A frequency division method and system
A frequency and frequency dividing point technology, applied in the field of frequency dividing methods and systems, can solve the problem that files cannot be played smoothly, and achieve the effect of smooth playback
Active Publication Date: 2019-05-31
LENOVO (BEIJING) LTD
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[0004] In view of this, the present invention provides a frequency division method and system to solve the problem in the prior art that audio files are divided by a fixed frequency division point, so that the frequency-divided files cannot be played smoothly. The specific solution as follows:
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[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0045] The invention discloses a frequency division method, the flow chart of which is as follows figure 1 shown, including:
[0046] Step S11, obtaining the content frequency curve of the audio;
[0047] Step S12, obtaining a bass output curve and a treble output curve according to the content frequency curve of the audio;
[0048] Each piece of audio has a fixed frequency curve, that is, the content frequency curve, and the content frequency curve is playe...
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The invention discloses a frequency division method and a frequency division system. A content frequency curve of an audio frequency is acquired, and a low tone output curve and a high tone output curve are acquired according to the content frequency curve of the audio frequency. The frequencies of the points of the low tone output curve and the high tone output curve, which are provided with the same coordinates, are frequency division points, and frequency curve signals determined by the frequency division points are output to different playing devices. By adopting the above mentioned technical scheme, the frequencies of the points of the low tone output curve and the high tone output curve, which are provided with the same coordinates, are the frequency division points, and then the frequency division points are changed along with changing of audio frequency files, and then the smooth playing of the audio frequency files after the frequency division is realized, and therefore a problem of a prior art that the files cannot be played smoothly after the frequency division because the frequency division is carried out by adopting the fixed frequency division point is prevented.
Description
technical field [0001] The present invention relates to the field of frequency division, in particular to a frequency division method and system. Background technique [0002] In modern communication equipment, frequency division equipment is widely used, and the frequency division equipment performs frequency division and playback of audio files. [0003] Usually the frequency division point is determined by the frequency division device. When performing frequency division on an audio file, the frequency division point is determined by selecting the frequency division device. That is, in the process of dividing the frequency of the entire audio file, the frequency division point is a fixed value, that is, no matter how the audio file changes, the frequency division point remains unchanged, and the bass frequency curve and the treble frequency curve are selected. The intersection point, which makes the entire frequency response curve M-shaped, that is, serious distortion oc...
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IPC IPC(8): H04R3/00
Inventor 李凡智庞建军
Owner LENOVO (BEIJING) LTD