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Audio processing method and device as well as audio playing method and device

A technology of audio processing and audio playback, applied in signal processing to reduce distortion, electronic editing of digital analog information signals, recording carrier editing, etc., can solve problems such as audio playback distortion, improve accuracy, speed up processing speed, and reduce processing time. effect of difficulty

Inactive Publication Date: 2010-02-03
王祐凡
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Problems solved by technology

[0006] In order to solve the technical defect in the prior art that it takes time to stabilize the front part of the next audio segment during the decompression process of the preceding and subsequent audio segments, resulting in distortion of the audio playback, the present invention provides an audio processing method, device, and audio playback method and device, It can improve the accuracy of the waveform after audio decompression, and can seamlessly play back and forth audio clips, so that the connection can be played smoothly

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  • Audio processing method and device as well as audio playing method and device
  • Audio processing method and device as well as audio playing method and device
  • Audio processing method and device as well as audio playing method and device

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] refer to Figure 4 , the audio processing method of the present invention comprises the following steps:

[0024] 401: Set the size of the segment of the time-domain audio data to be cut to be a multiple of the selected compressed frame size;

[0025] 402: Cut the time-domain audio data according to the fragment size to obtain multiple audio fragments. Among the multiple audio fragments, the end of the previous audio fragment is at least one frame the same as the front of the subsequent audio fragment. refer to Figure 5 ;

[0026] 403: Perform frequency-domain compression on the multiple audio clips to obtain frequency-domain audio data.

[0027] refer to Figure 6 , after compression using the above method, the same frame at the front of the next audio clip will be distorted when decompressed. refer to Figure 7 , discard the frame, and ...

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Abstract

The invention discloses audio processing method and device as well as audio playing method and device. The audio processing method comprises the following steps: setting the size of a segment of timedomain audio data to be cut as the multiple of the size of a selected compressed frame; cutting the time domain audio data according to the size of the segment to obtain a plurality of audio segments,wherein the tail part of the previous audio segment in the audio segments and the front part of the latter audio segment at least have one same frame; and carrying out frequency domain compression tothe audio segments to obtain frequency domain audio data. The invention can improve the waveform accuracy after the audio decompression, can play previous and latter audio segments continuously and ensure that the connecting part is played smoothly.

Description

technical field [0001] The present invention relates to the technical field of audio processing, in particular to an audio processing method and device, and an audio playing method and device. Background technique [0002] In audio processing technology, it is necessary to convert the recorded audio data in the time domain into frequency domain data for storage, and perform inverse transformation during playback to convert the frequency domain audio data into time domain data for playback. [0003] In the process of saving, it will be quite time-consuming to edit a long audio file into a certain structure, so it is usually necessary to automatically cut the time-domain audio file into many segments, for example, cut the original audio file into multiple segments with a length of 15 seconds. fragment. When cutting automatically, the cutting point may not be a silent place, so the beginning of some audio clips is just in the middle of a certain sound wave, such as figure 1 s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10G11B20/22G11B27/031
Inventor 王祐凡
Owner 王祐凡
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