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        舞臺音響包含一整套設備選型
        更新時間:2022-05-14
        文章來源:http://www.jmsslc.com/
        閱讀量:22
        目前市場上的舞臺音響設備種類繁多,功能各異,給音響設備的選擇帶來了一定難度。那么舞臺音響包含一整套設備選型是怎樣的?
        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?
        麥克風的選擇
        Microphone selection
        麥克風是擴聲系統的第一級“入口”。自然聲源信號經過麥克風聲電轉換后的輸出電壓,經混頻器和功放處理放大后饋入揚聲器系統,進行放大。倍數可以達到數萬。
        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.
        麥克風的性能直接影響系統的質量;麥克風本身的特性直接影響系統的拾音和放音效果;麥克風的放置直接影響系統的傳輸增益;麥克風的信號饋送直接影響系統的信噪比。麥克風的正確使用是整個音響系統良好工作狀態的關鍵之一。
        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.
        麥克風的選擇必須適應其所在的聲學環境和拾音對象。需要根據擴聲系統的整體要求、應用場合、拾音聲源、麥克風本身的技術特點和大廳的特點來權衡。
        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.
        揚聲器
        speaker
        揚聲器是整個音響系統的喉舌,所以它應該被視為首要因素。揚聲器的選擇應從揚聲器的靈敏度和額定功率開始,以確定每個聲源的功率。揚聲器的指向性用于分析和控制大廳的聲場,確定每個揚聲器的位置、輸入阻抗和輸入功率,計算揚聲器與功放之間的匹配功率。
        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
        為了保證擴聲系統的整體音質,功放必須有足夠的功率余量,才能長時間穩定工作。同時,選用的放大器應有完善的技術措施,提高效率,減少失真,短路和空載保護,降低溫升。
        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.
        舞臺音響
        其他設備
        Mixer and other equipment
        調音臺是整個音響系統的核心。它應具有良好的電氣性能、穩定的工作狀態、平坦的頻率響應和小的諧波失真?;祛l器的功能千差萬別,需要根據整個系統的功能需求選擇不同的數量。輸入通道和輸出組的混音器。
        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,您可以根據不同廳堂的聲學要求選擇合適的均衡器。延時、混響、壓縮限幅器、移頻器等設備組成正常、穩定、可靠的擴聲系統。
        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.
        節目源設備
        Program source equipment
        節目源部分包括FM和AM廣播的接收和轉播,唱片(包括CD唱片)和磁帶等設備和設備的播放。由于節目源部分的輸入電平較低,所有元器件和設備必須保證高靈敏度、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.
        其實,一般情況下專業舞臺音響設備是由話筒+調音臺+功放+音箱即可。如果是要專業的舞臺音響效果,除了需要專業的舞臺搭建工作人員之外,還要加效果器、時序器、均衡器、限壓器等音響設備。更多內容了解就來網站資訊www.jmsslc.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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