Knowledge of Light-Acoustics Structure

- Jul 18, 2018-

The signal flow of the Light-Acoustics is divided into three parts: the signal input part, the bus part, and the signal output part. The sound source signal is input from the microphone or input from the line, and the gain is adjusted to enter the equalization process for sound quality compensation, and the attenuator is used for the mixing ratio adjustment; and then the sound image is adjusted to enter the left and right channel bus bars and the group bus. The sound signal is extracted before and after the fader, and enters the auxiliary busbar respectively; the mixed acoustic signal coming out from the busbar is mixed and amplified, adjusted in size and amplitude, and isolated and amplified; and the corresponding various outputs are sent out. The sound signal sent from the auxiliary or the signal of the external device passes through the effector or other processing, and enters the mixer from the auxiliary return end for size adjustment and sound image adjustment, superimposes with the signals on the left and right channels, and then sends out together.

Knowledge of Light-Acoustics structure, the audio system is usually configured with the mixer as the center. All the audio signals are sent to the mixer for mixing, and then the required signals are extracted from the bus system. The sound source signal of the sound station generally has two situations: one is a high level signal sent by an electro-acoustic instrument, an effect processor, a sound recorder or other line output interface, which is generally sent through the LINE IN input interface of the mixer. The mixer, the other is a low-level signal from a moving coil microphone and a capacitor or electret microphone that can be fed into the mixer from the MIC IN input on the mixer.



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