Digital audio time domain compression method based on audio fragment segmentation

Abstract

The invention relates to a digital audio time domain compression method based on audio fragment segmentation, belonging to the technical field of audio processing. The method comprises the following steps of: by extracting the audio characteristic in a digital audio in a piece of music, analyzing and obtaining the structure information of the music; selecting and deleting a plurality of deletable audio fragment sequences according to the structure information of the music; and finally carrying out time domain compression on the deleted digital audio with the digital audio time domain compression method so as to change the play time length of the music. Before digital audio time domain compression, the method finds out the audio segment subsequence capable of satisfying the specific condition according to the structure information of the music; and after the audio segment subsequence is deleted, the audio segments left in the music can be naturally and smoothly connected, thereby reducing influence on the digital audio play quality by the digital audio time domain compression, and improving the digital audio play effect after time domain compression.

Description

technical field [0001] The invention relates to a digital audio time-domain compression method based on audio segment segmentation, and belongs to the technical field of audio processing. Background technique [0002] With the development of Internet and multimedia technology, music has become an indispensable form of entertainment in people's daily life. When selecting a piece of music as the background music, usually the playing time of the selected piece of music does not match the required playing time. At this point, it is necessary to compress and adjust the content of the music while ensuring the playback effect of the music. Existing digital audio time-domain compression methods can be divided into uniform digital audio time-domain compression methods and non-uniform digital audio time-domain compression methods, such as the name "a digital audio time-domain compression method based on lyrics", the application number is CN200910235724 .3. The invention patent with ...

AI Technical Summary

Problems solved by technology

Existing digital audio time-domain compression methods can be divided into uniform digital audio time-domain compression methods and non-uniform digital audio time-domain compression methods, such as the name "a digital audio time-domain compression method based on lyrics", the application number is CN200910235724 .3. The invention patent with the publication number CN101702321A. The above two types of digital audio time domain compression methods will cause the playback rate of the music to be too fast when dealing with the situation that the playback time required by the user is greatly different from the original time length of the music. , sound jitter and other issues, the ideal time domain compression effect cannot be achieved

Images