Automatic volume adjusting device, method and mobile terminal

An automatic adjustment and volume adjustment technology, which is applied in the field of communication, can solve problems such as unsolvable, volume difference, and unsatisfactory usage conditions, and achieve the effect of satisfying sensory experience and consistent and stable output power

Inactive Publication Date: 2008-09-17
HUAWEI DEVICE (SHENZHEN) CO LTD
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  • Abstract
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  • Application Information

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) vol

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  • Automatic volume adjusting device, method and mobile terminal
  • Automatic volume adjusting device, method and mobile terminal
  • Automatic volume adjusting device, method and mobile terminal

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[0029] The preferred embodiments of the present invention will be described below with reference to the drawings.

[0030] For ease of description, the mobile terminal in this embodiment takes a mobile phone as an example. It should be understood that the embodiment of the present invention is not limited to a mobile phone, and may also be other mobile terminals such as a PDA.

[0031] Please refer to figure 1 As shown, the audio output of the mobile phone is basically implemented according to the following process: First, different audio sources will be decoded into a unified PCM (Pulse Code Modulation) format audio code; then, the PCM digital signal is filtered and digital Amplify the processing to adjust the signal quality; after the processing is completed, perform D / A conversion to convert the PCM digital signal into an analog audio signal; finally, use the analog circuit for filtering and signal amplification processing, and finally output the signal to the receiver, Differ...

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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...

Claims

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Application Information

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IPC IPC(8): H03G3/20H04M1/60
Inventor 陈磊
Owner HUAWEI DEVICE (SHENZHEN) CO LTD
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