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Method and device for adjusting TV program volume and digital TV receiving terminal

A technology for TV programs and volume, applied in the field of digital TV receiving terminals to adjust the volume of TV programs, can solve problems such as large gaps in program volume, different audio levels of satellite signal sources, and unbalanced program volumes, and achieve the effect of consistent volume

Active Publication Date: 2019-06-25
SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the volume of programs received by digital TV receiving terminals generally has the problem of unbalanced volume. This is because different satellite programs use different reference audio, resulting in different audio levels of satellite signal sources, and the digital TV receiving terminal front-end system and The analog system is different. The front-end of the digital TV receiving terminal only monitors and switches the satellite programs, but does not perform audio equalization and re-encoding on the bit stream. As a result, the digital TV receiving terminal has a situation where the volume difference of some programs is too large, such as the central one. The 9-bar volume displayed on the TV is different from the 9-bar volume displayed on the TV in Shanghai TV

Method used

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  • Method and device for adjusting TV program volume and digital TV receiving terminal
  • Method and device for adjusting TV program volume and digital TV receiving terminal
  • Method and device for adjusting TV program volume and digital TV receiving terminal

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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 creative efforts fall within the protection scope of the present invention.

[0042] figure 1 It is a schematic diagram of the sound output of a traditional digital TV receiving terminal. First, the channel is demodulated, and the high-frequency signal is converted into a baseband signal through a tuner, and then the TS stream digital baseband signal is decoded through a demo, and then demultiplexed, and the source The decoding is output after digital-to-analog conversion, and an audio buffer is connected outside to amplify and output to the...

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Abstract

A method of adjusting a television program volume and an apparatus thereof, and a digital television receiving terminal are disclosed. In an embodiment of the invention, through detecting a level amplitude of a peak value volume of an audio signal to be output of a current channel, according to audio information corresponding to the peak value volume, a reference level amplitude of a reference channel corresponding to the audio information is acquired and a specific value of the reference level amplitude and the level amplitude of the peak value volume is acquired too. According to the specific value, a volume of the audio signal to be output is adjusted so that the volume of the audio signal to be output corresponding to each channel of each audio information is consistent with a volume corresponding to the audio information of the reference channel. Volumes output by the channels of the digital television receiving terminal are consistent so that audience hearing discomfort caused by a too loud volume or a too small volume output by the different channels of the digital television receiving terminal is not generated.

Description

technical field [0001] The invention relates to the technical field of digital television, in particular to a method and device for adjusting the volume of television programs and a digital television receiving terminal. Background technique [0002] At present, the volume of programs received by digital TV receiving terminals generally has the problem of unbalanced volume. This is because different satellite programs use different reference audio, resulting in different audio levels of satellite signal sources, and the digital TV receiving terminal front-end system and The analog system is different. The front-end of the digital TV receiving terminal only monitors and switches the satellite programs, but does not perform audio equalization and re-encoding on the bit stream. As a result, the digital TV receiving terminal has a situation where the volume difference of some programs is too large, such as the central one. The 9-bar volume displayed on the TV is different from t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/60H04N21/439
CPCH04N5/60H04N21/439
Inventor 丁前利
Owner SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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