议室的扩声系统、多媒体系统和设备错综复杂。想要获得佳的会议音效，并不是简单地堆迭麦克风、扬声器、调音台和功放。下面来讲讲多媒体会议音响的4个调试步骤内容吧。
No matter what kind of meeting is held, the sound effect is often the key factor to determine the quality of the meeting. The sound reinforcement system, multimedia system and equipment in the conference room are complex. To get good conference sound, you don't simply stack microphones, speakers, mixers, and amplifiers. Let's talk about the four debugging steps of multimedia conference audio.
检查系统是否连接正确。
Check that the system is properly connected.
多媒体会议音响系统的正确连接是会议音频调试的基础。根据系统配置接线图，仔细检查线路连接和供电系统，预设好音响设备的功能按键，确保话筒供电充足。
The correct connection of multimedia conference audio system is the basis of conference audio debugging. According to the system configuration wiring diagram, carefully check the line connection and power supply system, preset the function keys of the audio equipment, and ensure that the microphone has sufficient power supply.
调整扬声器的位置。
Adjust the position of the speakers.
主扬声器应放置在会议主席台的两侧，分体式扬声器底部为中低音扬声器，中间为中音扬声器，顶部为高音扬声器。如果两侧扬声器的辐射区域相互呼应，音质会大大提高。请勿避免在音箱上放置盆栽、台灯或瓷像，以免因音箱震动导致物体掉落而中断会议。
The main speakers shall be placed on both sides of the conference rostrum. The bottom of the split speaker is a mid bass speaker, the middle is a mid-range speaker, and the top is a tweeter speaker. If the radiation areas of the speakers on both sides echo each other, the sound quality will be greatly improved. Do not place potted plants, desk lamps or porcelain images on the speaker to avoid interrupting the meeting due to objects falling due to speaker vibration.
打开功放，设置大电平。
Turn on the power amplifier and set the high level.
确认系统和硬件设备正常后，接通设备电源，打开功放，将电平调到大。在混音器指示灯上将混音器输入增益设置为0诲叠，慢慢向上推混音器输出推子，并根据扬声器中声音的音量调节推子，以达到佳音量。为保证佳调试效果，建议使用相位计检测器检查每个扬声器是否同相。
After confirming that the system and hardware equipment are normal, power on the equipment, turn on the power amplifier, and adjust the power level to large. Set the mixer input gain to 0dB on the mixer indicator, slowly push up the mixer output fader, and adjust the fader according to the volume of the sound in the speaker to achieve a good volume. To ensure good commissioning effect, it is recommended to use phase meter detector to check whether each loudspeaker is in phase.
避免音频啸叫。
Avoid audio squealing.
多媒体会议音响厂家建议将混音器通道推子推到0诲叠，将麦克风放在会议讲台上，打开监听输出，找到导致麦克风啸叫的频段，并调整均衡器设置以它。麦克风应指向，避免对着发言者，必要时可适当调整会议讲台的位置。操作范围必须小，这样啸叫才能保持在一个稳定的水平，然后再调整到更准确。
The multimedia conference audio manufacturer suggests pushing the mixer channel pusher to 0dB, placing the microphone on the conference platform, turning on the monitoring output, finding the frequency band that causes the microphone to howl, and adjusting the equalizer settings to eliminate it. The microphone should point to avoid facing the speaker. If necessary, the position of the conference platform can be adjusted appropriately. The operating range must be small, so that the howling can be kept at a stable level, and then adjusted to be more accurate.
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