Dynamic gain equalization system and method for sound equipment

A technology of dynamic gain and equalization method, applied in speech analysis, frequency/direction characteristic device, signal processing and other directions, can solve the problems of equalization gain distortion, reduction of audio output effect of sound system, etc., and achieve the effect of avoiding sound distortion

Pending Publication Date: 2022-06-17
广州市迪声音响有限公司
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Problems solved by technology

However, after the howling is suppressed, the sound system often becomes silent, resulting in a reduction in the audio output of the sound system
In addition, when the input sound signal of the existing audio system is small, the performance of some audio frequency bands is insufficient. Although the performance can be improved by adjusting the equalization gain of this frequency band, when the signal of this frequency band increases, the pre-improved The equalization gain is easy to cause distortion

Method used

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  • Dynamic gain equalization system and method for sound equipment
  • Dynamic gain equalization system and method for sound equipment
  • Dynamic gain equalization system and method for sound equipment

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[0058] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0059] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0060] like figure 1 As shown, an embodiment of the present invention provides a dynamic gain equalization method for sound, the method comprising the following steps:

[0061] S100, detecting the first sound signal before passing through the notch filter and the second sound signal after passing through the notch filter, and obtaining the first volume, the second volume and the second frequency after the detection;

[0062] S200, processing the...

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Abstract

The invention is suitable for the technical field of sound processing, and provides a dynamic gain equalization system and method for sound equipment, and the method comprises the following steps: detecting a first sound signal and a second sound signal before and after passing through a wave trap, and obtaining a first volume, a second volume and a second frequency; processing the second sound signal to obtain a third sound signal; judging the third sound signal; when the volume of the third sound signal belongs to the preset volume range value and the frequency belongs to the preset frequency range value, directly outputting; and when the volume of the third sound signal does not belong to the preset volume range value and / or the frequency does not belong to the preset frequency range value, performing gain equalization processing on the third sound signal. The sound signals before and after passing through the wave trap are detected and compared, and the volume value of the second sound signal is increased from the second volume to the first volume, so that the playing effect of the sound equipment is ensured; and gain processing is not carried out on all sound signals, so that sound distortion is avoided as far as possible.

Description

technical field [0001] The invention relates to the technical field of sound processing, in particular to a dynamic gain equalization system and method for sound. Background technique [0002] In order to avoid howling in the audio, measures to suppress howling need to be taken. At present, it is mainly suppressed by a notch filter. However, the audio system often becomes mute after the howling is suppressed, resulting in a reduction in the audio output of the audio system. In addition, when the input sound signal is small, the existing audio system is insufficient for some audio frequency bands. Although the performance can be improved by adjusting the equalization gain of this frequency band, when the signal of this frequency band increases, the performance of the audio frequency band is increased in advance. The equalization gain is easy to cause distortion. Therefore, there is a need to provide a dynamic gain equalization system and method for audio, aiming at solving ...

Claims

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Application Information

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IPC IPC(8): H04R3/00H04R1/22G10L25/51
CPCH04R3/00H04R1/22G10L25/51H04R2430/01Y02D30/70
Inventor 徐海汪泽培
Owner 广州市迪声音响有限公司
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