Volume adjusting method and volume adjusting device

A volume adjustment and volume technology, which is applied in the directions of amplification control, electrical components, gain control, etc., can solve problems such as sudden changes in volume, and achieve the effect of preventing sudden changes.

Inactive Publication Date: 2016-03-30
SHENZHEN TCL NEW-TECH CO LTD
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  • Abstract
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Problems solved by technology

[0003] The main purpose of the present invention is to solve the technic...

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  • Volume adjusting method and volume adjusting device
  • Volume adjusting method and volume adjusting device
  • Volume adjusting method and volume adjusting device

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specific Embodiment approach

[0042] In this embodiment, the audio signal to be played is an audio signal to be played by a television set, and in other embodiments, it may also be an audio signal to be played by a computer, a radio or other equipment. The above method of extracting the audio sub-signal according to the preset frequency can be selected according to actual needs, and the audio signal can be divided into multiple audio sub-signals according to the frequency through the filter bank. The frequency range of human hearing is 20Hz to 20kHz. Preferably, the preset frequency range is 20Hz to 20kHz. Within this range, it can be segmented according to frequency. The way of frequency segmenting can be selected according to actual needs. The way of segment, can also adopt the way of non-uniform segment. In this embodiment, the specific implementation manner of extracting the audio sub-signal according to the preset frequency is as follows:

[0043] The first implementation is as follows. Step S10 incl...

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Abstract

The invention discloses a volume adjusting method and a volume adjusting device. The method comprises the following steps: segmenting a to-be-played audio signal in a preset frequency range, and extracting audio sub signals in corresponding frequency bands; adjusting the volume values of the audio sub signals according to preset volume balancing rules; superposing the adjusted audio sub signals to generate a preprocessed audio signal; calculating a gain value corresponding to the preprocessed audio signal according to the volume value of the preprocessed audio signal and a preset target volume value; and adjusting the volume value of the preprocessed audio signal according to the gain value, and outputting the preprocessed audio signal after adjustment. Therefore, the volume output by a television remains the same, and the phenomenon that the volume changes suddenly when the television is switched from one channel/program to another channel/program is prevented.

Description

technical field [0001] The invention relates to the technical field of audio playback, in particular to a volume adjustment method and device. Background technique [0002] At present, when people are watching TV, when switching between TV channels, or when switching between TV programs and advertising programs in a certain channel, due to the different modulation degrees of different channels or program sources, It will cause the volume of the TV to increase or decrease suddenly when switching, and the user needs to constantly adjust the volume of the TV to keep the volume of the TV within an appropriate range, which results in cumbersome operations for the user. Contents of the invention [0003] The main purpose of the invention is to solve the technical problem of sudden change in volume when the TV switches channels or programs. [0004] In order to achieve the above object, the present invention provides a method for volume adjustment, the method for volume adjustme...

Claims

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Application Information

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IPC IPC(8): H03G3/20
Inventor 刘飞祥高伟标何文辉
Owner SHENZHEN TCL NEW-TECH CO LTD
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