US-12621605-B2 - Audio playback device, audio playback method thereof and storage medium

US12621605B2US 12621605 B2US12621605 B2US 12621605B2US-12621605-B2

Abstract

Provided are an audio playback device, an audio playback method thereof, and a storage medium. The audio playback method include: acquiring an audio resonance table of the audio playback device, the audio resonance table includes one or more first frequency points and a first audio gain corresponding to the first frequency points, when the audio playback device outputs audio using the first audio gain at the first frequency point, the signal gain of the generated harmonic band signal is less than or equal to a preset harmonic gain threshold; processing the audio to be output according to the first frequency point and the first audio gain in the audio resonance table; and outputting the processed audio.

Inventors

Biao TAO
Desheng Li
Zhongcai DONG

Assignees

K-TRONICS (SUZHOU) TECHNOLOGY CO., LTD.
BOE TECHNOLOGY GROUP CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20230810
Priority Date: 20220831

Claims (10)

1 . An audio playback method of an audio playback device, comprising: acquiring an audio resonance table of the audio playback device, wherein the audio resonance table comprises one or more first frequency points and a first audio gain corresponding to a first frequency point of the one or more first frequency points, wherein a signal gain of a harmonic band signal generated by the audio playback device in a process of outputting audio using the first audio gain at the first frequency point is less than or equal to a preset harmonic gain threshold; processing the audio to be outputted according to the first frequency point and the first audio gain in the audio resonance table; and outputting the processed audio, wherein before acquiring the audio resonance table of the audio playback device the method further comprises: determining a scan frequency point list; performing one or more single frequency point audio tests on each scan frequency point in the scan frequency point list to determine the first audio gain corresponding to each scan frequency point, wherein the single frequency point audio tests comprise: playing a single frequency point audio, wherein the single frequency point audio generates a baseband signal and the harmonic band signal, determining the signal gain of the harmonic band signal, and recording an audio gain corresponding to a current single frequency point audio as the first audio gain corresponding to the single frequency point based on a determination that the signal gain of the harmonic band signal is lower than a preset harmonic gain threshold; and generating the audio resonance table of the audio playback device.
2 . The audio playback method according to claim 1 , wherein performing one or more single frequency point audio tests on each scan frequency point in the scan frequency point list comprises: initializing the audio gain of a current scan frequency point; outputting the single frequency point audio of the current scan frequency point, wherein the single frequency point audio is propagated through vibration of air and a structural member of the audio playback device to generate the baseband signal and the harmonic band signal; determining the signal gain of the harmonic band signal and determining whether the signal gain of the harmonic band signal is less than or equal to the preset harmonic gain threshold; based on a determination that the signal gain of the harmonic band signal is less than or equal to the preset harmonic gain threshold, recording the audio gain of a current output single frequency point audio as the first audio gain corresponding to the current scan frequency point; and based on a determination that the signal gain of the harmonic band signal is greater than the preset harmonic gain threshold, reducing the audio gain of the current single frequency point audio, and returning to the step of outputting the single frequency point audio of the current scan frequency point and continuing to execute in a loop.
3 . The audio playback method according to claim 2 , wherein during reducing the audio gain of the current output single frequency point audio, the audio gain is varied by z dB each time, where z is between −1 and −3.
4 . The audio playback method according to claim 1 , wherein determining the scan frequency point list comprises: determining a lowest scan frequency point between 20 Hz and 30 Hz, a highest scan frequency point between 450 Hz and 650 Hz, and a frequency scan step size.
5 . The audio playback method according to claim 1 , wherein the preset harmonic gain threshold is less than −1 dB.
6 . An audio playback device, comprising a memory; and a processor coupled to the memory, the processor is configured to, based on instructions stored in the memory, perform the steps of the audio playback method according to claim 1 .
7 . A non-transitory computer readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the audio playback method according to claim 1 is implemented.
8 . An audio playback device, comprising an audio output unit and a process unit, wherein: the process unit is configured for acquiring an audio resonance table of the audio playback device, wherein the audio resonance table comprises one or more first frequency points and a first audio gain corresponding to a first frequency point of the one or more first frequency points, wherein a signal gain of a harmonic band signal generated by the audio playback device in a process of outputting audio using the first audio gain at the first frequency point is less than or equal to a preset harmonic gain threshold; processing an audio to be outputted according to the first frequency point and the first audio gain in the audio resonance table; and outputting the processed audio to the audio output unit; and the audio output unit is configured for playing the processed audio, wherein before acquiring the audio resonance table of the audio playback device, the process unit is further configured for: determining a scan frequency point list; performing one or more single frequency point audio tests on each scan frequency point in the scan frequency point list to determine the first audio gain corresponding to each scan frequency point, wherein the single frequency point audio tests comprise: playing a single frequency point audio, wherein the single frequency point audio generates a baseband signal and the harmonic band signal, determining the signal gain of the harmonic band signal, and recording an audio gain corresponding to a current single frequency point audio as the first audio gain corresponding to the single frequency point in based on a determination that the signal gain of the harmonic band signal is lower than a preset harmonic gain threshold; and generating the audio resonance table of the audio playback device.
