Automatic volume adjusting device, method and mobile terminal

Abstract

The present invention discloses a sound volume automatic adjusting device which comprises the following components: a decoding module, a sound source reference power testing module, an output gain adjusting module and an audio outputting module. An embodiment of the invention also discloses a mobile terminal which comprises a sound volume automatic adjusting device. The invention also discloses a method for automatically adjusting the sound volume. The invention realizes the continuity and stability of the final output power of the audio output device in the mobile terminal. The user feels that the current sound volume always in a most appropriate value and the visual feeling of the user is better satisfied.

Description

technical field [0001] The invention relates to the communication field, in particular to an automatic volume adjustment device, method and mobile terminal. Background technique [0002] At present, there are more and more audio-related applications on handheld terminal devices, such as calls, MP3 playback, video playback, etc.; in order to be suitable for different usage scenarios, more and more audio hardware is used, such as wired headphones , handset, external speaker, bluetooth headset and so on. However, each application and audio hardware device needs to adjust the volume, so that the user feels that the current volume reaches an optimum value and satisfies the user's sensory experience. And all volume adjustments are actually achieved by adjusting the audio-related analog circuits on the mobile phone and the amplification gains of the digital circuits to achieve the purpose of adjusting the audio output power. [0003] The current basic volume setting method is tha...

AI Technical Summary

Problems solved by technology

[0004] Yet above-mentioned existing scheme has following defect: 1, for different audio sources and different usage scenarios, the volume that the user feels is different in thousands ways, and the default setting can't satisfy all usage situations at all, and the user has to always take the trouble like this Manually adjust the volume in real time, which is both troublesome and affects the user's sensory experience. For example, each audio file has already set its own basic volume value in advance during the production process. Different files, the set basic volume value The volume value is different. When the user uses a mobile phone (or PC) to play music, he will feel that the same mobile phone (or PC) volume level setting, different files (such as two different MP3 songs) ), the volume of the playback will be very different

However, the application scenarios of this technical solution are very limited. It is only aimed at the process of the user using the mobile phone to make a call, and it cannot solve the problem of the mobile phone automatically adjusting the volume power in real time when the volume transmitted by the other party changes.

For example, if the distance between the other party and the microphone is changing, or the pitch of the speaking voice is changing, it will still cause the local sound output power to be unable to be adjusted automatically in real time to meet the user's sensory experience.

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