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Method and device for pre-processing voice frequency

A pre-processing device and pre-processing technology, applied in the field of communication, can solve problems such as loud and small volume, and achieve the effect of improving user experience

Inactive Publication Date: 2014-07-16
NUBIA TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide an audio preprocessing method and device, aiming to solve the problem of the volume fluctuating when switching and playing between different audio files, so as to keep the volume in an appropriate range and improve the user experience. to experience

Method used

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  • Method and device for pre-processing voice frequency

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0042] see figure 1 , propose the first embodiment of the audio preprocessing method of the present invention, the audio preprocessing method includes the following steps:

[0043] Step S101: read the audio file, and obtain the volume parameter of the audio file

[0044] When the user chooses to play an audio file, before playing the audio file, the audio data of the entire audio file is first scanned to obtain volume parameters of the entire audio file. The volume parameter is a parameter that can affect the volume of the audio, preferably the waveform amplitude of the audio. The audio files include media files such as music, recording, video, video, and movie.

[0045] Step S102: Determine the volume parameter size of the audio file

[0046] The present invention sets a preset range for the volume in advance, and the preset range can be set at the factory, can be customized by the user, or can be automatically set or generated according to preset rules, such as the volume...

no. 2 example

[0053] see figure 2 , propose the second embodiment of the audio preprocessing method of the present invention, the audio preprocessing method includes the following steps:

[0054] Step S201: read the audio file, and obtain the volume parameter of the audio file

[0055] Step S202: Determine the size of the volume parameter of the audio file

[0056] Specifically, it is judged whether the volume parameter of the audio file to be played is within a preset range. In this embodiment, the preset range includes an upper limit value and a lower limit value. If it is within the preset range, the audio file does not need to be preprocessed, and directly proceeds to step S205. If it is not within the preset range, the audio file needs to be preprocessed to adjust the volume parameter to the preset range, wherein, if the maximum value in the volume parameter is greater than the upper limit value, then enter step S203; If the maximum value is less than the lower limit, go to step S204...

no. 3 example

[0065] see image 3 , propose the third embodiment of the audio preprocessing method of the present invention, the audio preprocessing method includes the following steps:

[0066] Step S301: read the audio file, and obtain the volume parameter of the audio file

[0067] Step S302: Determine the size of the volume parameter of the audio file

[0068] Specifically, the average value of the volume parameter of the audio file to be played is calculated, and it is judged whether the average value is within a preset range, and the preset range in this embodiment includes an upper limit value and a lower limit value. If it is within the preset range, the audio file does not need to be preprocessed, and directly enters step S305. If it is not within the preset range, the audio file needs to be preprocessed to adjust the average value of the volume parameter to the preset range, wherein, if the average value of the volume parameter is greater than the upper limit, then enter step S3...

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Abstract

The invention discloses a method and device for pre-processing voice frequency. The method for pre-processing the voice frequency comprises the step of acquiring the volume parameters of an audio file, and the step of adjusting the volume parameters to be within the preset range when the volume parameters of the audio file are not within the preset range. The problem that the volume is sometimes high and sometimes low when different audio files are switched to be played is solved, the volume is kept within an appropriate range all the time, and the user experience is improved.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to an audio preprocessing method and device. Background technique [0002] People widely utilize audio player devices to play audio files such as music and recordings, which can not only enrich entertainment life, obtain audio-visual enjoyment, but also improve work and study efficiency. In the prior art, when the audio playback device switches and plays between different audio files, sometimes the volume will fluctuate. For example, when playing the previous song, the volume is moderate, but when playing the next song, the volume becomes very high. Large, so that the user has to re-adjust the volume. After careful research, the inventor found that the volume parameters of the original audio files are not the same, so although the user does not adjust the volume of the audio playback device, when switching the audio file from one to another, the played volume will als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03G3/20
Inventor 张圣杰伍智明
Owner NUBIA TECHNOLOGY CO LTD
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