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Loudness adjusting method and loudness adjusting device for audio signal

An audio signal and loudness technology, applied in the field of loudness adjustment methods and devices for audio signals, can solve problems such as sound quality degradation and poor user experience, and achieve the effect of improving user experience

Inactive Publication Date: 2019-11-12
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above-mentioned method of adjusting the audio volume will cause the degradation of the sound quality, and the user experience is not good

Method used

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  • Loudness adjusting method and loudness adjusting device for audio signal
  • Loudness adjusting method and loudness adjusting device for audio signal
  • Loudness adjusting method and loudness adjusting device for audio signal

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Embodiment Construction

[0028] 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 creative efforts fall within the protection scope of the present invention.

[0029] The "accompanied sound" mentioned in this article specifically refers to the sound in multimedia resources (such as video resources of TV) based on images. There are various types of TV programs, the program signal spectrum is complex, the level is different, and the loudness measurement and control are difficult, resulting in different lou...

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Abstract

The embodiment of the invention provides a loudness adjusting method and a loudness adjusting device for an audio signal. The loudness adjusting method for the audio signal comprises the following steps: carrying out mode matching on an input audio signal and loudness comfort zone information corresponding to a current playing volume, and when the audio signal is not matched with the loudness comfort zone information, calculating a loudness value of the audio signal, determining a gain adjustment value according to the loudness value of the audio signal and a standard loudness value, and performing gain control on the audio signal according to the gain adjustment value. According to the embodiment of the invention, the gain control can be dynamically carried out according to the actual situation of the audio signal. The user experience is improved.

Description

technical field [0001] Embodiments of the present invention relate to digital signal processing technologies, and in particular to a method and device for adjusting the loudness of audio signals. Background technique [0002] With the transition from analog TV to digital TV, the problem of large differences in audio volume between channels has aroused widespread concern. In the process of transferring from cable digital to digital in my country, the problem of inconsistency in audio volume of TV programs is more obvious. [0003] There are various TV programs, the program signal spectrum is complex, the level is different, and the loudness measurement and control are difficult, resulting in different loudness of different programs on the same channel and between different channels, and the audience has to adjust the volume frequently to satisfy the perception of loudness comfort needs. In order to solve the problem of loudness jump, use the average power or voltage based on...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/439H04N5/60
CPCH04N5/602H04N21/439
Inventor 张利红
Owner HISENSE VISUAL TECH CO LTD