Volume adjusting method and device

Abstract

The invention discloses a volume adjusting method, which is used for realizing adjustment of volume to improve the listening comfort. The method comprises the following steps of: performing audio decoding on an audio signal to obtain a decoded audio signal; performing digital-to-analog conversion on the decoded audio signal; outputting the audio signal; performing volume analysis on the output audio signal to obtain the value of the volume; judging whether the obtained value of the volume is in a preset volume range; and when the value of the volume is not in the preset volume range, adjusting the amplifying or reducing times of the audio signal in the digital-to-analog conversion. The invention further discloses a device for implementing the method.

Description

technical field [0001] The invention relates to audio processing and embedded fields, in particular to a volume adjustment method and device. Background technique [0002] With the development of electronic technology, various electronic products are flooding around people. While enjoying entertainment, people most seek better audio-visual effects. [0003] General electronic systems have audio processing functions, such as car DVDs, laptops, mobile phones, audio and video equipment, tablets, TVs, Bluetooth headsets, etc. These systems often encounter the problem that the volume of the audio playback is high and low. For example, when using a computer to play multiple mp3 (MPEG-1 layer 3MPEG-1, audio third-layer standard) songs, there are differences due to the different volumes of different songs when they are recorded. If the same signal amplification factor is used during playback (ie Audio signal gain), then cause the volume of some songs to be heard to be too low, wh...

AI Technical Summary

Problems solved by technology

For example, when using a computer to play multiple mp3 (MPEG-1 layer 3MPEG-1, audio third-layer standard) songs, there are differences due to the different volumes of different songs when they are recorded. If the same signal amplification factor is used during playback (ie audio signal gain), it will cause the volume of some songs to be heard too low, while the volume of some songs is too loud

Sometimes the sudden high volume even damages the hearing, and the low volume also makes the music effect unsatisfactory and produces bad effects

When the TV is playing different channels, there is a similar problem. When switching the TV channel, the volume may suddenly become too low or too high, causing hearing discomfort

[0004] But at present, most of the volume is manually adjusted manually. If the volume is high and low, it needs to be manually adjusted frequently, which is extremely inconvenient to operate.

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