Digital multi-channel active noise control system

The invention discloses a digital multi-channel active noise control system. The system comprises multiple-input/multiple-output channels, a bypass-settable analog low-pass filter module, an analog-to-digital conversion module, a digital-to-analog conversion module, a digital signal processing module, a general processor module, a touchable display screen, a USB adapter and interface, a network adapter and interface and a wireless transmission module. The system has rich operation resources, and can realize a plurality of active noise control algorithms, which are high in complexity. The system adopts an effective time delay control method, thereby facilitating control of broadband active noise. A user can operate the system through the touch screen; a friendly operation interface is provided; and the system is concise in configured devices, is flexible in configuration, is simple to operate, improves working efficiency and provides a necessary condition for popularization of application of active noise contr