Design method of music color lamp controller based on rhythm following

Abstract

The invention relates to a design method of a music color lamp controller based on rhythm following. A music rhythm extraction algorithm based on waveform energy variation characteristic detection is employed and an acoustic characteristic and color lamp space mapping relation model is employed to process the audio signal, a music rhythm detection effect is achieved through a short-time energy extreme value judgment, and the time point information of a music rhythm is achieved. At the time point of music rhythm appearance, the short-time signal of the time point is subjected to spectrum analysis and processing, real-time acoustic energy and frequency domain characteristic parameters are obtained in real time, the mapping relation models of pitch and color domain, timbre and saturation, and sound intensity and brightness are established, a color lamp color is changed as a color obtained by the frequency domain information conversion of an audio waveform at the point, and the color lamp color change and music rhythm change synchronization is realized. According to the method, a color gradient mechanism is adopted in color lamp driving, and the soft change of a light effect is realized.

Description

technical field [0001] The invention belongs to the field of intelligent scene lighting, and relates to a design method of a music lantern controller for a wireless control terminal in intelligent scene lighting based on music rhythm following and acoustic feature analysis. Background technique [0002] Intelligent scene lighting refers to the adjustment of light switch, brightness and color through wireless control equipment (remote control, mobile phone application, etc.) in the environment of intelligent lighting system, so as to realize different lighting effects in different scenes. [0003] Smart scene lighting usually uses LED light sources. Commonly used scene lighting has music lighting effects, and the lights change with the music. To realize the lighting effects of music lights, you need to use a music lights controller. The music lantern controller is a device that can adjust the lantern in real time while playing music. At present, there are two common implem...

AI Technical Summary

Problems solved by technology

At present, there are two common implementation methods of music lantern controllers: one is to manually arrange the color change sequence of the lantern according to the specific music, and then change the color of the lantern according to the set color sequence when the music is playing. It can achieve a better color change effect of colored lights, but it is necessary to arrange different color change sequences for different songs, which consumes a lot of time and labor costs

Another method is to change the color of the colored lights regularly while playing music. This method is relatively simple to operate and easy to implement, but the coordination between the changing effect of the colored lights and the change of music melody and sense of rhythm is poor.

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