Display device and audio signal processing method thereof
AssigneeLG Electronics Inc.
InventorsJong Ha PARK, Sang Keun LEE, Gen Moo SONG, Jin Young KIM
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Abstract
The present disclosure relates to a display device capable of producing stereophonic sound in conjunction with an audio device, and an audio signal processing method thereof, which may: control, upon input of original audio signals to be played, the original audio signals to be output from an external audio device; input audio signals of a specific frequency band, from among the original audio signals, to a pre-trained neural network model and up-mix same into virtual multi-channel audio signals; and control the up-mixed virtual multi-channel audio signals to be output from an audio output unit.
Claims15
A display device comprising:
- a communication part communicating with at least one external audio device;
- an audio output part outputting an audio signal;
- and,
- a processor controlling the communication part and the audio output part,
- wherein the processor controls,
- when an original audio signal to be played is input, to output the original audio signal from the external audio device, to check a currently set sound mode, to obtain a specific frequency band information corresponding to the currently set sound mode from the specific frequency band information for each sound mode pre-stored, to select a filter passing only specific frequency band corresponding to the currently set sound mode, to filter only audio signal of the specific frequency band among the original audio signal, input an audio signal of the filtered specific frequency band to a pre-learned neural network model to upmix into a virtual multi-channel audio signal, and to output the upmixed virtual multi-channel audio signal from the audio output part.
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A method for processing an audio signal of a display device linked to an audio device, comprising:
- checking input of an original audio signal to be played;
- controlling to output the original audio signal from the external audio device when the original audio signal is input;
- checking a currently set sound mode;
- obtaining a specific frequency band information corresponding to the currently set sound mode from the specific frequency band information for each sound mode pre-stored;
- selecting a filter passing only specific frequency band corresponding to the currently set sound mode;
- filtering only audio signal of the specific frequency band among the original audio signal:
- inputting an audio signal of the filtered specific frequency band into a pre-learned neural network model and upmixing the audio signal into a virtual multi-channel audio signal;
- and
- controlling the upmixed virtual multi-channel audio signal to be output from an audio output part of the display device.
Dependencies are inferred from the claim text.