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Audio frequency spectrum motion graph tender presenting algorithm

An audio spectrum and animation technology, applied in the field of progress bar display, can solve problems such as single function, and achieve the effect of small footprint

Active Publication Date: 2017-09-29
BEIJING KUWO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The progress bar is usually displayed in an independent area, and it also has a single function, and the human-computer interaction process needs to be further improved

Method used

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  • Audio frequency spectrum motion graph tender presenting algorithm

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Embodiment Construction

[0035] The present invention will be further described in detail below with reference to the accompanying drawings.

[0036] like figure 1 As shown, the audio spectrum animation soft presentation algorithm of the present invention includes the following steps:

[0037] Step 1, based on the View control, customize a new control class mProgress, and add an initialization method at the constructor;

[0038] The custom new control class mProgress includes:

[0039] Create a Path object wavePath used for spectrum drawing, and set corresponding parameters, the parameters at least include parameters such as spectrum array capacity,

[0040] Create spectral transforms using cached array objects cacheFFTs,

[0041] Create two Paint objects mForePaint1, mForePaint2,

[0042] Create a progress bar drawing variables max, min, value, the three variables represent the maximum value, minimum value and current value of the progress bar respectively, and the new custom control class mProgr...

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Abstract

The invention relates to an audio frequency spectrum motion graph tender presenting algorithm. After frequency spectrum data is imported, a specified amount of frequency spectrum data at the end with the richest frequency change in left and right sound channels is obtained, a set of frequency spectrum data is formed, a speed array mSpeeds is created or reutilized, the frequency spectrum data in a cacheFFTs array is utilized to divide the frequency of an interpolation before the frequency spectrum data is secondarily renewed, the dividing calculation is conducted three times, and satisfies the condition that it is designed that in a renewing interval of 100 ms, the frequency spectrum motion graph is interpolated once every 33 microseconds, and the following parameters are obtained, namely, the new corresponding frequency spectrum data in the frequency spectrum data, and the speed needed for the change; after the cacheFFTs array and the speed array mSpeed are calculated, asynchronous drawing circular calling is started. In the audio frequency spectrum motion graph tender presenting algorithm, interpolation matching is conducted on the frequency spectrum data renewing frequency interval and the drawn interval, in the data renewing interval of 100 microseconds, three times of drawing are achieved, the frequency spectrum data is changed segmentally during drawing, and tender presenting of a motion graph is achieved.

Description

technical field [0001] The invention relates to the technical field of progress bar display, in particular to an audio spectrum animation soft display algorithm. Background technique [0002] In Android, custom controls mainly include two categories: [0003] The first category, combining custom controls, refers to using various interface controls provided by the system, and encapsulating them into custom controls including multiple system controls through customization. The code handles the interaction of each sub-control internally to simplify the use. [0004] The second category, self-drawn controls, refers to the custom controls that use code to measure, draw, and process interactive events in the three methods of control measurement, layout, and drawing by inheriting various interface controls provided by the system. Self-drawn controls can provide a more novel interface and richer interaction methods than system controls. [0005] Spectrum animations are mostly disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0486G06F3/0485
CPCG06F3/04855G06F3/0486
Inventor 纪广兴
Owner BEIJING KUWO TECH