Music frequency and volume control of LED display (MCL)

Abstract

The music control LED ( MCL) system is considered as one of the most important systems in the world . the main objectives of this project are : to build aesthetic photo LEDpanel changeable by music, to provide a new announcements system , and to add a beauty effect in musical environment. This system multi-colored pattern lighting systems and more particularly a synthesizemusic system having light sources that illuminate in accordance to special pattern , patterns displaying in synchronization with a music or sound source and with the light patterns being free to associate with any sound so as to provide maximum creative audio-visual flexibility. In this project the music source sends music signals . these analog signals go to the input of the (PIC18F4550) microcontroller for sampling and processing . the (PIC18F4550) can sample the signal, and provides several analog to digital converters (ADCs) which can be used to measure a voltage from 0v to 5v with 10-bit accuracy (10-1023) , after that using fast fourier transform (FFT) to decompose a sequence of values into components of different frequencies . Output data signal transmit through XBee transceiver to show panel , that’s mean the output of FFT algorithm displayed using LEDs that contain in show panel to creative beautiful effect of music.