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舞台音响包含一整套设备选型
更新时间:2022-05-14
文章来源:https://www.wenguangzhineng.com/
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目前市场上的舞台音响设备种类繁多,功能各异,给音响设备的选择带来了一定难度。那么舞台音响包含一整套设备选型是怎样的?
At present, there are many kinds of stage audio equipment on the market with different functions, which brings some difficulties to the selection of audio equipment. So what is the selection of stage audio including a complete set of equipment?
麦克风的选择
Microphone selection
麦克风是扩声系统的第一级“入口”。自然声源信号经过麦克风声电转换后的输出电压,经混频器和功放处理放大后馈入扬声器系统,进行放大。倍数可以达到数万。
The microphone is the first "entrance" of the sound reinforcement system. The output voltage of the natural sound source signal after acoustic electric conversion by the microphone is processed and amplified by the mixer and power amplifier, and then fed into the speaker system for amplification. Multiples can reach tens of thousands.
麦克风的性能直接影响系统的质量;麦克风本身的特性直接影响系统的拾音和放音效果;麦克风的放置直接影响系统的传输增益;麦克风的信号馈送直接影响系统的信噪比。麦克风的正确使用是整个音响系统良好工作状态的关键之一。
The performance of microphone directly affects the quality of the system; The characteristics of the microphone directly affect the pickup and playback effect of the system; The placement of microphone directly affects the transmission gain of the system; The signal feed of microphone directly affects the signal-to-noise ratio of the system. The correct use of microphone is one of the keys to the good working condition of the whole sound system.
麦克风的选择必须适应其所在的声学环境和拾音对象。需要根据扩声系统的整体要求、应用场合、拾音声源、麦克风本身的技术特点和大厅的特点来权衡。
The selection of microphone must adapt to its acoustic environment and pickup object. It needs to be weighed according to the overall requirements of the sound reinforcement system, application occasions, pickup sources, the technical characteristics of the microphone itself and the characteristics of the hall.
扬声器
speaker
扬声器是整个音响系统的喉舌,所以它应该被视为首要因素。扬声器的选择应从扬声器的灵敏度和额定功率开始,以确定每个声源的功率。扬声器的指向性用于分析和控制大厅的声场,确定每个扬声器的位置、输入阻抗和输入功率,计算扬声器与功放之间的匹配功率。
Loudspeaker is the mouthpiece of the whole sound system, so it should be regarded as the primary factor. The selection of loudspeakers shall start from the sensitivity and rated power of loudspeakers to determine the power of each sound source. The directivity of the loudspeaker is used to analyze and control the sound field in the hall, determine the position, input impedance and input power of each loudspeaker, and calculate the matching power between the loudspeaker and the power amplifier.
功率放大器
power amplifier
为了保证扩声系统的整体音质,功放必须有足够的功率余量,才能长时间稳定工作。同时,选用的放大器应有完善的技术措施,提高效率,减少失真,短路和空载保护,降低温升。
In order to ensure the overall sound quality of the sound reinforcement system, the power amplifier must have sufficient power margin to work stably for a long time. At the same time, the selected amplifier should have perfect technical measures to improve efficiency, reduce distortion, short circuit and no-load protection, and reduce temperature rise.
舞台音响
其他设备
Mixer and other equipment
调音台是整个音响系统的核心。它应具有良好的电气性能、稳定的工作状态、平坦的频率响应和小的谐波失真。混频器的功能千差万别,需要根据整个系统的功能需求选择不同的数量。输入通道和输出组的混音器。
The mixer is the core of the whole sound system. It should have good electrical performance, stable working state, flat frequency response and small harmonic distortion. The functions of mixers vary greatly, and different quantities need to be selected according to the functional requirements of the whole system. Mixer for input channels and output groups.
另外,您可以根据不同厅堂的声学要求选择合适的均衡器。延时、混响、压缩限幅器、移频器等设备组成正常、稳定、可靠的扩声系统。
In addition, you can choose the appropriate equalizer according to the acoustic requirements of different halls. Delay, reverberation, compression limiter, frequency shifter and other equipment form a normal, stable and reliable sound reinforcement system.
节目源设备
Program source equipment
节目源部分包括FM和AM广播的接收和转播,唱片(包括CD唱片)和磁带等设备和设备的播放。由于节目源部分的输入电平较低,所有元器件和设备必须保证高灵敏度、高信噪比、低失真和良好的可靠性。
The program source part includes the reception and retransmission of FM and am broadcasts, and the playback of devices and devices such as records (including CD records) and tapes. Due to the low input level of the program source, all components and equipment must ensure high sensitivity, high signal-to-noise ratio, low distortion and good reliability.
其实,一般情况下专业舞台音响设备是由话筒+调音台+功放+音箱即可。如果是要专业的舞台音响效果,除了需要专业的舞台搭建工作人员之外,还要加效果器、时序器、均衡器、限压器等音响设备。更多内容了解就来网站资讯www.wenguangzhineng.com看看吧。
In fact, in general, professional stage audio equipment consists of microphone + Mixer + power amplifier + speaker. If you want professional stage sound effect, in addition to professional stage construction staff, you also need to add sound equipment such as effector, sequencer, equalizer and voltage limiter. For more information, please visit www.wenguangzhining.com Check it out. Www. 68mn.

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