An audio device comprising: a speaker array aligning a plurality of speaker units; an audio signal processing section comprising: a sound volume control for controlling input audio signals in volume; a main processing section for controlling timings of supplying first audio signals to the speaker units of the speaker array, so that the speaker array outputs at least one sound beam emitted in a prescribed direction; a high-pass filter for producing second audio signals by extracting high-frequency components from the volume-controlled input audio signals; a high-band control (26, 27) for controlling the second audio signals to be emitted with directivity characteristics distributed in an area; and an adder for adding the first and second audio signals and for supplying the resulting audio signals to the speaker array; and a control section for controlling an output level of the high-band control (26, 27), wherein the volume-controlled input audio signals are branched into the main processing section and a sub-processing section, the sub-processing section comprising the high-pass filter and the high-band control (26, 27), wherein the first audio signals are the volume-controlled input audio signals branched into the main processing section and the sub-processing section; wherein the control section is configured for controlling the output level of the high-band control (26, 27) in response to the volume of the first audio signals and/or an emission direction of the at least one sound beam. a speaker array aligning a plurality of speaker units; an audio signal processing section comprising: a sound volume control for controlling input audio signals in volume; a main processing section for controlling timings of supplying first audio signals to the speaker units of the speaker array, so that the speaker array outputs at least one sound beam emitted in a prescribed direction; a high-pass filter for producing second audio signals by extracting high-frequency components from the volume-controlled input audio signals; a high-band control (26, 27) for controlling the second audio signals to be emitted with directivity characteristics distributed in an area; and an adder for adding the first and second audio signals and for supplying the resulting audio signals to the speaker array; and a sound volume control for controlling input audio signals in volume; a main processing section for controlling timings of supplying first audio signals to the speaker units of the speaker array, so that the speaker array outputs at least one sound beam emitted in a prescribed direction; a high-pass filter for producing second audio signals by extracting high-frequency components from the volume-controlled input audio signals; a high-band control (26, 27) for controlling the second audio signals to be emitted with directivity characteristics distributed in an area; and an adder for adding the first and second audio signals and for supplying the resulting audio signals to the speaker array; and a control section for controlling an output level of the high-band control (26, 27), wherein the volume-controlled input audio signals are branched into the main processing section and a sub-processing section, the sub-processing section comprising the high-pass filter and the high-band control (26, 27), wherein the first audio signals are the volume-controlled input audio signals branched into the main processing section and the sub-processing section; wherein the control section is configured for controlling the output level of the high-band control (26, 27) in response to the volume of the first audio signals and/or an emission direction of the at least one sound beam.