A method and device for adjusting audio gain

An audio gain and audio technology, applied in the direction of gain control, amplification control, electrical components, etc., can solve the problems of poor user experience, small gain audio volume, high gain audio volume is too large, etc., to achieve the effect of enhancing user experience
CN104579212BActive Publication Date: 2017-04-19HISENSE VISUAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HISENSE VISUAL TECH CO LTD
Publication Date
2017-04-19

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Abstract

An embodiment of the invention discloses a method and device for adjusting audio gains. The method includes: acquiring to-be-played audio and the gain of each audio frame in the to-be-played audio, and detecting the amplitude of environment noises; determining the amplification factor of the gain of each audio frame, wherein the amplification factor of the small gain of the audio frame is larger than the amplification factor of the large gain of the audio frame; amplifying and outputting each audio frame according the amplification factor of the gain of each audio frame. The method has the advantages that the to-be-played audio is adjusted by the amplification factor of the gain of each audio frame, the audio frames having different gains have different adjusting variables, the audio frames with small gains can be amplified according to the environmental noises, large change of the largest volume of the to-be-played audio is avoided, the audio frames with the small gains can be prevented from being covered by the environment noises, super-large volume which cannot be accepted by users is avoided, and user experience is enhanced.
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Description

technical field

[0001] The invention relates to the field of audio processing, in particular to a method and device for adjusting audio gain. Background technique

[0002] Traditional electronic devices do not have the function of automatically adjusting the volume, which leads to large differences in the playback effects of electronic devices under different noise environments. In order to solve this problem, some manufacturers have begun to study how to adjust the output power by detecting the volume of external noise, and suppress the influence of noise by adjusting the output power of the power amplifier when the noise occurs, that is, when the ambient noise is large, the volume value of the device will be automatically increased . This approach solves the problem that most sound effects are affected by ambient noise.

[0003] However, when the ambient noise is relatively large, the output volume of the power amplifier is increased, which is likely to output a huge vol...

Claims

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