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Audio data processing method and device, and mobile terminal

A technology of audio data and processing method, applied in the direction of electrical digital data processing, data processing input/output process, sound input/output, etc., can solve the problems of reduced loudness, poor sound quality, etc., to improve music experience and operation experience Effect

Active Publication Date: 2017-12-08
VIVO MOBILE COMM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide an audio data processing method, an audio data processing device, and a mobile terminal to solve the problems of poor sound quality and loudness reduction after binaural audio data is converted into monophonic audio data

Method used

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  • Audio data processing method and device, and mobile terminal
  • Audio data processing method and device, and mobile terminal
  • Audio data processing method and device, and mobile terminal

Examples

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Embodiment 1

[0033] refer to figure 1 As shown, the embodiment of the present invention provides an audio data processing method, which may specifically include steps 101-105:

[0034] Step 101: Extract the first volume corresponding to the first channel audio data and the second volume corresponding to the second channel audio data from the first audio data; the first audio data includes the first channel audio data and the first channel audio data Two-channel audio data.

[0035] In the embodiment of the present invention, the above-mentioned first audio data is stereo two-channel audio data.

[0036] Stereo two-channel audio data generally adopts multi-microphone positioning recording technology, and the sound is divided into two phases and recorded into left channel audio data and right channel audio data; when restoring, the left and right speakers are used to output the above left channel audio data and For the audio data of the right channel mentioned above, because the left and r...

Embodiment 2

[0062] refer to figure 2 As shown, the embodiment of the present invention provides an audio data processing method, which may specifically include steps 201-210:

[0063] Step 201: Obtain decoded first audio data of the target audio file; the above-mentioned first audio data includes first channel audio data and second channel audio data.

[0064] In an optional manner of the embodiment of the present invention, the first channel audio data and the second channel audio data after the target audio file is continuously obtained after being decoded by the codec processor can be set as a unit of time, for example, in 3 Continuously acquire the decoded PCM (Pulse Code Modulation, Pulse Code Modulation) audio data of the above target audio file in units of seconds.

[0065] If the above-mentioned target audio file needs to be downloaded for online play, the first audio data of the above-mentioned target audio file can be obtained by decoding the buffered data downloaded before pl...

Embodiment 3

[0107] refer to Figure 5 As shown, the embodiment of the present invention provides an audio data processing device, which may specifically include:

[0108] The first volume extraction module 501 is configured to extract the first volume corresponding to the audio data of the first channel and the second volume corresponding to the audio data of the second channel from the first audio data; the above-mentioned first audio data includes the above-mentioned first volume channel audio data and the above-mentioned second channel audio data;

[0109]A processing coefficient acquisition module 502, configured to acquire the amplification factor of the audio data of the first channel and the attenuation coefficient of the audio data of the second channel if the first volume is greater than or equal to the second volume;

[0110] An audio processing module 503, configured to amplify the audio data of the first channel according to the amplification factor, and attenuate the audio d...

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Abstract

The invention relates to an audio data processing method and device, and a mobile terminal. The audio data processing method comprises extracting first volume corresponding to first track audio data and second volume corresponding to second track audio data from first audio data; acquiring the amplification coefficient of the first track audio data and the attenuation coefficient of the second track audio data when the first volume is larger than or equal to the second volume; amplifying the first track audio data according to the amplification coefficient, and attenuating the second track audio data according to the attenuation coefficient; synthesizing the amplified first track audio data and the attenuated second track audio data into second audio data; and outputting the second audio data through a single track. According to the invention, the problem that when audio data of two tracks in double-track audio data have autocorrelation, and can cancel out each other due to phase difference, and therefore the tone quality of the synthesized single track audio data becomes worse, the loudness is reduced is avoided.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an audio data processing method, device and mobile terminal. Background technique [0002] In recent years, with the rapid development of mobile terminals, there are more and more scenes where users use external speakers to play audio data on mobile terminals, and the requirements for the loudness and sound quality of external speakers on mobile terminals are also getting higher and higher; but the actual situation The design of mobile terminals is becoming thinner and thinner, and the functional devices are becoming more and more compact. Most mobile terminals are equipped with only one external speaker, which can only play in mono; The audio sources are all two-channel stereo audio data; therefore, when entering the scene where audio data is played on the external speakers of the mobile terminal, the two-channel audio data will be pre-processed by the smartphone ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/16
CPCG06F3/165
Inventor 陈祎
Owner VIVO MOBILE COMM CO LTD
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