更新時(shí)間：2022-05-14
文章來(lái)源：http://m.74seba.com/
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目前市場(chǎng)上的
舞臺(tái)音響設(shè)備種類繁多，功能各異，給音響設(shè)備的選擇帶來(lái)了一定難度。那么舞臺(tái)音響包含一整套設(shè)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(fēng)的選擇
Microphone selection
麥克風(fēng)是擴(kuò)聲系統(tǒng)的級(jí)“入口”。自然聲源信號(hào)經(jīng)過(guò)麥克風(fēng)聲電轉(zhuǎn)換后的輸出電壓，經(jīng)混頻器和功放處理放大后饋入揚(yáng)聲器系統(tǒng)，進(jìn)行放大。倍數(shù)可以達(dá)到數(shù)萬(wàn)。
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(fēng)的性能直接影響系統(tǒng)的質(zhì)量；麥克風(fēng)本身的特性直接影響系統(tǒng)的拾音和放音效果；麥克風(fēng)的放置直接影響系統(tǒng)的傳輸增益；麥克風(fēng)的信號(hào)饋送直接影響系統(tǒng)的信噪比。麥克風(fēng)的正確使用是整個(gè)音響系統(tǒng)良好工作狀態(tài)的關(guān)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(fēng)的選擇必須適應(yīng)其所在的聲學(xué)環(huán)境和拾音對(duì)象。需要根據(jù)擴(kuò)聲系統(tǒng)的整體要求、應(yīng)用場(chǎng)合、拾音聲源、麥克風(fēng)本身的技術(shù)特點(diǎn)和大廳的特點(diǎn)來(lái)權(quán)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(yáng)聲器
speaker
揚(yáng)聲器是整個(gè)音響系統(tǒng)的喉舌，所以它應(yīng)該被視為首要因素。揚(yáng)聲器的選擇應(yīng)從揚(yáng)聲器的靈敏度和額定功率開(kāi)始，以確定每個(gè)聲源的功率。揚(yáng)聲器的指向性用于分析和控制大廳的聲場(chǎng)，確定每個(gè)揚(yáng)聲器的位置、輸入阻抗和輸入功率，計(jì)算揚(yáng)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(kuò)聲系統(tǒng)的整體音質(zhì)，功放必須有足夠的功率余量，才能長(zhǎng)時(shí)間穩(wěn)定工作。同時(shí)，選用的放大器應(yīng)有完善的技術(shù)措施，提率，減少失真，短路和空載保護(hù)，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.
其他設(shè)備
Mixer and other equipment
調(diào)音臺(tái)是整個(gè)音響系統(tǒng)的核心。它應(yīng)具有良好的電氣性能、穩(wěn)定的工作狀態(tài)、平坦的頻率響應(yīng)和小的諧波失真。混頻器的功能千差萬(wàn)別，需要根據(jù)整個(gè)系統(tǒng)的功能需求選擇不同的數(shù)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(jù)不同廳堂的聲學(xué)要求選擇合適的均衡器。延時(shí)、混響、壓縮限幅器、移頻器等設(shè)備組成正常、穩(wěn)定、可靠的擴(kuò)聲系統(tǒng)。
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(jié)目源設(shè)備
Program source equipment
節(jié)目源部分包括FM和AM廣播的接收和轉(zhuǎn)播，唱片（包括CD唱片）和磁帶等設(shè)備和設(shè)備的播放。由于節(jié)目源部分的輸入電平較低，所有元器件和設(shè)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(shí)，一般情況下舞臺(tái)音響設(shè)備是由話筒+調(diào)音臺(tái)+功放+音箱即可。如果是要的舞臺(tái)音響效果，除了需要的舞臺(tái)搭建工作人員之外，還要加效果器、時(shí)序器、均衡器、限壓器等音響設(shè)備。更多內(nèi)容了解就來(lái)網(wǎng)站資訊
m.74seba.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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