Audio output method and device, harmonic distortion filtering device and terminal

A harmonic distortion and audio output technology, which is applied in the field of data processing, can solve the problems of large distortion in the distribution of distortion frequency bands and affect the listening effect, so as to reduce the harmonic distortion problem and improve the auditory effect

Pending Publication Date: 2018-09-28
GEER TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0002] At present, terminals with audio output function will have harmonic distortion when outputting audio. This harmonic distortion is generally caused by the physical structure of the terminal and other reasons. The distribution of such distortion frequency bands is stable and the distortion is large, which affects the listening effect.

Method used

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  • Audio output method and device, harmonic distortion filtering device and terminal
  • Audio output method and device, harmonic distortion filtering device and terminal
  • Audio output method and device, harmonic distortion filtering device and terminal

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Embodiment Construction

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0057] Please refer to figure 1 , figure 1 A flow chart of the audio output method provided by the embodiment of the present invention; the method may include:

[0058] S100. Pick up the audio signal of the speaker.

[0059] Harmonic distortion is generally caused by the physical structure of the terminal and other reasons. This kind of dist...

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Abstract

The invention discloses an audio output method, relates to the technical field of audio data processing and is used for solving the harmonic distortion problem of existing terminal audio output. The method comprises the steps of picking up audio signals of a loudspeaker; extracting the audio signals corresponding to each preset harmonic distortion band in the audio signals; carrying out inverted amplification operation on the audio signals corresponding to each preset harmonic distortion band to obtain harmonic distortion filtered audio signals; and adding the harmonic distortion filtered audio signals to corresponding original audio signals to form output audio signals. According to the method, a terminal system is taken as a whole to filter the harmonic distortion, so the harmonic distortion problem due to an integrated physical structure of a terminal in the prior art is reduced, and an auditory effect of a user for the audio signals is improved. The invention discloses an audio output device, a harmonic distortion filtering device, the terminal and a computer readable memory medium which have the beneficial effects.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to an audio output method, device, harmonic distortion filtering device, terminal and computer-readable storage medium. Background technique [0002] At present, terminals with audio output function will have harmonic distortion when outputting audio. This harmonic distortion is generally caused by the physical structure of the terminal and other reasons. The distribution of such distortion frequency bands is stable and the distortion is relatively large, which affects the listening effect. For example, the harmonic distortion that exists after most earphone products are designed is generally caused by physical factors such as the speaker unit and cavity structure. [0003] Among them, harmonic refers to a kind of distortion of normal current waveform, which is generally emitted by nonlinear load. Harmonic distortion (HD) refers to the ratio of the root mean square ...

Claims

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Application Information

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IPC IPC(8): H04R3/00
CPCH04R3/00H04R2430/00
Inventor 铁广朋张杰
Owner GEER TECH CO LTD
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