Abstract: A digital mixer has a panel and a mixing processor configurable in matching with a scene to mix audio signals fed from input channels and to feed the mixed audio signals to output channels. The panel has an operator manipulable to operate the mixing processor, and a display provided for displaying a state of the mixing processor. Further, a storage is provided for storing configuration patterns of the mixing processor in correspondence to various scenes. A retriever is provided for calling one of the various scenes and for retrieving the configuration pattern corresponding to the called scene from the storage; a selector provided for selecting one of a preview mode and a non-preview mode.

Abstract: A signal processing method is provided, which makes it possible to quickly find the cause of clipping or the like. A sound signal that is input is subjected to processing of adjusting at least one of sound volume and sound quality. It is determined whether the input sound signal satisfies a condition that the level of the sound signal exceeds a predetermined value at a plurality of metering points on a signal path along which the input sound signal is transmitted. An alarm is displayed on a screen when it is determined that the input sound signal satisfies the condition at at least one of the plurality of metering points.