1、多功能厅一般属于主席台会议，非圆桌会议，与报告厅一样；
1. The multi-function hall generally belongs to the podium meeting, not a round table meeting, just like the lecture hall;
观众席的清晰度和传声增益是两个重要指标。传声增益较高，则系统可获得的增益较高，否则清晰度不高。
Audience clarity and sound transmission gain are two important indicators. If the sound transmission gain is high, the gain available to the system is high, otherwise the definition is not high.
3、客观地向甲方或使用者解释啸叫问题；
3. Objectively explain the howling problem to Party A or the user;
4、辅助音箱的作用不可缺少；
4. The role of auxiliary speakers is indispensable;
5、主扩声和辅助音箱需要单独调试；
5. The main sound reinforcement and auxiliary speakers need to be separately debugged;
6、主席台前部必须有扩声音箱，主音箱禁止辐射到主席台区域；
6. The front of the rostrum must have a sound reinforcement speaker, and the main speaker is prohibited from radiating into the rostrum area;
7、尽可能控制话筒同时打开的数量对抑制啸叫有决定作用；
7. Controlling the number of microphones simultaneously turned on as much as possible has a decisive effect on suppressing whistling;
会议系统的压限值要比其它任何值都要保守，通常功放功率配置时，处理器压限启动阈值较低，一般在-10到-20 dB之间，速度一般为1---5 ms，建议压缩比取：10:1无穷大；
The voltage limit of a conference system is more conservative than any other value. Generally, when configuring the power amplifier, the processor voltage limit startup threshold is low, typically between - 10 and - 20 dB, and the speed is typically 1 to 5 ms. The recommended compression ratio is 10:1 to infinity;
9、报告厅一般有多媒体播放功能，所以各主扩频的频段不可设置过窄，建议在40Hz-----18KHz之间。若不重放而只是单纯的语言扩声，则频响范围可大大减小，可设在100—12 K之间认为完全可以；
9. The lecture hall generally has a multimedia playback function, so the frequency band of each main spread spectrum cannot be set too narrow. It is recommended to be between 40Hz and 18KHz. "If you do not reproduce but simply amplify language, the frequency response range can be greatly reduced, and it can be set between 100 and 12 K, which is considered completely acceptable;";
10、会议话筒的低切功能建议在调音台打开，这样低频基本不会进入超低音系统，不会造成低频反馈；
10. The low cut function of conference microphones is recommended to be turned on at the mixer, so that low frequencies will not enter the subwoofer system and will not cause low frequency feedback;
所有参数均衡或图示均衡都被用作反馈抑制。若矩阵处理器具有反馈抑制功能，使用。另外，可以让它的旁路失效；
All parameter equalization or graphical equalization is used as feedback suppression. If advanced matrix processors have feedback suppression capabilities, they are recommended. In addition, it can disable its bypass;
12、噪音门使用注意事项；
12. Precautions for use of noise doors;
13、调音台的话筒平衡调节问题；
13. The microphone balance adjustment problem of the mixing station;
14、是返程系统。
14. Preferably, a backhaul system.
传声增益与声场布局、话筒指向性、环境结构与吸声(声场的频率特性)、音箱与话筒的频率特性直接相关。
Sound transmission gain is directly related to sound field layout, microphone directivity, environmental structure and sound absorption (frequency characteristics of the sound field), and frequency characteristics of speakers and microphones.
表演模式调试关键点
Key points for performance mode debugging
1、详细查看演艺系统调试关键点(后续上传，请关注 XYCAD微信)；
1. View the key points of performance system debugging in detail (for subsequent uploads, please follow the official WeChat account of XYCAD);
2、多功能厅中除音箱布置不可移动外，会议与表演几乎是对立性强的两种模式：动力、声压级、频率特性、话筒、音色、各级增益、压限的各种参数、立体声、效果等几乎完全不同；
2. In a multi-function hall, except for the immovable speaker arrangement, conference and performance are almost the two most antagonistic modes: power, sound pressure level, frequency characteristics, microphone, timbre, various parameters of various levels of gain, pressure limit, stereo sound, and effects, which are almost completely different;
3、反馈抑制无效；
3. Invalid feedback suppression;
4.必须进行回送。
4. Must be sent back.
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