9 . The audio playback device according to claim 8 , further comprising an audio recording unit, wherein: the audio recording unit comprises a microphone sensor and a recording process module connected with the microphone sensor, the recording process module is configured for converting an analog signal recorded by the microphone sensor into a digital signal; and the audio output unit comprises a speaker.
10 . The audio playback device according to claim 9 , further comprising a keyboard, the keyboard comprises a plurality of keys, the plurality of keys comprise at least one first key having an area greater than or equal to a preset area threshold, wherein: there is one of the microphone sensor or there are a plurality of microphone sensors, and at least one of the microphone sensors is disposed in an area where the first key is located.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present application is a U.S. National Phase Entry of International Application No. PCT/CN2023/112176 having an international filing date of Aug. 10, 2023, which claims the priority of the patent application No. 202211057463.2, filed to the CNIPA on Aug. 31, 2022 and entitled “Audio Playback Device, Audio Playback Method Thereof and Storage Medium”. The above-identified applications are hereby incorporated by reference. TECHNICAL FIELD Embodiments of the disclosure relates to but is not limited to the technical field of audio, in particular to an audio playback device, an audio playback method thereof and a storage medium. BACKGROUND With its portability and powerful processing power, laptop computer has become an important office tool in daily life. However, in the process of playing music or video with speakers, laptops often produce “sizzling” noises, which affects the user experience. SUMMARY The following is a summary of subject matters described herein in detail. This summary is not intended to limit the protection scope of claims. An Embodiment of the Present Disclosure Provides an Audio Playback Method of an Audio Playback Device, Including: acquiring an audio resonance table of the audio playback device, wherein the audio resonance table includes one or more first frequency points and a first audio gain corresponding to the first frequency points, when the audio playback device outputs audio using the first audio gain at the first frequency point, the signal gain of the generated harmonic band signal is less than or equal to a preset harmonic gain threshold; processing the audio to be output according to the first frequency point and the first audio gain in the audio resonance table; and outputting the processed audio. In some exemplary embodiments, before the method, it further includes: determining the scan frequency list; performing one or more single frequency point audio tests on each scan frequency point in the scan frequency point list to determine a first audio gain corresponding to each scan frequency point, the single frequency point audio test includes: playing a single frequency point audio, the single frequency point audio generates a baseband signal and a harmonic band signal, determining a signal gain of the harmonic band signal, and recording the audio gain corresponding to the current single frequency point audio as the first audio gain corresponding to the single frequency point when the signal gain of the harmonic band signal is lower than a preset harmonic gain threshold; and generating an audio resonance table of the audio playback device. In some exemplary embodiments, the performing of one or more single frequency point audio tests on each scan frequency point in the scan frequency point list includes: initializing the audio gain of the current scan frequency point; outputting a single frequency point audio of the current scan frequency point, wherein the single frequency point audio is propagated through vibration of air and a structural member of the audio playback device to generate a baseband signal and a harmonic band signal; determining the signal gain of the harmonic band signal and determining whether the signal gain of the harmonic band signal is less than or equal to a preset harmonic gain threshold; when the signal gain of the harmonic band signal is less than or equal to the preset harmonic gain threshold, recording the audio gain of the current output single frequency point audio as the first audio gain corresponding to the current scan frequency point; and when the signal gain of the harmonic band signal is greater than the preset harmonic gain threshold, reducing the audio gain of the current single frequency point audio, and returning to the step of outputting the single frequency point audio of the current scan frequency point and continuing to execute in a loop. In some exemplary embodiments, when reducing the audio gain of the current output single frequency point audio, the audio gain is varied by z dB each time, where z is between −1 and −3. In some exemplary embodiments, the determining of the scan frequency list includes: determining a lowest scan frequency point located between 20 Hz and 30 Hz, a highest scan frequency point located between 450 Hz and 650 Hz, and a frequency scan step size. In some exemplary embodiments, the preset harmonic gain threshold is less than-1 dB. In some exemplary embodiments, the method further includes: acquiring an equalizer data table of the audio playback device; generating a comprehensive signal gain table according to the audio resonance table and the equalizer data table; and processing the audio to be output according to the comprehensive signal gain table. In some exemplary embodiments, the generating of a comprehensive signal gain table according to the audio resonance table and the equalizer data table includes: generating an initial signal gain table according to the e