LED发光环旋转速度的语音同步驱动方法与实现

A Synchronous Solution for Sound Driving LED Light Rotation

提出了一种提取声音幅度或节拍间隔信号用来实时控制发光环旋转速度的驱动技术和方法,通过语音拾取、检波、低通滤波器和开关网络的设计实现对由多段RGB LED发光体构成的发光环旋转速度的有效自动控制,达到声光同步互动的效果,为园林亮化建设、智慧家居和舞台灯光增添了新的元素。

A synchronous solution, for sound driving LED light spinning, is proposed by extracting either sound signal amplitude or beat interval, which can control the rotation speed of a illuminating RGB LED ring in real- time. Based on the solution, a system is developed, which includes several sections such as voice pickup, envelope detection, low pass filter and a switching network. Experiments indicate that rotation speed of a luminous RGB LED ring, composed of multiple segments, changes linearly and automatically with signal amplitude or interval length. The system is possibly, as a new element, applied to performance stage, smart home and landscape flooding.