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Method for adjusting audio equalizing and audio system for providing equalizing adjustment

A technology of equalization and audio, which is applied to the components of the TV system, tone control, amplification control, etc., can solve problems such as distortion, achieve large gain, meet auditory requirements, and reduce the degree of distortion

Active Publication Date: 2017-05-24
HISENSE VISUAL TECH CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for adjusting audio equalization and an audio system for equalization adjustment, to solve the problem that the energy of some frequency bands in the audio signal is relatively large, or the user greatly adjusts the EQ of the main unit and the energy of the audio signal is small The gain corresponding to the frequency band causes the audio signal to be processed by the host EQ unit for gain processing, and then amplified by the power amplifier EQ unit to distort the problem

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  • Method for adjusting audio equalizing and audio system for providing equalizing adjustment

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0029] figure 2 It is a structural diagram of an audio system that provides equalization adjustment. like figure 2 As shown, the control system includes a host EQ unit 104 , a power amplifier EQ unit 105 , a D / A conversion unit 106 , a gain adjustment unit 108 and a speaker 107 .

[0030] Wherein, the power amplifier EQ unit 105 is used to amplify the current frame audio signal received from the host EQ unit 104; the D / A conversion unit 106 is connected to t...

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Abstract

The invention relates to the technical field of audio processing, and particularly relates to a method for adjusting audio equalizing and an audio system for providing equalizing adjustment. The method comprises the steps that a gain adjusting unit receives a current frame audio signal amplified by a power amplifier EQ unit; the gain adjusting unit calculates the energy value of each band of the current frame audio signal according to the current frame audio signal and obtains gain adjusting parameters according to the energy value of each band of the current frame audio signal and the gain parameters corresponding to each band; and the gain adjusting unit transmits the gain adjusting parameters to a host EQ unit so that the host EQ unit is enabled to perform gain processing on the next frame audio signal according to the gain adjusting parameters. According to the method for adjusting audio equalizing and the audio system for providing equalizing adjustment, the problem in the prior art that the auditory requirements of the user cannot be met due to distortion of the audio signal caused by the fact that gain processing is performed on the audio signal through the host EQ unit and then the audio signal is amplified by the power amplifier EQ unit can be solved.

Description

technical field [0001] The invention relates to the technical field of audio processing, in particular to a method for adjusting audio equalization and an audio system providing equalization adjustment. Background technique [0002] EQ (Equalizer, equalizer) is an electronic device that can adjust the amount of signal amplification in each frequency band. At present, EQ has been widely used in television systems. For example, in a TV set, two EQs are usually used, which are respectively set inside the host chip and the power amplifier, that is, the host EQ unit and the power amplifier EQ unit. [0003] like figure 1 As shown, the principle of the TV EQ adjustment is: the TV receives the TV signal through the signal input port, and after being processed by the tuning unit 101, the TV signal is demodulated and decoded to obtain an image signal and an audio signal. Wherein, after the image signal is processed by the video processing unit 102, it is played by the display scre...

Claims

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Application Information

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IPC IPC(8): H04N5/60H04N21/439H03G5/00H03G5/02H03G5/16
CPCH03G5/005H03G5/025H03G5/165H04N5/60H04N21/439
Inventor 邢文峰张超王天华
Owner HISENSE VISUAL TECH CO LTD
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