音響工程是一個品目眾多的復雜性工程，調音臺又是音響工程中的核心設備，關系到整工程的質量及穩定性，那么在音響工程中調音臺應該怎么選?
Sound engineering is a complex project with many items. The mixer is the core equipment of sound engineering, which is related to the quality and stability of the whole project. So how should we choose the mixer in sound engineering?
調音臺的主要作用是將多路輸入信號進行信號放大、路由分配、音效修飾后進行編組輸出，是音響工程中的核心設備。調音臺按信號輸出方式可分為數字調音臺及模擬調音臺，輸入通道數量的多少又可以分成6、8、12、16、24······等多種，每個輸入通道性能、結構可以各不相同，每個輸入通道可接受一路電平信號輸入，如果是立體聲信號則需要兩個通道。
The main function of the mixer is to amplify the multi-channel input signal, distribute the route, modify the sound effect, and then output it. It is the core equipment in the sound engineering. According to the signal output mode, the mixer can be divided into digital mixer and analog mixer. The number of input channels can be divided into 6, 8, 12, 16, 24, etc. each input channel has different performance and structure. Each input channel can accept one level signal input. If it is a stereo signal, it needs two channels.
數字調音臺內的音頻信號是數字信號，是全自動化處理，總諧波失真和等效輸入噪聲都很低。常被用于要求高的音響系統。模擬調音臺都是采用傳統的模擬方式進行信號處理，技術成熟，成本低，但是模擬調音臺性能穩定，不易受外界因素影響。
The audio signal in the digital mixer is digital signal, which is fully automatic processing. The total harmonic distortion and equivalent input noise are very low. It is often used in demanding sound system. Analog mixer adopts the traditional analog way for signal processing with mature technology and low cost, but the performance of analog mixer is stable and not easy to be affected by external factors.
數字調音臺跟模擬調音臺都有各自的特點，如果是大型綜合性的擴聲場所，使用數字調音臺，因為數字調音臺有豐富的接口及音頻處理功能，可以滿足不同場景及特定功能需求。如果是小型固定會議場所，建議使用模擬調音臺，成本低，系統穩定，操作簡單，適用于非操作人士的操作。
Digital mixer and analog mixer have their own characteristics. If it is a large comprehensive sound reinforcement place, it is recommended to use digital mixer, because digital mixer has rich interface and audio processing functions, which can meet the needs of different scenes and specific functions. If it is a small fixed meeting place, it is recommended to use analog mixer, which has low cost, stable system, simple operation and is suitable for non operators.
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