An audio processing device includes an audio input selecting unit configured to select a predetermined audio input from among a plurality of audio inputs; a signal processing unit configured to give a predetermined sound field characteristic to audio signals of the audio input selected by the audio input selecting unit; a signal output unit configured to output the audio signals obtained in the signal processing unit; a genre information receiving unit configured to receive genre information transmitted from any of audio signal output devices; and a sound field control unit configured to control the signal processing unit to give a sound field characteristic corresponding to the genre information if the genre information received by the genre information receiving unit is determined to be the genre information corresponding to the audio input selected by the audio input selecting unit.