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调音台的立体声输入要注意些什么?
更新时间:2021-12-10
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1)立体声线路输入插口(STEREO INPUT,LR)是两个6.25mm TRS插口,用以接受平衡和非平衡的立体声声源,如合成器,cd机,立体声话筒等,采用平衡输入可以减少噪声和干扰,若采用非平衡输入,要使连接线,尽可能短,将连接线引入的干扰减到小,若是单声道声源,则插入左声道,信号自动分配给立体声左右声道。
1) Stereo input (LR) is two 6.25mm TRS sockets to receive balanced and unbalanced stereo sound sources, such as synthesizer, CD player, stereo microphone, etc. balanced input can reduce noise and interference. If unbalanced input is adopted, the connecting line should be as short as possible to minimize the interference introduced by the connecting line. If it is a mono sound source, The left channel is inserted and the signal is automatically allocated to the left and right stereo channels.
2)输入灵敏度,输入电平选择开关,大多数设备均采用+4诲产痴的输入和输出电平,但准的卡座等设备采用的是-10诲产痴(贬颈贵颈系统中的100尘痴)的低电平,该开关允许将立体声输入与标准值相匹配,以保证的信号质量,抬起输入电平选择开关时为+4诲产,按下为-10诲产。
2) Input sensitivity and input level selection switch. Most professional equipment adopt the input and output levels of + 4dbv, but quasi professional card holder and other equipment adopt the low level of - 10dbv (100mV in hifi system). This switch allows stereo input to match the standard value to ensure the best signal quality. When lifting the input level selection switch, it is + 4dB and pressing it is - 10dB.
3)平衡(叠础尝础狈颁贰),该旋钮为双联电位器,用来设定送入的左右声道的相对电平,以确定该信号源在立体声声场的声像表现,当旋钮设定到全左或全右时,音源的信号只有左声道或右声道的信号送进母线。
3) Balance: the knob is a dual potentiometer, which is used to set the relative level of the input left and right channels to determine the sound and image performance of the signal source in the stereo sound field. When the knob is set to all left or all right, only the signals of the left channel or right channel are sent to the bus.
4)推拉衰减器,该推子可以同时对立体声通道上的两路信号的电平进行平滑的控制。
4) The push-pull attenuator can smoothly control the levels of two signals on the stereo channel at the same time.
编组、辅助部分
Marshalling and auxiliary parts
1)编组输出插口,满足实况演出的乐器分组或驱动,多组扬声器在录音时,编组输出插口,可接多轨录音机,为交流声而进行了基地补偿和阻抗平衡,进行立体声编组时,奇数编组被分配到左声道,偶数编组被分配到右声道。
山东音响
1) The marshalling output socket can meet the grouping or driving of musical instruments for live performance. When multiple groups of speakers are recording, the marshalling output socket can be connected to multi track recorder to carry out base compensation and impedance balance in order to eliminate AC sound. When stereo marshalling is carried out, odd marshalling is allocated to the left channel and even marshalling is allocated to the right channel.
2)辅助输出插口,将辅助母线上的信号送出调音台,连接下一级信号处理设备,辅助输出信号,一般有两种用途,一种是将信号送到扩声系统的舞台返送监听,此信号在演出中通常不作过多的调整,因此多取自推子前输出,另一种是用于连接其他信号处理设备,将信号进行适当的处理后,再从主控部分的返回窗口,或利用一个输入通道接入调音台。
2) The auxiliary output socket sends the signal on the auxiliary bus to the mixer and connects the next level signal processing equipment. The auxiliary output signal generally has two purposes: one is to send the signal to the stage of the sound reinforcement system for back monitoring. This signal is usually not adjusted too much in the performance, so it is mostly taken from the output before the pusher, and the other is used to connect other signal processing equipment, After the signal is properly processed, it can be accessed from the return window of the main control part or an input channel to the mixer.
3)编组插入插口,用于在编组推子前插入压限器,图示均衡器等设备的处理效果。
3) The marshalling insertion socket is used to insert the pressure limiter in front of the marshalling pusher to illustrate the processing effect of equalizer and other equipment.
4)效果返回输入插口,外部信号处理设备的返回信号输入端口,经必要的电平调整后,信号直接送入母线。
4) The effect returns to the input socket and the return signal input port of the external signal processing equipment. After necessary level adjustment, the signal is directly sent to the bus.
5)辅助主控,将从辅助输出母线提取的信号进行电平补偿,得到所需的辅助输出电平的大小。
5) The auxiliary master controller compensates the level of the signal extracted from the auxiliary output bus to obtain the required auxiliary output level.
6)混合(尝-搁)、中置(颁)把编组接入混合母线或中置单声道母线。
6) Hybrid (L-R) and central (c) connect the marshalling to hybrid bus or central mono bus.
7)编组衰减器,用于控制编组的输出电平,正常作业为0诲产。
7) Marshalling attenuator is used to control the output level of marshalling, and the normal operation is 0dB.

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