更新時間：2022-08-31
文章來源：http://m.74seba.com/
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現(xiàn)在大部的會議室和劇場等都有個標準配置，那就是音響，
山東會議室音響的用途有很多，這一點就不用多說了。但是除了這些用途之外，音響在遇到干擾的時候怎么辦呢？
At present, most conference rooms and theatres have a standard configuration, that is, audio. There are many uses of audio in Shandong conference rooms, which is needless to say. But apart from these uses, what should the stereo do when it encounters interference?
部分：本端的聲音通過麥克風拾音，將人聲轉化為電信號送往調(diào)音臺進行放大、混合、分配、音質(zhì)修飾和效果加工處理后，再分為二路：
Part I: the sound of the local end is picked up by the microphone, and the human voice is converted into an electrical signal and sent to the mixing console for amplification, mixing, distribution, sound quality modification and effect processing, and then divided into two channels:
一路信號送往本端的功率放大器進行放大后經(jīng)揚聲器還原為聲音;另一路信號由調(diào)音臺的輔助輸出(AUX OUT)送往會議終端處理后傳輸給遠端。
One channel of signal is sent to the power amplifier at the local end for amplification and then restored to sound through the speaker; The other channel of signal is sent to the conference terminal for processing by the auxiliary output (aux out) of the mixer and then transmitted to the remote end.
第二部分：遠端送來的信號通過會議終端處理后，音頻信號進入調(diào)音臺進行加工處理，再送往本端的功率放大器進行放大，經(jīng)揚聲器還原為聲音。以上分析可知，調(diào)音臺是各路信號加工處理的匯聚點，如何調(diào)整好調(diào)音臺的各個旋鈕及功能鍵，是調(diào)試中的關鍵所在。
Part II: after the signal sent from the far end is processed by the conference terminal, the audio signal enters the mixer for processing, and then is sent to the power amplifier at the local end for amplification, and is restored to sound through the speaker. From the above analysis, it can be seen that the mixer is the convergence point of signal processing. How to adjust the knobs and function keys of the mixer is the key in debugging.
聲音還原的質(zhì)量有了明顯的提高，但個別省市還存在問題，主要表現(xiàn)為噪聲大、失真大、電平不規(guī)范、頻響不均勻、聲音比例失調(diào)、混響延時不當?shù)葐栴}。比如：噪聲大。
The quality of sound reproduction has been significantly improved, but there are still problems in some provinces and cities, mainly including large noise, large distortion, nonstandard level, uneven frequency response, unbalanced sound proportion, improper reverberation delay, etc. For example, the noise is large.
它影響聲音的清晰度、柔和度和明亮度，嚴重時會掩蓋了會場的聲音。
It affects the clarity, softness and brightness of the sound, and in serious cases, it will cover up the sound of the meeting place.
① 本底噪聲。由于增益過大、采用自動增益控制方式、阻抗不匹配等，都會出現(xiàn)本底噪聲。
① Background noise. Background noise will occur due to excessive gain, automatic gain control, impedance mismatch, etc.
② 麥克風“撲”聲。麥克風是擴音系統(tǒng)的個環(huán)節(jié)，其信號質(zhì)量的好壞直接影響到整個會議效果，因此要根據(jù)其特點和性能、聲源重現(xiàn)的特征以及各聲源之間的相對關系合理選擇和設置。對于破音較強的發(fā)言者，應選用防“撲”聲的麥克風。
② The microphone "pours". The microphone is the first link of the public address system. Its signal quality directly affects the whole conference effect. Therefore, it should be reasonably selected and set according to its characteristics and performance, the characteristics of sound source reproduction and the relative relationship between various sound sources. For speakers with strong breaking sound, microphones with anti "flapping" sound shall be selected.
會議音響系統(tǒng)出現(xiàn)干擾問題及解決方法就講解到這里，分會場的設備包括會議終端及相關外部設備，設備種類及功能大同小異。所以，音頻信號的傳輸處理過程分為兩部分，您可以來我們網(wǎng)站
http://m.74seba.com詳細咨詢細節(jié)。
The interference problems of the conference audio system and the solutions will be explained here. The equipment of the branch venue includes the conference terminal and related external equipment. The equipment types and functions are similar. Therefore, the audio signal transmission process is divided into two parts. You can visit our website http://m.74seba.com Detailed consultation details.
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