Audio device

Abstract

An audio device is composed of a digital processor and a communication interface. The digital signal processor performs a mixer process on a plurality of mix buses for mixing audio signals from a plurality of input channels and outputting the mixed signals to output channels and performs a signal process for controlling characteristics of audio signals. The digital signal processor performs the mixer process by means of a cross point process for controlling a level of an audio signal and adding the audio signal having the controlled level to a corresponding mix bus. The digital signal processor is provided with resources for enabling a plurality of cross point processes when an external audio device is connected to the audio device through the communication interface, the digital signal processor exchanges outputs of a plurality of mix buses with the external audio device and performs the mixer process on outputs of the plurality of mix buses received from the external audio device, as new mix buses, by means of cross point processes available among the plurality of cross point processes provided for the digital signal processor, thereby extending a number of mix buses.

Dependencies are inferred from the claim text.