现在大部的会议室和剧场等都有个标准配置,那就是音响,
山东会议室音响的用途有很多,这一点就不用多说了。但是除了这些用途之外,音响在遇到干扰的时候怎么办呢?
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:本端的声音通过麦克风拾音,将人声转化为电信号送往调音台进行放大、混合、分配、音质修饰和效果加工处理后,再分为二路:
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:
一路信号送往本端的功率放大器进行放大后经扬声器还原为声音;另一路信号由调音台的辅助输出(AUX OUT)送往会议终端处理后传输给远端。
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:远端送来的信号通过会议终端处理后,音频信号进入调音台进行加工处理,再送往本端的功率放大器进行放大,经扬声器还原为声音。以上分析可知,调音台是各路信号加工处理的汇聚点,如何调整好调音台的各个旋钮及功能键,是调试中的关键所在。
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.
声音还原的质量有了明显的提高,但个别省市还存在问题,主要表现为噪声大、失真大、电平不规范、频响不均匀、声音比例失调、混响延时不当等问题。比如:噪声大。
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.
它影响声音的清晰度、柔和度和明亮度,严重时会掩盖了会场的声音。
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 本底噪声。由于增益过大、采用自动增益控制方式、阻抗不匹配等,都会出现本底噪声。
① Background noise. Background noise will occur due to excessive gain, automatic gain control, impedance mismatch, etc.
② 麦克风“扑”声。麦克风是扩音系统的个环节,其信号质量的好坏直接影响到整个会议效果,因此要根据其特点和性能、声源重现的特征以及各声源之间的相对关系合理选择和设置。对于破音较强的发言者,应选用防“扑”声的麦克风。
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.
会议音响系统出现干扰问题及解决方法就讲解到这里,分会场的设备包括会议终端及相关外部设备,设备种类及功能大同小异。所以,音频信号的传输处理过程分为两部分,您可以来我们网站
详细咨询细节。
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 Detailed consultation details.