Audio processing method and audio processing device

Abstract

The present invention discloses an audio processing method and an audio processing device, wherein the audio processing method comprises the steps of obtaining the audio data needing to be processed; carrying out the high-pass filtering processing and the gain control processing on the audio data orderly to obtain a high frequency component of the audio data; carrying out the low-pass filtering processing and the gain control processing on the audio data orderly to obtain a low frequency component of the audio data; obtaining the front N numerical values of the low frequency component, carrying out the convolution operation processing on the front N/2 numerical values and the back N/2 numerical values of the front N numerical values and a transfer coefficient separately, then summing and carrying out the M-order filtering operation to obtain the high frequency band data of the low frequency component; generating the first harmonic and the second harmonic of the high frequency band data, and carrying out the convolution operation processing to obtain the virtual bass data; carrying out the logic additive operation on the high frequency component and the virtual bass data of the above audio data, and then outputting the processed audio data. The technical scheme of the present invention enables the bass effect of the audio to be improved effectively.

Description

technical field [0001] The present invention relates to the audio field, in particular to an audio processing method and an audio processing device. Background technique [0002] Audio is an important part of multimedia equipment, and the quality of the sound can directly affect the user's experience. Therefore, without good sound, even if there are many applications of multimedia equipment, there are defects. [0003] With the requirements of users on the volume and shape of multimedia devices (such as smart TVs, handheld devices and other electronic devices), multimedia devices are becoming more and more light and thin. However, this makes the speaker size of multimedia devices also It is greatly limited, and the size limitation causes the resonant frequency of the speaker to be high, so it is impossible to radiate signal components lower than its resonant frequency, resulting in the absence of the bass part of the audio. Although the bass part of the audio can be restore...

AI Technical Summary

Problems solved by technology

[0002] Audio is an important part of multimedia equipment, and the quality of the sound can directly affect the user's experience. Therefore, without good sound, even if there are many applications of multimedia equipment, it will be flawed.

[0003] With the requirements of users on the volume and shape of multimedia devices (such as smart TVs, handheld devices and other electronic devices), multimedia devices are becoming more and more light and thin. However, this makes the speaker size of multimedia devices also It is greatly limited, and the size limit causes the speaker's resonance frequency to be high, so it is impossible to radiate signal components below its resonance frequency, resulting in the absence of the bass part of the audio

Although the bass part of the audio can be restored by configuring subwoofer speakers for multimedia equipment, however, because the price of subwoofer speakers is usually higher, configuring subwoofer speakers for multimedia equipment will undoubtedly increase user costs. At the same time, the volume of subwoofer speakers is usually Large and not easy for users to carry

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