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Audio signal enhancement method, device, storage medium and processor

An audio signal and enhancement processing technology, applied in stereo systems, electrical components, etc., can solve the problem of inability to enhance the bass of audio signals, and achieve the effect of improving the playback effect and the method is simple

Active Publication Date: 2021-12-03
GUANGZHOU SHIYUAN ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide an audio signal enhancement method, device, storage medium, and processor to at least solve the technical problem that the audio signal cannot be effectively enhanced with bass

Method used

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  • Audio signal enhancement method, device, storage medium and processor
  • Audio signal enhancement method, device, storage medium and processor
  • Audio signal enhancement method, device, storage medium and processor

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Embodiment 1

[0033] According to an embodiment of the present invention, an embodiment of a method for enhancing an audio signal is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0034] figure 1 It is a flowchart of an audio signal enhancement method according to an embodiment of the present invention. like figure 1 As shown, the method includes the following steps:

[0035] In step S102 , overlapping frames are performed on the input original audio signal to obtain a plurality of audio frames.

[0036] In the technical solution provided by the above step S102 of the present invention, the input original audio signal may be an audio signal that needs to be processed in real ...

Embodiment 2

[0091] The technical solutions of the embodiments of the present invention are illustrated below in combination with preferred implementation modes.

[0092] With the miniaturization and convenience of multimedia equipment, the selection of speakers is getting smaller and smaller. Due to the limitation of the physical structure of the small speaker, it cannot effectively reproduce the low-frequency components in the signal, and the bass reproduction of the audio directly affects the sense of hearing such as fullness and thickness of the sound. Therefore, the improvement of the bass reproduction effect of small loudspeakers has always been a hot research topic.

[0093] In the related art, for the improvement of loudspeaker reproduction bass effect, mainly contain two kinds of directions: one is to adopt the form of equalizer (adjusting EQ) to directly increase the gain of low frequency, and this kind of method can improve the bass effect to a certain extent. Playback effect, ...

Embodiment 3

[0141] The embodiment of the present invention also provides an audio signal enhancement device. It should be noted that the apparatus for enhancing an audio signal in this embodiment may be used to implement the method for enhancing an audio signal in the embodiment of the present invention.

[0142] Figure 7 is a schematic diagram of an audio signal enhancement device according to an embodiment of the present invention. like Figure 7 As shown, the audio signal enhancement device 70 may include: a frame acquisition unit 71 , a filter unit 72 , a separation unit 73 , a processing unit 74 and a superposition unit 75 .

[0143] The framing unit 71 is configured to perform overlapping frame framing on the input original audio signal to obtain a plurality of audio frames.

[0144] The filtering unit 72 is configured to perform high-pass filtering on multiple audio frames to obtain high-frequency audio signals, and perform low-pass filtering on multiple audio frames to obtain ...

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Abstract

The invention discloses an audio signal enhancement method, device, storage medium and processor. Wherein, the method includes: performing overlapping frames on the input original audio signal to obtain a plurality of audio frames; performing high-pass filtering on the plurality of audio frames to obtain a high-frequency audio signal, and performing low-pass filtering on the plurality of audio frames to obtain A low-frequency audio signal; separating a time-domain impact signal and a time-domain harmonic signal from the low-frequency audio signal; performing virtual bass enhancement processing on the time-domain impact signal to obtain a first virtual bass enhancement signal, and virtualizing the time-domain harmonic signal Bass enhancement processing to obtain a second virtual bass enhancement signal; superimposing the high-frequency audio signal, the first virtual bass enhancement signal and the second virtual bass enhancement signal to obtain a target virtual bass enhancement signal. The invention solves the technical problem that it is impossible to effectively enhance the bass of the audio signal.

Description

technical field [0001] The present invention relates to the field of audio signal processing, in particular to an audio signal enhancement method, device, storage medium and processor. Background technique [0002] At present, with the miniaturization and convenience of multimedia equipment, the selection of speakers is getting smaller and smaller. Due to the limitations of its physical structure, small speakers cannot effectively reproduce the low-frequency components in the signal, and the bass reproduction of the audio directly affects the fullness and thickness of the sound. [0003] For the improvement of loudspeaker reproduction bass effect, the form of equalizer (adjusting EQ) can be used to directly increase the gain of low frequency. This method can improve the reproduction effect of the bass to a certain extent, but the gain range is difficult to control, it is easy to cause irreversible damage to the speaker, and it will reduce the service life of the speaker, so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04S7/00
CPCH04S7/30H04S7/307
Inventor 江建亮
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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