Apparatus and method for outputting audio signal, and display apparatus using the same

A display apparatus comprising:

• an external housing comprising a front side on which a display panel is provided;
• an audio signal processing device accommodated in the external housing and configured to process and render, for output, two or more channel signals generated from audio data;
• and
• directional speakers of two or more channels, provided on at least one of a back side opposite to the front side of the external housing, a top side of the external housing, or a lateral side of the external housing, and configured to convert the rendered two or more channel signals into audible sound and to output the audible sound in a predetermined directions,
• wherein the audio signal processing device comprises:
• a frequency converter configured to generate channel signals of a frequency domain by converting the generated two or more channel signals through frequency conversion;
• and
• a re-panner configured to change, by as much as an adjustment value for a channel gain, the channel gain of at least one channel signal of the generated channel signals of the frequency domain, and
• wherein the adjustment value is at least partially varied based on a frequency of the at least one channel signal of the generated channel signals of the frequency domain.

A method of outputting an audio signal, which is performed by at least one processor to reproduce and output an audible sound from audio data, the method comprising:

• generating two or more channel signals from the audio data;
• generating channel signals of a frequency domain by converting the generated two or more channel signals through frequency conversion;
• changing, by as much as an adjustment value for a channel gain, the channel gain of at least one channel signal of the generated channel signals of the frequency domain;
• and
• reproducing, as audible sound, the at least one channel signal having the changed channel gain,
• wherein the adjustment value monotonically varies as a frequency of the at least one channel signal of the generated channel signals of the frequency domain increases.